2007 Jeep Wrangler Owners Manual

200 lbs (91 kg)

1,000 lbs (453 kg)

100 lbs (45 kg)

2,000 lbs (907 kg)

200 lbs (91 kg)

2,000 lbs (907 kg)

200 lbs (91 kg)

2,000 lbs (907 kg)

200 lbs (91 kg)

336 STARTING AND OPERATING

Engine/ Transmis-

sion 3.8L/

Automatic

3.8L/ Manual 3.8L/ Manual 3.8L/

Automatic

3.8L/ Manual 3.8L/ Manual 3.8L/

Automatic

3.8L/ Manual

Axle

Model

4.10 2 Door Rubicon Model (4WD) 3.21 4 Door X Model

(2WD)

4.10 4 Door X Model

(2WD)

4.10 4 Door X Model

(2WD)

3.21

4.10

4 Door Sahara Model (2WD) 4 Door Sahara Model (2WD) 4 Door Sahara Model (2WD) 3.21 4 Door X Model

4.10

(4WD)

GCWR (Gross Combined Wt.

Rating)

6,243 lbs (2 832 kg)

5,126 lbs (2 325 kg)

7,626 lbs (3 459 kg)

7,649 lbs (3 469 kg)

5,289 lbs (2 399 kg)

7,789 lbs (3 533 kg)

7,812 lbs (3 543 kg)

5,330 lbs (2 418 kg)

Frontal Area Max. GTW (Gross

Trailer Wt.)

Max. Tongue Wt.

(See Note 1)

25 sq. ft. (2.32
square meters) 32 sq. ft. (2.97
square meters) 32 sq. ft. (2.97
square meters) 32 sq. ft. (2.97
square meters) 32 sq. ft. (2.97
square meters) 32 sq. ft. (2.97
square meters) 32 sq. ft. (2.97
square meters) 32 sq. ft. (2.97
square meters)

2,000 lbs (907 kg)

200 lbs (91 kg)

1,000 lbs (453 kg)

100 lbs (45 kg)

3,500 lbs (1 587 kg)

350 lbs (159 kg)

3,500 lbs (1 587 kg)

350 lbs (159 kg)

1,000 lbs (453 kg)

100 lbs (45 kg)

3,500 lbs (1 587 kg)

350 lbs (159 kg)

3,500 lbs (1 587 kg)

350 lbs (159 kg)

1,000 lbs (453 kg)

100 lbs (45 kg)

Engine/ Transmis-

sion 3.8L/ Manual 3.8L/

Automatic

3.8L/ Manual 3.8L/ Manual 3.8L/

Automatic

3.8L/ Manual 3.8L/

Automatic

Axle

Model

4.10 4 Door X Model

(4WD)

4.10 4 Door X Model

(4WD)

4.10

3.21

4.10

4 Door Sahara Model (4WD) 4 Door Sahara Model (4WD) 4 Door Sahara Model (4WD) 4.10 4 Door Rubicon Model (4WD) 4.10 4 Door Rubicon Model (4WD)

STARTING AND OPERATING 337

GCWR (Gross Combined Wt.

Rating)

7,830 lbs (3 552 kg)

7,853 lbs (3 562 kg)

5,497 lbs (2 493 kg)

7,997 lbs (3 627 kg)

8,020 lbs (3 638 kg)

8,059 lbs (3 655 kg)

8,083 lbs (3 666 kg)

Frontal Area Max. GTW (Gross

Trailer Wt.)

Max. Tongue Wt.

(See Note 1)

32 sq. ft. (2.97
square meters) 32 sq. ft. (2.97
square meters) 32 sq. ft. (2.97
square meters) 32 sq. ft. (2.97
square meters) 32 sq. ft. (2.97
square meters) 32 sq. ft. (2.97
square meters) 32 sq. ft. (2.97
square meters)

3,500 lbs (1 587 kg)

350 lbs (159 kg)

3,500 lbs (1 587 kg)

350 lbs (159 kg)

1,000 lbs (453 kg)

100 lbs (45 kg)

3,500 lbs (1 587 kg)

350 lbs (159 kg)

3,500 lbs (1 587 kg)

350 lbs (159 kg)

3,500 lbs (1 587 kg)

350 lbs (159 kg)

3,500 lbs (1 587 kg)

350 lbs (159 kg)

Refer to local laws for maximum trailer towing speeds.

338 STARTING AND OPERATING

NOTE: The trailer tongue weight must be considered as part of the combined weight of occupants and cargo, and should never exceed the weight referenced on the Tire and Loading Information placard. Refer to the Tire– Safety Information section in this manual. Trailer and Tongue Weight Always load a trailer with 60% to 65% of the weight in the front of the trailer. This places 10% to 15% of the Gross Trailer Weight (GTW) on the tow hitch of your vehicle. Loads balanced over the wheels or heavier in the rear can cause the trailer to sway severely side to side which will cause loss of control of vehicle and trailer. Failure to load trailers heavier in front is the cause of many trailer accidents.

put in or on your vehicle.

Consider the following items when computing the weight on the rear axle of the vehicle: • The tongue weight of the trailer. • The weight of any other type of cargo or equipment • The weight of the driver and all passengers. NOTE: Remember that everything put into or on the trailer adds to the load on your vehicle. Also, additional factory-installed options, or dealer-installed options, must be considered as part of the total load on your vehicle. Refer to the Tire and Loading Information plac- ard in the Tire Safety Information section of this manual for the maximum combined weight of occupants and cargo for your vehicle.

STARTING AND OPERATING 339

Towing Requirements To promote proper break-in of your new vehicle driv- etrain components the following guidelines are recom- mended: NOTE: Trailer towing requires special rear axle lubri- cant. Refer to “Fluids, Lubricants, and Genuine Parts” in Section 7 for more information.

CAUTION!

• Avoid towing a trailer for the first 500 miles (805
km) of vehicle operation. Doing so may damage your vehicle.

Perform the maintenance listed in Section 8 of this manual. When towing a trailer, never exceed the GAWR, or GCWR, ratings.

340 STARTING AND OPERATING

WARNING!

Improper towing can lead to an injury accident. Follow these guidelines to make your trailer towing as safe as possible: Make certain that the load is secured in the trailer and will not shift during travel. When trailering cargo that is not fully secured, dynamic load shifts can occur that may be difficult for the driver to control. You could lose control of your vehicle and have an accident.

• When hauling cargo or towing a trailer, do not over- load your vehicle or trailer. Overloading can cause a loss of control, poor performance or damage to brakes, axle, engine, transmission, steering, suspension, chas- sis structure or tires.

• Safety chains must always be used between your vehicle and trailer. Always connect the chains to the frame or hook retainers of the vehicle hitch. Cross the chains under the trailer tongue and allow enough slack for turning corners. • Vehicles with trailers should not be parked on a grade. When parking, apply the parking brake on the tow vehicle. Put the tow vehicle automatic transmission in P (Park). With a manual transmission, shift the trans- mission into 1st gear. And with four-wheel-drive ve- hicles, make sure the transfer case is not in N (Neu- tral). Always, block or ⬙chock⬙ the trailer wheels.

• GCWR must not be exceeded. • Total weight must be distributed between the tow vehicle and the trailer such that the following four ratings are not exceeded: 1. GVWR

STARTING AND OPERATING 341

2. GTW 3. GAWR 4. Tongue weight rating for the trailer hitch utilized (This requirement may limit the ability to always achieve the 10% to 15% range of tongue weight as a percentage of total trailer weight).

Towing Requirements — Tires − Do not attempt to tow a trailer while using a compact

spare tire.

− Proper tire inflation pressures are essential to the safe and satisfactory operation of your vehicle. Refer to the Tires–General Information section of this manual on Tire Pressures for proper tire inflation procedures.

− Check for signs of tire wear or visible tire damage before towing a trailer. Refer to the Tires–General Information section of this manual on Tread Wear Indicators for the proper inspection procedure.

− When replacing tires, refer to the Tires–General Infor- mation section of this manual on Replacement Tires for proper tire replacement procedures. Replacing tires with a higher load carrying capacity will not increase the vehicle’s GVWR and GAWR limits. Towing Requirements — Trailer Brakes − Do not interconnect the hydraulic brake system or vacuum system of your vehicle with that of the trailer. This could cause inadequate braking and possible personal injury.

− Also, check the trailer tires for proper tire inflation

pressures before trailer usage.

− An electronically actuated trailer brake controller is required when towing a trailer with electronically

342 STARTING AND OPERATING

actuated brakes. When towing a trailer equipped with a hydraulic surge actuated brake system, an electronic brake controller is not required.

− Trailer brakes are recommended for trailers over 1,000
lbs (454 kg) and required for trailers in excess of 2,000
lbs (907 kg).

CAUTION!

If the trailer weighs more than 1,000 lbs (454 kg) loaded, it should have its own brakes and they should be of adequate capacity. Failure to do this could lead to accelerated brake lining wear, higher brake pedal effort, and longer stopping distances.

WARNING!

Do not connect trailer brakes to your vehicle’s hy- draulic brake lines. It can overload your brake sys- tem and cause it to fail. You might not have brakes when you need them and could have an accident. Towing any trailer will increase your stopping dis- tance. When towing you should allow for additional space between your vehicle and the vehicle in front of you. Failure to do so could result in an accident.

Towing Requirements — Trailer Lights & Wiring Whenever you pull a trailer, regardless of the trailer size, stop lights and turn signals on the trailer are required for motoring safety. The Trailer Tow Package may include a 4 and 7 pin wiring harness. Use a factory approved trailer harness and connector. NOTE: Do not cut or splice wiring into the vehicles wiring harness. The electrical connections are all complete to the vehicle but you must mate the harness to a trailer connector. Refer to the following illustrations.

STARTING AND OPERATING 343

4 - Pin Connector

344 STARTING AND OPERATING

7- Pin Connector

Towing Tips Before setting out on a trip, practice turning, stopping and backing the trailer in an area away from heavy traffic. If using a manual transmission vehicle for trailer towing, all starts must be in FIRST gear to avoid excessive clutch slippage. Towing Tips — Automatic Transmission The “D” range can be selected when towing. However, if frequent shifting occurs while in this range, the “3” range should be selected. NOTE: Using the “3” range while operating the vehicle under heavy operating conditions will improve perfor- mance and extend transmission life by reducing exces- sive shifting and heat build up. This action will also provide better engine braking.

The automatic transmission fluid and filter should be changed if you REGULARLY tow a trailer for more than 45 minutes of continuous operation. See “Schedule B” in section 8 of this manual for transmission fluid change intervals. NOTE: Check the automatic transmission fluid level before towing. Towing Tips — O/D Off (If Equipped) To reduce potential for automatic transmission overheat- ing, turn the “O/D OFF” feature OFF when driving in hilly areas or shift the transmission to Drive position 2 on more severe grades. Refer to “Transmission Shifting” in this section. Towing Tips — Electronic Speed Control (If Equipped) − Don’t use in hilly terrain or with heavy loads.

STARTING AND OPERATING 345

− When using the speed control, if you experience speed drops greater than 10 mph (16 km/h), disengage until you can get back to cruising speed.

− Use speed control in flat terrain and with light loads to

maximize fuel efficiency.

Towing Tips — Cooling System To reduce potential for engine and transmission over- heating, take the following actions: − Highway Driving Reduce speed. − Air Conditioning Turn off temporarily. − refer to Cooling System Operating information in the Maintenance section of this manual for more informa- tion.

346 STARTING AND OPERATING

RECREATIONAL TOWING (BEHIND MOTORHOME, ETC.)

CAUTION!

Front or rear wheel lifts should not be used. Internal damage to the transmission or transfer case will occur if a front or rear wheel lift is used when recreational towing.

Towing – 2WD Models

Recreational towing is allowed ONLY if the rear drive- shaft is removed. See your authorized dealer or refer to the Service Manual. Towing with the rear wheels on the ground while the driveshaft is connected can result in severe transmission damage.

Towing – 4WD Models

NOTE: The transfer case must be shifted into N (Neu- tral) for recreational towing. Shifting Into Neutral (N) Use the following procedure to prepare your vehicle for recreational towing.

CAUTION!

It is necessary to follow these steps to be certain that the transfer case is fully in N (Neutral) before recre- ational towing to prevent damage to internal parts.

1. Depress brake pedal. 2. Shift automatic transmission into N (Neutral) or de- press clutch pedal on manual transmission. 3. Shift transfer case lever into N (Neutral).

4. Start engine. 5. Shift automatic transmission into D (Drive) or manual transmission into gear. 6. Release brake pedal and ensure that there is no vehicle movement. 7. Shut the engine off and place the ignition key into the ACC position. 8. Shift automatic transmission into P (Park). 9. Apply parking brake. 10. Attach vehicle to the tow vehicle with tow bar. 11. Release parking brake. 12. Disconnect the negative battery cable, and secure it away from the negative battery post.

STARTING AND OPERATING 347

CAUTION!

Damage to the transmission may occur if the trans- mission is shifted into P (Park) with the transfer case in N (Neutral) and the engine running. With the transfer case in N (Neutral) ensure that the engine is off prior to shifting the transmission into P (Park) (refer to steps 7 – 8 above).

Shifting Out Of Neutral (N)

Use the following procedure to prepare your vehicle for normal usage. 1. Shift automatic transmission into N (Neutral) or de- press clutch pedal on manual transmission. 2. Shift transfer case lever into desired position.

348 STARTING AND OPERATING

3. Shift automatic transmission into D (Drive) or release clutch on manual transmissions. NOTE: When shifting out of transfer case N (Neutral) on automatic transmission equipped vehicles, turning the engine off may be required to avoid gear clash.

CAUTION!

• Do not use a bumper mounted clamp-on tow bar on your vehicle. The bumper face bar will be damaged.

WARNING!

You or others could be injured if you leave the vehicle unattended with the transfer case in the N (Neutral) position without first fully engaging the parking brake. The transfer case N (Neutral) position disengages both the front and rear driveshafts from the powertrain and will allow the vehicle to move despite the transmission position. The parking brake should always be applied when the driver is not in the vehicle.

WHAT TO DO IN EMERGENCIES

CONTENTS

䡵 Hazard Warning Flashers . . . . . . . . . . . . . . . . . 350
䡵 If Your Engine Overheats . . . . . . . . . . . . . . . . . 351
䡵 Jacking And Tire Changing . . . . . . . . . . . . . . . . 352
▫ Jack Location . . . . . . . . . . . . . . . . . . . . . . . . 352
▫ Spare Tire Stowage . . . . . . . . . . . . . . . . . . . . 353

▫ Preparations For Jacking . . . . . . . . . . . . . . . . 353
▫ Jacking Instructions . . . . . . . . . . . . . . . . . . . . 354
䡵 Jump Starting . . . . . . . . . . . . . . . . . . . . . . . . . 356
䡵 Emergency Tow Hooks — If Equipped . . . . . . . . 358
䡵 Towing A Disabled Vehicle . . . . . . . . . . . . . . . . 359

350 WHAT TO DO IN EMERGENCIES

HAZARD WARNING FLASHERS Your vehicle’s hazard warning flasher is an emergency warning system. When you activate it, all front and rear directional signals will flash intermittently. Use it when your vehicle is disabled on or near the road. It warns other drivers to steer clear of you and your vehicle. This is an emergency warning system, not to be used when the vehicle is in motion. To activate the warning flashers, press the button on the lower switch bank (below the climate controls). To turn the warning flashers off, press the button again.

Hazard Warning Switch

NOTE: With extended use, the flasher may wear down your battery.

IF YOUR ENGINE OVERHEATS In any of the following situations, you can reduce the potential for overheating by taking the appropriate ac- tion. • On the highways — Slow down. • In city traffic — While stopped, put transmission in N

(Neutral), but do not increase engine idle speed.

NOTE: There are steps that you can take to slow down an impending overheat condition. If your air conditioner is on, turn it off. The air conditioning system adds heat to the engine cooling system and turning off the A/C removes this heat. You can also turn the Temperature Control to maximum heat, the Mode Control to floor, and the Fan Control to High. This allows the heater core to act as a supplement to the radiator and aids in removing heat from the engine cooling system.

WHAT TO DO IN EMERGENCIES 351

CAUTION!

Driving with a hot cooling system could damage your vehicle. If the temperature gauge reads “H”, pull over and stop the vehicle. Idle the vehicle with the air conditioner turned off until the pointer drops back into the normal range. If the pointer remains on the “H”, and you hear continuous chimes, turn the engine off immediately, and call for service.

352 WHAT TO DO IN EMERGENCIES

JACKING AND TIRE CHANGING

Jack Location

The jack and lug wrench are located in the rear storage compartment. Refer to “Storage” in Section 3 of this manual.

WARNING!

• Getting under a jacked-up vehicle is dangerous. The vehicle could slip off the jack and fall on you. You could be crushed. Never get any part of your body under a vehicle that is on a jack. If you need to get under a raised vehicle, take it to a service center where it can be raised on a lift. • The jack is designed to use as a tool for changing tires only. The jack should not be used to lift the vehicle for service purposes. The vehicle should be jacked on a firm level surface only. Avoid ice or slippery areas.

Jack Storage

Spare Tire Stowage To remove the spare tire from the carrier, remove the tire cover, if equipped, and remove the lug nuts with the lug wrench turning them counterclockwise. If you have added aftermarket accessories to the NOTE: spare tire mounted carrier, it cannot exceed a gross weight of 50 lbs (23 kg) including the weight of the spare tire. Preparations For Jacking Park on a firm level surface, avoid ice or slippery areas, set the parking brake and place automatic transmission in P (Park), or manual transmission in R (Reverse). Turn OFF the ignition.

WHAT TO DO IN EMERGENCIES 353

WARNING!

Do not attempt to change a tire on the side of the vehicle close to moving traffic. Pull far enough off the road to avoid being hit when operating the jack or changing the wheel.

• Turn on the Hazard Warning Flasher.

• Block both the front and rear of the wheel diagonally oppo- site of the jacking position. For example, if changing the right front tire, block the left rear wheel. • Passengers should not remain in the vehicle when the

vehicle is being jacked.

354 WHAT TO DO IN EMERGENCIES

Jacking Instructions

1. Remove spare tire, jack and tools from stored location. 2. Loosen (but do not remove) the wheel lug nuts by turning them to the left one turn while the wheel is still on the ground. 3. Assemble the jack and jacking tools. Connect jack handle driver to extension, then to lug wrench. 4. Operate jack from the front or the rear of the vehicle. Place the jack under the axle tube, as shown. Do not raise the vehicle until you are sure the jack is fully engaged.

Jacking Locations

5. Raise the vehicle by turning the jack screw to the right. Raise the vehicle only until the tire just clears the surface and enough clearance is obtained to install the spare tire. Minimum tire lift provides maximum stability.

WARNING!

Raising the vehicle higher than necessary can make the vehicle less stable and cause an accident. It could slip off the jack and hurt someone near it. Raise the vehicle only enough to remove the tire.

6. Remove the lug nuts and wheel. 7. Position spare wheel/tire on vehicle and install lug nuts with cone-shaped end toward wheel. Lightly tighten nuts clockwise. To avoid the risk of forcing the vehicle off the jack, do not tighten the nuts fully until the vehicle has been lowered. 8. Lower the vehicle by turning the jack screw to the left, and remove the jack and wheel blocks. 9. Finish tightening the lug nuts. Push down on the wrench while tightening for increased leverage. Alternate

WHAT TO DO IN EMERGENCIES 355

nuts until each nut has been tightened twice. Correct wheel nut tightness is 130 N·m (95 ft. lbs). If in doubt about the correct tightness, have them checked with a torque wrench by your authorized dealer or at a service station. 10. Remove jack assembly and wheel blocks.

WARNING!

A loose tire or jack, thrown forward in a collision or hard stop could endanger the occupants of the ve- hicle. Always stow the jack parts and the spare tire in the places provided.

11. Secure the tire, jack, and tools in their proper loca- tions.

356 WHAT TO DO IN EMERGENCIES

JUMP STARTING If the vehicle has a discharged battery, booster cables may be used to obtain a start from a booster battery or the battery in another vehicle. This type of start can be danger- ous if done improperly, so follow this procedure carefully.

WARNING!

Battery fluid is a corrosive acid solution; do not allow battery fluid to contact eyes, skin or clothing. Don’t lean over battery when attaching clamps or allow the clamps to touch each other. If acid splashes in eyes or on skin, flush contaminated area immediately with large quan- tities of water. A battery generates hydrogen gas which is flammable and explosive. Keep flame or spark away from the vent holes. Do not use a booster battery or any other booster source that has a greater than 12 volt system, i.e. Do not use a 24
volt power source.

1. Remove all metal jewelry such as watch bands or bracelets which might make an unintended electrical contact. 2. Park the booster vehicle within cable reach but with- out letting the vehicles touch. Set the parking brake on both vehicles, place the automatic transmission in P (Park), or the manual transmission in N (Neutral), and turn the ignition OFF. 3. Turn off the heater, radio, and all unnecessary electri- cal loads. 4. Connect one end of a jumper cable to the positive terminal of the booster battery. Connect the other end of the same cable to the positive terminal of the discharged battery.

WARNING!

Do not permit vehicles to touch each other as this could establish a ground connection and personal injury could result.

5. Connect the other cable, first to the negative terminal of the booster battery and then to the engine of the vehicle with the discharged battery. Make sure you have a good contact on the engine.

WHAT TO DO IN EMERGENCIES 357

WARNING!

or towing.

• You should not try to start your vehicle by pushing • Do not connect the cable to the negative post of the discharge battery. The resulting electrical spark could cause the battery to explode. • During cold weather when temperatures are be- low freezing point, electrolyte in a discharged battery may freeze. Do not attempt jump starting because the battery could rupture or explode. The battery temperature must be brought up above freezing point before attempting jump start.

358 WHAT TO DO IN EMERGENCIES

6. Start the engine in the vehicle which has the booster battery, let the engine idle a few minutes, then start the engine in the vehicle with the discharged battery. 7. When removing the jumper cables, reverse the above sequence exactly. Be careful of the moving belts and fan.

WARNING!

Any procedure other than above could result in: 1. Personal injury caused by electrolyte squirting out the battery vent; 2. Personal injury or property damage due to battery explosion; 3. Damage to charging system of booster vehicle or of immobilized vehicle.

EMERGENCY TOW HOOKS — IF EQUIPPED If your vehicle is equipped with tow hooks, they are mounted in the front and the rear.

CAUTION!

Tow hooks are for emergency use only, to rescue a vehicle stranded off road. Do not use tow hooks for tow truck hookup or highway towing. You could damage your vehicle. Tow straps are recommended when towing the vehicle, chains may cause vehicle damage.

WARNING!

Stand clear of vehicles when pulling with tow hooks. Tow straps and chains may break, causing serious injury.

WHAT TO DO IN EMERGENCIES 359

TOWING A DISABLED VEHICLE The manufacturer recommends towing with all four wheels OFF the ground. Acceptable methods are to tow the vehicle on a flatbed or with one end of the vehicle raised and the other end on a towing dolly.

MAINTAINING YOUR VEHICLE

CONTENTS

䡵 Engine Compartment – 3.8L . . . . . . . . . . . . . . . 364
䡵 Onboard Diagnostic System — OBD II . . . . . . . . 365
▫ Loose Fuel Filler Cap Message . . . . . . . . . . . . 366

䡵 Emissions Inspection And Maintenance

Programs

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 366
䡵 Replacement Parts . . . . . . . . . . . . . . . . . . . . . . 368
䡵 Dealer Service . . . . . . . . . . . . . . . . . . . . . . . . . 368
䡵 Maintenance Procedures . . . . . . . . . . . . . . . . . . 369
. . . . . . . . . . . . . . . . . . . . . . . . . . 369

▫ Engine Oil

▫ Drive Belts — Check Condition And Tension . . 372
▫ Spark Plugs . . . . . . . . . . . . . . . . . . . . . . . . . 373
▫ Catalytic Converter . . . . . . . . . . . . . . . . . . . . 373
▫ Crankcase Emission Control System . . . . . . . . 375
▫ Fuel Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 375
▫ Engine Air Cleaner Filter . . . . . . . . . . . . . . . . 375
▫ Maintenance-Free Battery . . . . . . . . . . . . . . . . 376
▫ Air Conditioner Maintenance . . . . . . . . . . . . . 376
▫ Power Steering Fluid Check . . . . . . . . . . . . . . 377

362 MAINTAINING YOUR VEHICLE

▫ Driveline And Steering Component

Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . 378
▫ Body Lubrication . . . . . . . . . . . . . . . . . . . . . 378
▫ Windshield Wiper Blades . . . . . . . . . . . . . . . . 379
▫ Windshield Washers . . . . . . . . . . . . . . . . . . . 379
▫ Exhaust System . . . . . . . . . . . . . . . . . . . . . . 380
▫ Cooling System . . . . . . . . . . . . . . . . . . . . . . . 380
▫ Hoses And Vacuum/Vapor Harnesses . . . . . . . 385
▫ Brake System . . . . . . . . . . . . . . . . . . . . . . . . 386
▫ Automatic Transmission . . . . . . . . . . . . . . . . 388
▫ Hydraulic Clutch Fluid — Manual

Transmission . . . . . . . . . . . . . . . . . . . . . . . . 390
▫ Manual Transmission . . . . . . . . . . . . . . . . . . 390
▫ Transfer Case . . . . . . . . . . . . . . . . . . . . . . . . 391

▫ Front/Rear Axle Fluid . . . . . . . . . . . . . . . . . . 392
▫ Appearance Care And Protection From

Corrosion . . . . . . . . . . . . . . . . . . . . . . . . . . . 393
䡵 Fuses (Totally Integrated Power Module) . . . . . . 400
䡵 Vehicle Storage . . . . . . . . . . . . . . . . . . . . . . . . 407
䡵 Replacement Bulbs — If Equipped . . . . . . . . . . . 408
䡵 Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 409
▫ Head Light . . . . . . . . . . . . . . . . . . . . . . . . . . 409
▫ Front Park/Turn Signal . . . . . . . . . . . . . . . . . 410
▫ Front Side Marker . . . . . . . . . . . . . . . . . . . . . 410
▫ Front Fog Light . . . . . . . . . . . . . . . . . . . . . . 410
▫ Rear Tail, Stop, Turn Signal, And Back-Up

Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411
▫ Center High Mounted Stop Light (CHMSL) . . . 411

䡵 Fluid Capacities . . . . . . . . . . . . . . . . . . . . . . . . 412
䡵 Fluids, Lubricants And Genuine Parts . . . . . . . . 413

▫ Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413
▫ Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . 414

MAINTAINING YOUR VEHICLE 363

364 MAINTAINING YOUR VEHICLE

ENGINE COMPARTMENT – 3.8L

ONBOARD DIAGNOSTIC SYSTEM — OBD II Your vehicle is equipped with a sophisticated onboard diagnostic system called OBD II. This system monitors the performance of the emissions, engine, and automatic transmission control systems. When these systems are operating properly, your vehicle will provide excellent performance and fuel economy, as well as engine emis- sions well within current government regulations. If any of these systems require service, the OBD II system will turn on the “Malfunction Indicator Light.” It will also store diagnostic codes and other information to assist your service technician in making repairs. Al- though your vehicle will usually be drivable and not need towing, see your dealer for service as soon as possible.

MAINTAINING YOUR VEHICLE 365

CAUTION!

• Prolonged driving with the “Malfunction Indica- tor Light” on could cause further damage to the emission control system. It could also affect fuel economy and driveability. The vehicle must be serviced before any emissions tests can be per- formed. • If the “Malfunction Indicator Light” is flashing while the engine is running, severe catalytic con- verter damage and power loss will soon occur. Immediate service is required.

366 MAINTAINING YOUR VEHICLE

Loose Fuel Filler Cap Message After fuel is added, the vehicle diagnostic system can determine if the fuel filler cap is possibly loose, improp- erly installed, or damaged. A loose fuel filler cap message will be displayed in the instrument cluster. Tighten the gas cap until a ⬙clicking⬙ sound is heard. This is an indication that the gas cap is properly tightened. Press the odometer reset button to turn the message off. If the problem persists, the message will appear the next time the vehicle is started. This might indicate a damaged cap. If the problem is detected twice in a row, the system will turn on the Malfunction Indicator Light (MIL). Resolving the problem will turn the MIL light off.

EMISSIONS INSPECTION AND MAINTENANCE PROGRAMS In some localities, it may be a legal requirement to pass an inspection of your vehicle’s emissions control system. Failure to pass could prevent vehicle registration.

For states, which have an I/M (Inspection and Maintenance) requirement, this check verifies the following: the MIL (Malfunction Indicator Light) is functioning and is not on when the engine is running, and that the OBD (On Board Diagnostic) system is ready for testing. Normally, the OBD system will be ready. The OBD system may not be ready if your vehicle was recently serviced, if you recently had a dead battery, or a battery replacement. If the OBD system should be determined not ready for the I/M test, your vehicle may fail the test.

Your vehicle has a simple ignition key actuated test, which you can use prior to going to the test station. To check if your vehicle’s OBD system is ready, you must do the following: 1. Insert your ignition key into the ignition switch. 2. Turn the ignition to the ON position, but do not crank or start the engine. 3. If you crank or start the engine, you will have to start this test over. 4. As soon as you turn your key to the ON position, you will see your MIL symbol come on as part of a normal bulb check. 5. Approximately 15 seconds later, one of two things will happen:

a. The MIL will flash for about 10 seconds and then return to being fully illuminated until you turn off the

MAINTAINING YOUR VEHICLE 367

ignition key or start the engine. This means that your vehicle’s OBD system is not ready and you should not proceed to the I/M station. b. The MIL will not flash at all and will remain fully illuminated until you turn off the ignition key or start the engine. This means that your vehicle’s OBD system is ready and you can proceed to the I/M station.

If your OBD system is not ready, you should see your authorized dealer or repair facility. If your vehicle was recently serviced or had a battery failure or replacement, you may need to do nothing more than drive your vehicle as you normally would in order for your OBD system to update. A recheck with the above test routine may then indicate that the system is now ready. Regardless of whether your vehicle’s OBD system is ready or not ready, if the MIL symbol is illuminated during normal vehicle operation, you should have your

368 MAINTAINING YOUR VEHICLE

vehicle serviced before going to the I/M station. The I/M station can fail your vehicle because the MIL symbol is on with the engine running.

NOTE: systems can result against you.

Intentional tampering with emissions control in civil penalties being assessed

REPLACEMENT PARTS Use of genuine Mopar威 parts for normal/scheduled maintenance and repairs is highly recommended to in- sure the designed performance. Damage or failures caused by the use of non-Mopar威 parts for maintenance and repairs will not be covered by the manufacturer’s warranty.

DEALER SERVICE Your dealer has the qualified service personnel, special tools, and equipment to perform all service operations in an expert manner. Service Manuals are available which include detailed service information for your vehicle. Refer to these manuals before attempting any procedure yourself.

WARNING!

You can be badly injured working on or around a motor vehicle. Only do service work for which you have the knowledge and the proper equipment. If you have any doubt about your ability to perform a service job, take your vehicle to a competent mechanic.

MAINTAINING YOUR VEHICLE 369

Checking the oil while the vehicle is on level ground will improve the accuracy of the oil level readings. Always maintain the oil level within the SAFE zone on the dipstick. Adding one quart of oil when the reading is at the bottom of the SAFE zone will result in a reading at the top of the safe zone on these engines.

MAINTENANCE PROCEDURES The pages that follow contain the required maintenance services determined by the engineers who designed your vehicle. Besides the maintenance items for which there are fixed maintenance intervals, there are other items that should operate satisfactorily without periodic maintenance. However, if a malfunction of these items does occur, it could adversely affect the engine or vehicle performance. These items should be inspected if a malfunction is observed or suspected. Engine Oil

Checking Oil Level To assure proper lubrication of your vehicle’s engine, the engine oil must be maintained at the correct level. The best time to check the engine oil level is about 5 minutes after a fully warmed up engine is shut off or before starting the engine after it has sat overnight.

370 MAINTAINING YOUR VEHICLE

CAUTION!

Overfilling or underfilling the crankcase will cause aeration or loss of oil pressure. This could damage your engine.

Change Engine Oil Road conditions as well as your kind of driving affect the interval at which your oil should be changed. Check the following to determine if any apply to you: • Day or night temperatures are below 32°F (0°C) • Stop and go driving • Extensive engine idling • Driving in dusty conditions • Short trip driving of less than 10 miles (16.2 km)

speeds during hot weather, above 90°F (32°C)

• More than 50% of your driving is at sustained high • Taxi, Police, or delivery service (commercial service) • Trailer towing • Off-road or desert driving • If equipped for and operating with E–85 (ethanol) fuel If ANY of these apply to you, then change your engine oil at every interval shown in schedule “B” of the “Mainte- nance Schedules” section of this manual. If none of these apply to you, then change your engine oil at every interval shown on schedule “A” of the “Main- tenance Schedules” section of this manual NOTE: Under no circumstances should oil change in- tervals exceed 6,000 miles (10 000 km) or 6 months whichever comes first.

Engine Oil Selection For best performance and maximum protection for all engines under all types of operating conditions, the manufacturer recommends engine oils that are API Cer- tified and meet the requirements of DaimlerChrysler Material Standard MS-6395. American Petroleum Institute (API) Engine Oil Identification Symbol

This symbol means that the oil has been certified by the American Petroleum Institute (API). The manufacturer only recommends API Certified engine oils.

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Engine Oil Viscosity (3.8L Engines) SAE 5W-20 engine oil is recommended for all operating temperatures. This engine oil improves low tempera- ture starting and vehicle fuel economy. Your engine oil filler cap shows the recommended engine oil viscosity for your vehicle. Lubricants which do not have both, the engine oil certi- fication mark and the correct SAE viscosity grade num- ber should not be used. Materials Added To Engine Oils The manufacturer strongly recommends against the ad- dition of any additives (other than leak detection dyes) to engine oil. Engine oil is an engineered product and it’s performance may be impaired by supplemental addi- tives. Disposing of Used Engine Oil Care should be taken in disposing of used engine oil from your vehicle. Used oil, indiscriminately discarded, can

372 MAINTAINING YOUR VEHICLE

present a problem to the environment. Contact your authorized dealer, service station, or governmental agency for advice on how and where used oil can be safely discarded in your area. Engine Oil Filter The engine oil filter should be replaced at every engine oil change. Engine Oil Filter Selection All of the manufacturer’s engines have a full-flow type disposable oil filter. Use a filter of this type for replace- ment. The quality of replacement filters varies consider- ably. Only high quality filters should be used to assure most efficient service. Mopar威 engine oil filters are high quality oil filters and are recommended.

Drive Belts — Check Condition and Tension Belt tension is controlled by means of an automatic tensioner. No belt tension adjustments are required. However, belt and belt tensioner condition should be inspected at the specified intervals, and replaced if re- quired. See your authorized dealer for service At the mileage indicated in the appropriate “Mainte- nance Schedule”, all belts and tensioner should be checked for condition. Improper belt tension can cause belt slippage and failure. Belts should be inspected for evidence of cuts, cracks, glazing, or frayed cords and replaced if there is indication of damage which could result in belt failure. Low gen- erator belt tension can cause battery failure. Also check belt routing to make sure there is no interfer- ence between the belts and other engine components.

Spark Plugs Spark plugs must fire properly to assure engine perfor- mance and emission control. New plugs should be in- stalled at the mileage specified in the appropriate main- tenance chart. The entire set should be replaced if there is any malfunction due to a faulty spark plug. Refer to the “Vehicle Emission Control Information” label in the engine compartment for spark plug information. Catalytic Converter The catalytic converter requires the use of unleaded fuel only. Leaded gasoline will destroy the effectiveness of the converter as an emission control device. Under normal operating conditions, the catalytic con- verter will not require maintenance. However, it is im- portant to keep the engine properly tuned to assure proper catalyst operation and prevent possible catalyst damage.

MAINTAINING YOUR VEHICLE 373

CAUTION!

Damage to the catalytic converter can result if your vehicle is not kept in proper operating condition. In the event of engine malfunction, particularly involv- ing engine misfire or other apparent loss of perfor- mance, have your vehicle serviced promptly. Contin- ued operation of your vehicle with a severe malfunction could cause the converter to overheat, resulting in possible damage to the converter and vehicle.

374 MAINTAINING YOUR VEHICLE

WARNING!

A hot exhaust system can start a fire if you park over materials that can burn. Such materials might be grass or leaves coming into contact with your exhaust system. Do not park or operate your vehicle in areas where your exhaust system can contact anything that can burn.

In unusual situations involving grossly malfunctioning engine operation, a scorching odor may suggest severe and abnormal catalyst overheating. If this occurs, stop the vehicle, turn off the engine and allow it to cool. Service, including a tune up to manufacturer’s specifica- tions, should be obtained immediately. To minimize the possibility of catalytic converter dam- age:

vehicle.

• Do not shut off the engine or interrupt the ignition when the transmission is in gear and the vehicle is in motion. • Do not try to start the engine by pushing or towing the • Do not idle the engine with any spark plug wires disconnected or removed, such as when diagnostic testing. • Do not idle the engine for prolonged periods during very rough idle or malfunctioning operating condi- tions.

• Do not allow vehicle to run out of fuel. NOTE: systems can result against you.

Intentional tampering with emissions control in civil penalties being assessed

Crankcase Emission Control System Proper operation of this system depends on freedom from sticking or plugging due to deposits. As vehicle mileage builds up, the PCV valve and passages may accumulate deposits. If a valve is not working properly, replace it with a new valve. DO NOT ATTEMPT TO CLEAN THE OLD PCV VALVE! Check ventilation hose for indication of damage or plugging deposits. Replace if necessary. Fuel Filter A plugged fuel filter can cause hard starting or limit the speed at which a vehicle can be driven. Should an excessive amount of dirt accumulate in the fuel tank, frequent replacement of the fuel filter which is mounted in the fuel tank may be necessary.

MAINTAINING YOUR VEHICLE 375

Engine Air Cleaner Filter Under normal driving conditions, replace the air filter at the intervals shown on “Maintenance Schedule A.” If, however, you drive the vehicle frequently under dusty or severe conditions, the filter element should be inspected periodically and replaced if necessary at the intervals shown on “Maintenance Schedule B.”

WARNING!

The air cleaner can provide protection in the case of engine backfire. Do not remove the air cleaner unless it is necessary for repair or maintenance. Make sure that no one is near the engine compartment before starting the vehicle with the air cleaner removed. Failure to do so can result in serious personal injury.

376 MAINTAINING YOUR VEHICLE

Maintenance-Free Battery Your vehicle is equipped with a maintenance-free battery. You will never have to add water, nor is periodic main- tenance required.

WARNING!

Battery posts, terminals, and related accessories con- tain lead and lead compounds. Always wash hands after handling the battery.

CAUTION!

It is essential when replacing the cables on the battery that the positive cable is attached to the positive post and the negative cable is attached to the negative post. Battery posts are marked (+) positive and negative (-) and identified on the battery case. Also, if a “fast charger” is used while battery is in the vehicle, disconnect both vehicle battery cables before connecting the charger to battery. Do not use a “fast charger” to provide starting voltage.

Air Conditioner Maintenance For best possible performance, your air conditioner should be checked and serviced by an Authorized Dealer at the start of each warm season. This service should

include cleaning of the condenser fins and a performance test. Drive belt tension should also be checked at this time.

WARNING!

• Use only refrigerants and compressor lubricants approved by the manufacturer for your air condi- tioning system. Some unapproved refrigerants are flammable and can explode, injuring you. Other unapproved refrigerants or lubricants can cause the system to fail, requiring costly repairs. Refer to Section 3 of the Warranty Information Book for additional warranty information. • The air conditioning system contains refrigerant under high pressure. To avoid risk of personal injury or damage to the system, adding refrigerant or any repair requiring lines to be disconnected should be done by an experienced repairman.

MAINTAINING YOUR VEHICLE 377

Refrigerant Recovery and Recycling R-134a Air Conditioning Refrigerant is a hydrofluorocar- bon (HFC) that is endorsed by the Environmental Pro- tection Agency and is an ozone-saving product. How- ever, the manufacturer recommends that air conditioning service be performed by dealers or other service facilities using recovery and recycling equipment. Power Steering Fluid Check Checking the power steering fluid level at a defined service interval is not required. The fluid should only be checked if a leak is suspected, abnormal noises are apparent, and/or the system is not functioning as antici- pated. Coordinate inspection efforts through a certified DaimlerChrysler Dealership.⬙

378 MAINTAINING YOUR VEHICLE

WARNING!

Fluid level should be checked on a level surface with the engine off to prevent injury from moving parts, and to insure accurate fluid level reading. Do not overfill. Use only the manufacturer’s recommended fluid.

If necessary, add fluid to restore to the proper indicated level. With a clean cloth, wipe any spilled fluid from all surfaces. Refer to Fluids, Lubricants, and Genuine Parts for correct fluid type. NOTE: Upon initial start-up in cold weather, the power steering pump may make noise for a short period of time. This is due to the cold, thick fluid in the steering system. This noise should be considered normal, and does not in any way damage the steering system.

Driveline And Steering Component Lubrication All driveline and steering components are sealed and do not require lubrication. Driveshafts are not serviceable. Body Lubrication Locks and all body pivot points, including such items as seat tracks, doors, tailgate and hood hinges, should be lubricated periodically to assure quiet, easy operation and to protect against rust and wear. Prior to the appli- cation of any lubricant, the parts concerned should be wiped clean to remove dust and grit; after lubricating excess oil and grease should be removed. Particular attention should also be given to hood latching compo- nents to insure proper function. When performing other underhood services, the hood latch, release mechanism and safety catch should be cleaned and lubricated. The external lock cylinders should be lubricated twice a year, preferably in the fall and spring. Apply a small

amount of a high quality lubricant such as Mopar威 Lock Cylinder Lubricant directly into the lock cylinder. Windshield Wiper Blades Clean the rubber edges of the wiper blades and the windshield periodically with a sponge or soft cloth and a mild non-abrasive cleaner. This will remove accumula- tions of salt or road film. Operation of the wipers on dry glass for long periods may cause deterioration of the wiper blades. Always use washer fluid when using the wipers to remove salt or dirt from a dry windshield. Avoid using the wiper blades to remove frost or ice from the windshield. Keep the blade rubber out of contact with petroleum products such as engine oil, gasoline, etc.

MAINTAINING YOUR VEHICLE 379

Windshield Washers The fluid reservoir in the engine compartment should be checked for fluid level at regular intervals. Fill the reservoir with windshield antifreeze (not radiator anti- freeze) rated not to freeze at -25°F (-31°C). Operate the system for a few seconds to flush out the residual water.

WARNING!

Commercial windshield washer solvents are flam- mable. They could ignite and burn you. Care must be exercised when filling or working around the washer solution.

380 MAINTAINING YOUR VEHICLE

Exhaust System The best protection against carbon monoxide entry into the vehicle body is a properly maintained engine exhaust system. If you notice a change in the sound of the exhaust system; or if the exhaust fumes can be detected inside the vehicle; or when the underside or rear of the vehicle is damaged; have an authorized technician inspect the complete ex- haust system and adjacent body areas for broken, dam- aged, deteriorated, or mispositioned parts. Open seams or loose connections could permit exhaust fumes to seep into the passenger compartment. In addition, inspect the exhaust system each time the vehicle is raised for lubri- cation or oil change. Replace as required.

Cooling System

WARNING!

You or others can be badly burned by hot antifreeze/ coolant or steam from your radiator. If you see or hear steam coming from under the hood, don’t open the hood until the radiator has had time to cool. Never try to open a cooling system pressure cap when the radiator or coolant bottle is hot.

Engine Coolant Checks Check antifreeze/coolant protection every 12 months (before the onset of freezing weather, where applicable). If antifreeze/coolant is dirty or rusty in appearance, the system should be drained, flushed and refilled with fresh antifreeze/coolant. Check the front of the A/C condenser (if equipped) or radiator for any accumulation of bugs, leaves, etc. If dirty, clean by gently spraying water from a

garden hose vertically down the face of the A/C con- denser (if equipped) or the back of the radiator core. Check the engine cooling system hoses for brittle rubber, cracking, tears, cuts, and tightness of the connection at the coolant recovery bottle and radiator. Inspect the entire system for leaks. With the engine at normal operating temperature (but not running), check the cooling system pressure cap for proper vacuum sealing by draining a small amount of antifreeze/coolant from the radiator drain cock. If the cap is sealing properly, the antifreeze/coolant will begin to drain from the coolant recovery bottle. DO NOT RE- MOVE THE COOLANT PRESSURE CAP WHEN THE COOLING SYSTEM IS HOT.

MAINTAINING YOUR VEHICLE 381

Cooling System — Drain, Flush, And Refill At the intervals shown in the appropriate “Maintenance Schedule,” the system should be drained, flushed, and refilled. If the solution is dirty and contains a considerable amount of sediment, clean and flush with reliable cooling system cleaner. Follow with a thorough rinsing to remove all deposits and chemicals. Properly dispose of old antifreeze/coolant solution. Discard old antifreeze/coolant solution according to rec- ommended procedure. Selection Of Engine Coolant Use only the manufacturer’s recommended antifreeze/ coolant, refer to Fluids, Lubricants, and Genuine Parts for correct antifreeze/coolant type.

382 MAINTAINING YOUR VEHICLE

CAUTION!

• Mixing of antifreeze/coolant other than the speci- fied HOAT antifreeze/coolant may result in de- creased corrosion protection and engine damage. If a non-HOAT antifreeze/coolant is introduced into the cooling system in an emergency, it should be replaced with the specified antifreeze/coolant as soon as possible. • Do not use plain water alone or alcohol base antifreeze/coolant products. Do not use additional rust inhibitors or antirust products, as they may not be compatible with the antifreeze/coolant and may plug the radiator. • This vehicle has not been designed for use with Propylene Glycol based antifreeze/coolant. Use of Propylene Glycol base antifreeze/coolant is not recommended.

Adding Engine Coolant Your vehicle has been built with an improved antifreeze/ coolant that allows extended maintenance intervals. This antifreeze/coolant can be used up to 5 Years or 100,000
miles before replacement. To prevent reducing this ex- tended maintenance period, it is important that you use the same antifreeze/coolant throughout the life of your vehicle. Please review these recommendations for using Hybrid Organic Additive (HOAT) antifreeze/coolant. When adding antifreeze/coolant, a minimum solution of 50% recommended Mopar Antifreeze/ Coolant 5 Year/ 100,000 Mile Formula HOAT (Hybrid Organic Additive Technology), or equivalent, in water should be used. Use higher concentrations (not to exceed 70%) if temperatures below -34°F (-37°C) are anticipated.

Technology

Use only high purity water such as distilled or deionized water when mixing the water/antifreeze (coolant) solu- tion. The use of lower quality water will reduce the amount of corrosion protection in the engine cooling system. Please note that it is the owner’s responsibility to main- tain the proper level of protection against freezing ac- cording to the temperatures occurring in the area where the vehicle is operated. NOTE: Mixing antifreeze/coolant types will decrease the life of the antifreeze/coolant and will require more frequent antifreeze/coolant changes. Cooling System Pressure Cap The cap must be fully tightened to prevent loss of antifreeze/coolant, and to insure that antifreeze/coolant will return to the radiator from the coolant reserve tank.

MAINTAINING YOUR VEHICLE 383

The cap should be inspected and cleaned if there is any accumulation of foreign material on the sealing surfaces.

WARNING!

The warning words DO NOT OPEN HOT on the cooling system pressure cap are a safety precaution. Never add antifreeze/coolant when the engine is overheated. Do not loosen or remove the cap to cool an overheated engine. Heat causes pressure to build up in the cooling system. To prevent scalding or injury, do not remove the pressure cap while the system is hot or under pressure.

Disposal of Used Engine Coolant Used ethylene glycol based antifreeze/coolant is a regu- lated substance requiring proper disposal. Check with your local authorities to determine the disposal rules for your community. To prevent ingestion by animals or

384 MAINTAINING YOUR VEHICLE

children, do not store ethylene glycol based antifreeze/ coolant in open containers or allow it to remain in puddles on the ground. If ingested by a child, contact a physician immediately. Clean up any ground spills im- mediately. Engine Coolant Level The coolant bottle provides a quick visual method for determining that the coolant level is adequate. With the engine idling, and warm to normal operating tempera- ture, the level of the antifreeze/coolant in the bottle should be between the ranges indicated on the bottle. The radiator normally remains completely full, so there is not need to remove the radiator cap unless checking for antifreeze/coolant freeze point or replacing antifreeze/ coolant. Advise your service attendant of this. As long as the engine operating temperature is satisfactory, the coolant bottle need only be checked once a month.

When additional antifreeze/coolant is needed to main- tain the proper level, it should be added to the coolant bottle. Do not overfill. Points To Remember NOTE: When the vehicle is stopped after a few miles of operation, you may observe vapor coming from the front of the engine compartment. This is normally a result of moisture from rain, snow, or high humidity accumulat- ing on the radiator and being vaporized when the thermostat opens, allowing hot antifreeze/coolant to enter the radiator. If an examination of your engine compartment shows no evidence of radiator or hose leaks, the vehicle may be safely driven. The vapor will soon dissipate. • Do not overfill the coolant bottle. • Check antifreeze/coolant freeze point in the radiator and in the coolant recovery bottle. If antifreeze/

coolant needs to be added, contents of coolant recov- ery bottle must also be protected against freezing. • If frequent antifreeze/coolant additions are required, or if the level in the recovery bottle does not drop when the engine cools, the cooling system should be pressure tested for leaks. • Maintain antifreeze/coolant concentration at 50% HOAT antifreeze/coolant (minimum) and distilled water for proper corrosion protection of your engine which contains aluminum components. • Make sure that the radiator and coolant recovery • Keep the front of the radiator clean. If your vehicle is equipped with air conditioning, keep the front of the condenser clean, also. • Do not change the thermostat for summer or winter install

operation. If replacement is ever necessary,

bottle hoses are not kinked or obstructed.

MAINTAINING YOUR VEHICLE 385

ONLY the correct type thermostat. Other designs may result in unsatisfactory cooling performance, poor gas mileage, and increased emissions.

Hoses and Vacuum/Vapor Harnesses Inspect surfaces of hoses and nylon tubing for evidence of heat and mechanical damage. Hard or soft spots, brittle rubber, cracking, tears, cuts, abrasions, and exces- sive swelling indicate deterioration of the rubber. Pay particular attention to the hoses nearest to high heat sources such as the exhaust manifold. Inspect hose rout- ing to be sure hoses do not touch any heat source or moving component that may cause heat damage or mechanical wear. Insure nylon tubing in these areas has not melted or collapsed. Inspect all hose connections such as clamps and couplings to make sure they are secure and no leaks

386 MAINTAINING YOUR VEHICLE

are present. Components should be replaced immedi- ately if there is any evidence of degradation that could cause failure. Brake System In order to assure brake system performance, all brake system components should be inspected periodically. Refer to the appropriate “Maintenance Schedule” in Section 8 for suggested service intervals.

WARNING!

Riding the brakes can lead to brake failure and possibly an accident. Driving with your foot resting or riding on the brake pedal can result in abnormally high brake temperatures, excessive lining wear, and possible brake damage. You wouldn’t have your full braking capacity in an emergency.

Brake and Power Steering System Hoses When servicing the vehicle for scheduled maintenance, inspect surface of hoses for evidence of heat and me- chanical damage. Hard and brittle rubber, cracking, tears, cuts, abrasion, and excessive swelling suggest deteriora- tion of the rubber. Particular attention should be made to examining those hose surfaces nearest to high heat sources, such as the exhaust manifold. Inspect all hose clamps and couplings to make sure they are secure and no leaks are present. Inspection of brake hoses should be done when- NOTE: ever the brake system is serviced and every engine oil change.

WARNING!

Worn brake hoses can burst and cause brake failure. You could have an accident. If you see any signs of cracking, scuffing, or worn spots, have the brake hoses replaced immediately.

Brake Master Cylinder The fluid level in the master cylinder should be checked when performing under hood services, or immediately if the BRAKE warning light shows system failure Be sure to clean the top of the master cylinder area before removing the cap. If necessary, add fluid to bring the fluid level up to the requirements described on the brake fluid reservoir. With disc brakes, fluid level can be expected to fall as the brake pads wear. Brake fluid level

MAINTAINING YOUR VEHICLE 387

should be checked when pads are replaced. However, low fluid level may be caused by a leak and a checkup may be needed. Use only manufacturer’s recommended brake fluid, refer to Fluids, Lubricants, and Genuine Parts for correct fluid type.

WARNING!

• Use of a brake fluid that may have a lower initial boiling point or unidentified as to specification, may result in sudden brake failure during hard prolonged braking. You could have an accident. • Overfilling the brake fluid reservoir can result in spilling brake fluid on hot engine parts and the brake fluid catching fire.

388 MAINTAINING YOUR VEHICLE

Use only brake fluid that has been in a tightly closed container to avoid contamination from foreign matter. Do not allow petroleum base fluid to contaminate the brake fluid as seal damage will result. Automatic Transmission

Selection of Lubricant It is important that the proper lubricant is used in the transmission to assure optimum transmission perfor- mance. Use only manufacturer’s recommended transmis- sion fluid, refer to Fluids, Lubricants, and Genuine Parts for correct fluid type. It is important that the transmission fluid be maintained at the prescribed level using the recommended fluid.

CAUTION!

Using a transmission fluid other than the manufac- turer’s recommended fluid may cause deterioration in transmission shift quality and/or torque converter shudder. Using a transmission fluid other than the manufacturer’s recommended fluid will result in more frequent fluid and filter changes. Refer to Fluids, Lubricants, and Genuine Parts for correct fluid type.

Fluid Level Check — 42RLE

If equipped with a dipstick, use the following NOTE: procedure. If your vehicle has a capped dipstick tube, it is sealed and should not be tampered with. Your autho- rized dealer has the proper tools to ensure that the fluid level is set properly.

Check the fluid level while the transmission is at normal operating temperature 180° F (82° C). This occurs after at least 15 mi (25 km) of driving. At normal operating temperature the fluid cannot be held comfortably be- tween the fingertips. To properly check the automatic transmission fluid level, the following procedure must be used: 1. Operate the engine at idle speed and normal operating temperature. 2. The vehicle must be on level ground. 3. Fully apply parking brake. 4. Place the gear selector momentarily in each gear position ending with the lever in P (Park). 5. Remove the dipstick, wipe it clean and reinsert it until seated.

MAINTAINING YOUR VEHICLE 389

6. Remove the dipstick again and note the fluid level on both sides. The fluid level should be between the HOT (upper) reference holes on the dipstick at normal operat- ing temperature. Verify that a solid coating of oil is seen on both sides of the dipstick. If the fluid is low, add as required into the dipstick tube. Do not overfill. After adding any quantity of oil through the dipstick tube, wait a minimum of two (2) minutes for the oil to fully drain into the transmission before rechecking the fluid level. If it is necessary to check the transmission below NOTE: the operating temperature, the fluid level should be between the two cold (lower) holes on the dipstick with the fluid at approximately 70° F (21° C) (room tempera- ture). If the fluid level is correctly established at room temperature, it should be between the HOT (upper) reference holes when the transmission reaches 180° F (21° C). Remember it is best to check the level at the normal operating temperature.

390 MAINTAINING YOUR VEHICLE

CAUTION!

Be aware that if the fluid temperature is below 50° F (10° C), it may not register on the dipstick. Do not add fluid until the temperature is elevated enough to produce an accurate reading.

7. Check for leaks. Release the parking brake. NOTE: To prevent dirt and water from entering the transmission after checking or replenishing fluid, make certain that the dipstick cap is properly reseated. It is normal for the dipstick cap to spring back slightly from its fully seated positions, as long as its seal remains engaged in the dipstick tube.

Special Additives The manufacturer strongly recommends against the ad- dition of any additives to the transmission. The only exception to this policy is the use of special dyes to aid in detecting fluid leaks. The use of transmission sealers should be avoided as they may adversely affect seals. Hydraulic Clutch Fluid — Manual Transmission The clutch hydraulic system is a sealed maintenance free system. In the event of leakage or other malfunction, the system must be replaced. Manual Transmission

Selection of Lubricant Use only manufacturer’s recommended manual trans- mission fluid, refer to Fluids, Lubricants, and Genuine Parts for correct fluid type.

Fluid Level Check Check the fluid level by removing the fill plug. The fluid level should be between the bottom of the fill hole and a point not more than 3/16” (4.76 mm) below the bottom of the hole. Add fluid, if necessary, to maintain the proper level. Frequency of Fluid Change Under normal operating conditions, the fluid installed at the factory will give satisfactory lubrication for the life of the vehicle. Fluid changes are not necessary unless the lubricant has become contaminated with water. If con- taminated with water, the fluid should be changed im- mediately.

MAINTAINING YOUR VEHICLE 391

Transfer Case

Fluid Level Check The fluid level should be to the bottom edge of the fill hole (A) when the vehicle is in a level position.

392 MAINTAINING YOUR VEHICLE

Adding Fluid Fluid should be added only at filler hole until fluid begins to run out of the hole. Drain First remove fill plug (B), then drain plug (C). Recom- mended tightening torque for drain and fill plugs is 15–25 ft.lbs. (20–34 N·m).

CAUTION!

When replacing plugs, do not overtighten. You could damage them and cause them to leak.

Selection of Lubricant Use only manufacturer’s recommended fluid, refer to Fluids, Lubricants, and Genuine Parts for correct fluid type.

Front/Rear Axle Fluid

Fluid Level Check Lubricant should be at bottom edge of the oil fill hole. Adding Fluid Add lubricant only at the fill hole and only to the level specified above. Selection of Lubricant Use only manufacturer’s recommended fluid, refer to Fluids, Lubricants, and Genuine Parts for correct fluid type. Maintenance After Off-Road Driving After extended operation in mud, sand or water, or similar dirty conditions, have your brake drums, brake linings, and axle joints inspected and cleaned as soon as possible. This will prevent any abrasive material from causing excessive wear or unpredictable braking action.

Following off-road usage, completely inspect the under- body of your vehicle. Check tires, body structure, steer- ing, suspension and exhaust system for damage. Check threaded fasteners for looseness, particularly on the chassis, drivetrain components, steering and suspension. Retighten, if required, to torque values specified in the Service Manual. Also check for accumulations of vegeta- tion or brush that could become a fire hazard, or conceal damage to fuel lines, brake hoses, axle pinion seals, and propeller shafts. Check air conditioning drain tube on the lower dash wall in the engine compartment for mud or debris, and clean as required. A plugged tube will adversely affect air conditioning performance.

MAINTAINING YOUR VEHICLE 393

CAUTION!

Under frequent heavy-duty driving conditions, change all lubricants, and lubricate body compo- nents more often than in normal service to prevent excessive wear.

Appearance Care And Protection From Corrosion

Protection Of Body And Paint From Corrosion Vehicle body care requirements vary according to geo- graphic locations and usage. Chemicals that make roads passable in snow and ice, and those that are sprayed on trees and road surfaces during other seasons, are highly corrosive to the metal in your vehicle. Outside parking, which exposes your vehicle to airborne contaminants, road surfaces on which the vehicle is operated, extreme

394 MAINTAINING YOUR VEHICLE

hot or cold weather and other extreme conditions will have an adverse effect on paint, metal trim, and under- body protection. The following maintenance recommendations will enable you to obtain maximum benefit from the corrosion resistance built into your vehicle. What Causes Corrosion? Corrosion is the result of deterioration or removal of paint and protective coatings from your vehicle. The most common causes are: • Road salt, dirt and moisture accumulation. • Stone and gravel impact. • Insects, tree sap and tar. • Salt in the air near sea-coast localities. • Atmospheric fallout/industrial pollutants.

• Bird droppings. Washing • Wash your vehicle regularly. Always wash your ve- hicle in the shade using Mopar威 Car Wash or a mild car wash soap, and rinse the panels completely with clear water. • If insects, tar, or other similar deposits have accumu- lated on your vehicle, use Mopar威 Super Kleen Bug and Tar Remover to remove. • Use Mopar威 Cleaner Wax to remove road film, stains, and to protect your paint finish. Take care never to scratch the paint. • Avoid using abrasive compounds and power buffing that may diminish the gloss or thin out the paint finish.

CAUTION!

Do not use abrasive or strong cleaning materials such as steel wool or scouring powder, which will scratch metal and painted surfaces.

Special Care • If you drive on salted or dusty roads or if you drive near the ocean, hose off the undercarriage at least once a month. • It is important that the drain holes in the lower edges of the doors, rocker panels and tailgate must be kept clear and open. • If you detect any stone chips or scratches in the paint, touch them up immediately. The cost of such repairs is considered the responsibility of the owner.

MAINTAINING YOUR VEHICLE 395

• If your vehicle is damaged due to an accident or similar cause which destroys the paint and protective coating have your vehicle repaired as soon as possible. The cost of such repairs is considered the responsibil- ity of the owner. • If you carry special cargo such as chemicals, fertilizers, de-icer salt, etc., assure that such materials are well packaged and sealed. • If a lot of driving is done on gravel roads, consider • Use Mopar威 Touch Up Paint on scratches or chips as soon as possible. Your authorized dealer has touch up paint to match the color of your vehicle.

mud or stone shields behind each wheel.

396 MAINTAINING YOUR VEHICLE

Wheel and Wheel Trim Care All wheels and wheel trim, especially aluminum and chrome plated wheels should be cleaned regularly with a mild soap and water to prevent corrosion. To remove heavy soil, use Mopar威 Wheel Cleaner or select a non- abrasive, non-acidic cleaner. Do not use scouring pads, steel wool, a bristle brush or metal polishes. Only Mo- par威 cleaners are recommended. Do not use oven cleaner. Avoid automatic car washes that use acidic solutions or harsh brushes that may damage the wheels’ protective finish. YES Essentials威 Fabric Cleaning Procedure – If Equipped YES Essentials威 seats may be cleaned in the following manner: • Remove as much of the stain as possible by blotting • Blot any remaining stain with a clean, damp towel.

with a clean, dry towel.

• For tough stains, apply Mopar威 Total Clean or a mild soap solution to a clean, damp cloth and remove stain. Use a fresh, damp towel to remove soap residue. • For grease stains, apply Mopar威 Multi-Purpose Cleaner to a clean, damp cloth and remove stain. Use a fresh, damp towel to remove soap residue. • Do not use any solvents or protectants on Yes Essen-

tials威 products.

Interior Care Use Mopar威 Total Clean to clean fabric upholstery and carpeting. Interior Trim should be cleaned starting with a damp cloth, a damp cloth with Mopar威 Total Clean, then Mopar威 Spot & Stain Remover if absolutely necessary. Do not use harsh cleaners or Armorall. Use Mopar威 Total Clean to clean vinyl upholstery.

WARNING!

Do not use volatile solvents for cleaning purposes. Many are potentially flammable, and if used in closed areas they may cause respiratory harm.

Glass Surfaces All glass surfaces should be cleaned on a regular basis with Mopar威 Glass Cleaner or any commercial household-type glass cleaner. Never use an abrasive type cleaner. Use caution when cleaning inside rear windows equipped with electric defrosters. Do not use scrapers or other sharp instruments which may scratch the elements. When cleaning the rear view mirror, spray cleaner on the towel or rag that you are using. Do not spray cleaner directly on the mirror.

MAINTAINING YOUR VEHICLE 397

Cleaning Plastic Instrument Cluster Lenses The lenses in front of the instruments in this vehicle are molded in clear plastic. When cleaning the lenses, care must be taken to avoid scratching the plastic. 1. Clean with a wet soft rag. A mild soap solution may be used, but do not use high alcohol content or abrasive cleaners. If soap is used, wipe clean with a clean damp rag. 2. Dry with a soft tissue. Seat Belt Maintenance Do not bleach, dye or clean the belts with chemical solvents or abrasive cleaners. This will weaken the fabric. Sun damage will also weaken the fabric. If the belts need cleaning, use Mopar威 Total Clean, a mild soap solution, or lukewarm water. Do not remove the belts from the vehicle to wash them.

398 MAINTAINING YOUR VEHICLE

Replace the belts if they appear frayed or worn or if the buckles do not work properly. Appearance Care For Fabric Top Models

CAUTION!

To maintain the appearance of your vehicle’s interior trim and top, follow these precautions:

• Avoid leaving your vehicle unattended with the top down, as exposure to sun or rain may damage interior trim. • Do not use harsh cleaners or bleaching agents on top • Do not allow any vinyl cleaner to run down and dry

material, as damage may result.

on the paint, leaving a streak.

sure it is completely dry before lowering.

• After cleaning your vehicle’s fabric top, always make • Be especially careful when washing the windows by following the directions for “Care of Fabric Top Win- dows.”

WASHING — Use Mopar威 Car Wash or mild soap suds, lukewarm water, and a brush with soft bristles. If extra cleaning is required, use Mopar威 Convertible Cloth Top Cleaner or a mild foaming cleaner on the entire top, but support top from underneath. RINSING — Be sure to remove all trace of cleaner by rinsing the top thoroughly with clean water. Remember to allow the top to dry before lowering it.

Care Of Fabric Top Windows

CAUTION!

Your vehicle’s fabric top has pliable plastic windows which can be scratched unless special care is taken by following these directions:

1. Never use a dry cloth to remove dust. Instead, use a microfiber towel or soft cotton cloth moistened with cold or warm, clean water, and wipe across the window, not up and down. Mopar威 Jeep Soft Glass Window Cleaner will safely clean all plastic windows without scratching. Removes fine scratches to improve visibility and provide UV protection to help prevent yellowing. 2. When washing, never use hot water or anything stronger than a mild soap. Never use solvents such as alcohol or harsh cleaning agents.

MAINTAINING YOUR VEHICLE 399

3. Always rinse thoroughly with cold water, then wipe with a soft and slightly moist, clean cloth. 4. When removing frost, snow or ice, never use a scraper or de-icing chemicals. Use warm water only if you must clean the window quickly. 5. Debris (sand, mud/dirt, dust, or salt) from off-road driving will have a major impact on zipper operation. Even normal on-road driving and vehicle washing will eventually impact window zipper operation. To maintain ease of use of the window zippers, each window zipper should be cleaned and lubricated regularly. Use Mopar威 Soft Top Zipper Cleaner and Lubricant to ease zipper operation. Before applying, make sure the zipper teeth are clear of sand, mud, and other materials. Clean both sides of the zipper, not just one side. Rinse both zipper halves with fresh water and allow to dry. Aggressively work the Mopar威 Soft Top Zipper Cleaner and Lubricant

400 MAINTAINING YOUR VEHICLE

into the zipper teeth. If a stuck zipper slide is experi- enced, work the Mopar威 Soft Top Zipper Cleaner and Lubricant into the zipper slide. Several applications may be required before the zipper comes free. 6. Never paste stickers, gummed labels or any tape to the windows. Adhesives are hard to remove and may dam- age the windows.

FUSES (TOTALLY INTEGRATED POWER MODULE) The Totally Integrated Power Module (TIPM) is located in the engine compartment near the battery. This center contains cartridge fuses, mini fuses and relays. A label that identifies each component is printed on the inside of the cover.

Integrated Power Module (TIPM)

Cavity Cartridge

Cavity Cartridge

Fuse 40 Amp Green 30 Amp Pink 40 Amp Green 25 Amp Natural 25 Amp Natural 40 Amp Green 30 Amp Pink 40 Amp Green

Mini Fuse

Description

Power Folding Seat

Transfer Case/Pwr Liftgate Module Rear Door Module (RR DOOR NODE) Driver Door Node

Passenger Door Node

Anti-Lock Brake Sys- tem (ABS) Pump/ESP Anti-Lock Brake Sys- tem (ABS) Valve/ESP Power Memory Seat (If Equipped)

J9

J10

J11

J13

J14

J15

J17

J1

J2

J3

J4

J5

J6

J7

J8

Fuse 40 Amp Green 30 Amp Pink

30 Amp Pink

60 Amp Yellow 40 Amp Green 30 Amp Pink 40 Amp Green

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Mini Fuse

Description

PZEV Motor/Flex Fuel Headlamp Wash Relay/Manual Tuning Valve Sway Bar/ THATCHAM Lock- Unlock/Power Slid- ing Door Module Ignition Off Draw (IOD) — Main EBL (Rear Window Defogger) Rear Blower

Starter Solenoid

Cavity Cartridge

Mini Fuse

Description

Cavity Cartridge

Fuse

402 MAINTAINING YOUR VEHICLE

J18

J19

J20

J21

J22

M1

M2

Fuse 20 Amp Yellow

60 Amp Yellow 30 Amp Pink 20 Amp Yellow 25 Amp Natural

15 Amp Blue