1996 GMC Savana Owners Manual

Remove the hood prop from the slot in the hood and return the prop to its retainer. Then just let the hood down and close it firmly. Noise Control System The following information relates to compliance with Federal noise emission standards for vehicles with a Gross Vehicle Weight Rating (GVWR) of more than 10,000 lbs. (4 536 kg). The Maintenance Schedule booklet provides information on maintaining the noise control system to minimize degradation of the noise emission control system during the life of your vehicle. The noise control system warranty is given in your Warranty booklet. These standards apply only to vehicles sold in the United States.

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Tampering With Noise Control System Prohibited Federal law prohibits the following acts or the causing thereof: 1. The removal or rendering inoperative by any person,

other than for purposes of maint,enance, repair or replacement, of any device 01- element of design incorporated into any new vehicle for the purpose of noise control, prior to its sale or delivery to the ultimate purclwser or while it is i n use; or

2. The use of the vehicle after S L I C ~ device or element of design has been removed or rendered inoperative by any person.

Among those acts presumed to constitute tampering are the acts listed below. insulation: 0 Removal o f noise shields or underhood insulation.

Engine:

Removal or rendering engine speed governor (if so equipped) inoperative so a s to allow engine speed to exceed manufrtctureer specifications.

Fan and Drive:

Removal of fan clutch (if so equipped) or rendering clutch inoperative.

0 Removal of fan shroud (if so equipped). Air Intake:

0 Reversing air cleaner cover. Exhaust:

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Engine Oil (Gasoline Engine) If your vehicle has a diesel engine, see “Engine Oil (Diesel Engine)” in the Diesel Engine Supplement. It‘s a good idea to check your engine oil every time you c‘ Get fuel. In order to get an accurate reading, the oil must be warm and the vehicle must be on level ground.

Turn off the engine and give the oil a few minutes to drain back into the oil pan. If you don’t, the oil dipstick might not show the actual level.

When to Add Oil If the o i l is at or below the ADD mark, then ~011’11 need to add some oil. But you must use the right kind. This part explains what kind of oil to use. For crankcase capacity, see “Capacities and Specifications” i n the Index.

NOTICE:

Checking Engine Oil Pull out the dipstick and clean it with a paper towel or cloth, then push it back i n all the way. Remove it again, keeping the tip down, and check the level.

Don’t add too much oil. If your engine has so much oil that the oil level gets above the upper mark that shows the proper operating range, your engine could be damaged.

What Kind of Oil to Use Oils recommended for your vehicle can be identified by looking for the ”Starburst” symbol. This symbol indicates that the oil has been certified by the American Petroleum Institute (API). Do not use any oil which does not carry this Starburst symbol.

If you change your own oil, be sure you use oil that has the Starburst symbol on the front of the oil container. If you have your oil changed for you, be sure the oil put into your engine is American Petroleum Institute certified for gasoline engines.

You should also use the proper viscosity oil for your vehicle, as shown in the following chart:

The engine oil filler cap is located between the air cleaner and engine oil dipstick. Just fill it enough to put the level somewhere in the proper operating range. Push the dipstick all the way back in when you’re through.

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RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS

FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE RANGE.

LOOK FOR THIS SYMBOL

HOT

WEATHER

1 +27 +38

COLD

WEATHER

DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED

As shown in the chart, SAE 5W-30 is best for your vehicle. However, you can use SAE ]OW-30 if it’s going to be 0°F (- 18°C) or above. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils, such as SAE 20W-50.

NOTICE:

Use only engine oil with the American Petroleum Institute Certified For Gasoline Engines LcStarbur~t” symbol. Failure to use the recommended oil can result in engine damage not covered by your warranty.

GM Goodwrench@ oil meets all the requirements for your vehicle. Engine Oil Additives Don‘t add anything to your oil. Your GM dealer is ready to advise if you think something should be added.

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What to Do with Used Oil Did you know that used engine oil contains certain elements that may be unhealthy for your skin and could even cause cancer'? Don't let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner. Wash or properly throw away clothing or rags containing used engine oil. (See the manufacturer's warnings about the use and disposal of oil products.) Used oil can be a real threat to the environment. If you change your own oil, be sure to drain all free-flowing oil from the filter before disposal. Don't ever dispose of oil by putting it i n the trash, pouring it on the ground, into sewers, or into streams or bodies of water. Instead, recycle it by taking it to a place that collects used oil. If you have a problem properly disposing of your used oil, ask your dealer, a service station or a local recycling center for help.

When to Change Engine Oil See if any one of these is true for you:

Most trips are less than 5 to 10 miles (8 to 16 km). This is particularly important when outside temperatures are below freezing. Most trips include extensive idling (such as frequent driving in stop-and-go traffic). Most trips are through dusty areas. You frequently tow a trailer or use a carrier on top of your vehicle. The vehicle is used for delivery service, police, taxi or other commercial application.

Driving under these conditions causes engine oil to break down sooner. If any one of these is true for your vehicle, then you need to change your oil and filter every 3,000 miles ( 5 000 km) or 3 months -- whichever occurs first. If none of them is true, change the oil and filter every 7,500 miles (1 2 SO0 km) or 12 months -- whichever occurs first. Driving a vehicle with a fully warnled engine under highway conditions causes engine oil to break down slower.

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Air Cleaner

Refer t o the Maintenance Schedule to determine when to replace the air filter and crankcase ventilation filter. See “Scheduled Maintenance Services’‘ in the Index.

,.?

To remove the air cleaner filter:

loosen screw bolt to air induct hose

0 remove the three bolts

remove the f ~ d l air cleaner housing unsnap the three clips

Then tilt the top cover up and back to expose the filter element. Install a new filter element with the folds i n the down position. See “Normal Replacement Parts” for the proper filter to use.

Operating the engine with the air cleaner off can cause you or others to be burned. The air cleaner not only cleans the air, it stops flame if the engine backfires. If it isn’t there, and the engine backfires, you could be burned. Don’t drive with it off, and be careful working on the engine with the air cleaner off.

1 NOTICE:

If the air cleaner is off, a backfire can cause a damaging engine fire. And, dirt can easily get into your engine, which will damage it. Always have the air cleaner in place when you’re driving.

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~

’

n to Check and Change

Automatic Transmission Fluid A good time to check your automatic transmission fluid level is when the engine oil is changed. Change both the fluid and filter every 50,000 miles (83 000 km) if the vehicle’s GVWR is over 8,600 or if the vehicle is mainly driven under one or more of these conditions: 0 In heavy city traffic where the outside temperature

regularly reaches 90°F (32°C) or higher.

0 In hilly or mountainous terrain. 0 When doing frequent trailer towing. 0 Uses such as found in taxi, police or delivery service. If your vehicle’s GVWR is not over 8,600 and you do not use your vehicle under any of these conditions, the fluid and filter do not require changing. See “Scheduled Maintenance Services” i n the Index.

How to Check Because this operation can be a little difficult, you may choose to have this done at your GM dealer Service Department. If you do it yourself, be sure to follow all the instructions here, or you could get a false reading on the dipstick.

NOTICE:

Too much or too little fluid can damage your transmission. Too much can mean that some of the fluid could come out and fall on hot engine parts or exhaust system parts, starting a fire. Be sure to get an accurate reading if you check your transmission fluid.

Wait at least 30 minutes before checking the transmission fluid level if you have been driving: 0 When outside temperatures are above 90°F (32°C).

At high speed for quite a while. In heavy traffic -- especially in hot weather. While pulling a trailer.

To get the right reading, the fluid should be at normal operating temperature, which is 180°F to 200°F (82°C to 93°C). --- -king "ran:- - - - . .ion Fluid Hot bet the vehicle warmed up by driving about 15 miles (24 km) when outside temperatures are above 50°F (10°C). If it's colder than 50°F (lO"C), drive the vehicle in DRIVE (D) until the engine temperature gage moves and then remains steady for 10 minutes. Then follow the hot check procedures.

Checking Transmission Fluid Cold A cold check is made after the vehicle has been sitting for eight hours or more with the engine off and is used only as a reference. Let the engine run at idle for five minutes if outside temperatures are 50°F (10°C) or more. If it's colder than 50°F (IOOC), you may have to idle the engine longer. Should the fluid level be low during a cold check, you 17zusr perform a hot check before adding fluid. This will give you a more accurate reading of the fluid level. Checking the Fluid Hot or Cold

Park your vehicle on a level place. Keep the engine running. With the parking brake applied, place the shift lever in PARK (P). With your foot on the brake pedal, move the shift lever through each gear range, pausing for about three seconds in each range. Then, position the shift lever in PARK (P).

0 Let the engine run at idle for three minutes or more.

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Then, without shutting off the engine, follow these steps:

1.

2.

Flip the handle up and then pull out the dipstick and wipe it with a clean rag or paper towel. Push it back in all the way, wait three seconds and then pull it back out again.

3. Check both sides of the dipstick, and read the lower level. The fluid level must be in the COLD area for a cold check or in the HOT area or cross-hatched area for a hot check.

4. If the fluid level is in the acceptable range, push the

dipstick back in all the way; then flip the handle down to lock the dipstick in place.

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How to Add Fluid Refer to the Maintenance Schedule to determine what kind of transmission fluid to use. See “Recommended Fluids and Lubricants” in the Index. Add tluid only after checking the transmission fluid HOT. (A COLD check is used only as a reference.) If the fluid level is low, add only enough of the proper fluid to bring the level up to the HOT area for a hot check. It doesn’t take much fluid, generally less than a pint (0.5 L). DOLJ ’t overfill. We recommend you use only fluid labeled DEXRON@-111, because fluid with that label is made especially for your automatic transmission. Damage caused by fluid other than DEXRON-111 is not covered by your new vehicle warranty.

After adding fluid, recheck the fluid level as described under ”How to Check.” When the correct fluid level is obtained, push the dipstick back in a l l the way; then flip the handle down to lock the dipstick in place.

Rear Axle When to Check and Change Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant and when to change it. See “Scheduled Maintenance Services” in the Index. How to Check Lubricant

If the level is below the bottom of the filler plug hole, you’ll need to add some lubricant. Add enough lubricant to raise the level to the bottom of the filler plug hole.

What to Use Refer to the Maintenance Schedule to determine what kind of lubricant to use. See “Recommended Fluids and Lubricants” in the Index.

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NOTICE:

When adding coolant it is important that you use DEX-COOL TM (orange-colored, silicate-free) coolant meeting GM Specification 6277M. If silicated coolant is added to the system, premature engine, heater core or radiator coolant will require change sooner -- at corrosion may result. In addition, the engine 30,000 miles (50 000 km) or 24 months, whichever occurs first.

Engine Coolant The cooling system in your vehicle is filled with new DEX-COOL TM (orange-colored, silicate-free) engine coolant. This coolant is designed to remain in your vehicle for 5 years or 100,000 miles (166 000 km), whichever occurs first. The following explains your cooling system and how to add coolant when it is low. If you have a problem with engine overheating, see “Engine Overheating” in the Index. A 50/50 mixture of water and the proper coolant for your vehicle will:

Give freezing protection down to -34°F (-37°C). Give boiling protection up to 265 “F ( 129 O C).

0 Protect against rust and corrosion.

Help keep the proper engine temperature. Let the warning lights and gages work as they should.

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What to Use Use a mixture of one-half clean water (preferably distilled) and one-half DEX-COOL TM (orange-colored, silicate-free) antifreeze that meets GM Specification 6277M, which won’t damage aluminum parts. Use GM Engine Coolant Supplement (sealer) (GM Part No. 3634621) with any complete coolant change. If you use this mixture, you don’t need to add anything else.

Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid like alcohol, can boil before the proper coolant mix will. Your vehicle’s coolant warning system is set for the proper coolant mix. With plain water or the wrong mix, your engine could get too hot but you wouldn’t get the overheat warning. Your engine could catch fire and you or others could be burned. Use a 50/50 mix of clean water and DEX-COOL TM (orange-colored, silicate-free) antifreeze.

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NOTICE:

~~

If you use an improper coolant mix, your engine could overheat and be badly damaged. The repair cost wouldn’t be covered by your warranty. Too much water in the mix can freeze and crack the engine, radiator, heater core and other parts.

If you have to add coolant more than four times a year, have your dealer check your cooling system.

I NOTICE:

If you use the proper coolant, you don’t have to add extra inhibitors or additives which claim to improve the system. These can be harmful.

Checking Coolant

When your engine is cold, the coolant level should be at FULL COLD, or a little higher.

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Adding Coolant If you need more coolant, add the proper mix ut the coolcrnt mcoveq* t m k .

A CAUTION:

Tbrning the radiator pressure cap when the engine and radiator are hot can allow steam and scalding liquids to blow out and burn you badly. With the coolant recovery tank, you will Never turn the radiator pressure cap -- even a almost never have to add coolant at the radiator. little -- when the engine and radiator are hot.

Add coolant mix at the recovery tank. but be careful n o t to spill it.

A CAUTION:

You can be burned if' you spill coolant on hot engine parts. Coolant contains ethylene glycol, and it will burn if the engine parts are hot enough. Don't spill coolant on a hot engine.

Radiator Pressure Cap The radiator pressure cap nust be tightly installed with the arrows on the cap lined up with the overflow tube on the radiator filler neck.

NOTICE:

Your radiator cap is a pressure-type cap and loss must be tightly installed to prevent coolant and possible engine damage from overheating. Be sure the arrows on the cap line up with the overflow tube on the radiator filler neck.

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Thermostat Engine coolant temperature is controlled by a thermostat in the engine cooling system. The thermoskt stops the tlow of coolant through the radiator until the coolant reaches a preset temperature. When you replace your thermostat, an AC@ thermostat is recommended. Power Steering Fluid

When to Check Power Steering Fluid It is not necessary to regularly check power steering tluid unless you suspect there is a leak in the system or you hear an unusual noise. A fluid loss in this system could indicate a problem. Have the system inspected and repaired. How To Check Power Steering Fluid When the engine compartment is cool, unscrew the cap and wipe the dipstick with a clean rag. Replace the cap and completely tighten it. Then remove the cap again and look at the fluid level on the dipstick. The level should be at the FULL COLD mark. If necessary, add only enough fluid to bring the level up to the mark. To prevent brake fluid contamination, never check or fill the power steering reservoir with the master cylinder cover off. What to Use Refer to the Maintenance Schedule to determine what kind of fluid to use. See “Recommended Fluids and Lubricants” in the Index. Always use the proper fluid. Failure to use the proper fluid can cause leaks and damage hoses and seals.

Windshield Washer Fluid What to Use When you need windshield washer fluid, be sure to read the manufacturer’s instructions before use. If you will be operating your vehicle in an area where the temperature may fall below freezing, use a fluid that has sufficient protection against freezing. Adding Washer Fluid

Open the cap labeled WASHER FLUID. Add washer fluid until the tank is full.

NOTICE:

When using concentrated washer fluid, follow the manufacturer’s instructions for adding water. Don’t mix water with ready-to-use washer fluid. Water can cause the solution to freeze and damage your washer fluid tank and other parts of the washer system. Also, water doesn’t clean as well as washer fluid. Fill your washer fluid tank only three-quarters full when it’s very cold. This allows for expansion, which could damage the tank if it is completely full. Don’t use radiator antifreeze in your windshield washer. It can damage your washer system and paint.

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Brakes Brake Fluid

Your brake master cylinder reservoir is here. It is filled with DOT-3 brake fluid. There are only two reasons why the brake fluid level i n the reservoir might go down. The first is that the brake fluid 2 wes down t o an acceptable level during nonnal brake lining wear. When new linings are put i n , thc tluid levcl

6-26

c qoes back up. The other reason is that fluid is leaking out of the brake system. If it is, you should have your brake system fixed, since a leak means that sooner or later your brakes won't work well, or won't work at all. So, it isn't a good idea t o "top off' your brake tluid. Adding brake fluid won't correct a leak. If you add fluid when your linings are worn, then you'll have too much fluid when you get new brake linings. You should add (or remove) brake fluid, as necessary, only when work is done on the brake hydraulic system.

A CAUTION

If you have too much brake fluid, it can spill on the engine. The fluid will burn if the engine is hot enough. You or others could be burned, and your vehicle could be damaged. Add brake fluid only when work is done on the brake hydraulic system.

Refer to the Maintenance Schedule to determine when to check your brake fluid. See "Periodic Maintenance Inspections" i n the Index.

Checking Brake Fluid

What to I When you do need brake fluid, use only DOT-3 brake fluid -- such as Delco Supreme 11 No. 1052535). Use new brake fluid from a sealed container only, and always clean the brake fluid reservoir cap before removing it.

(GM Part

You can check the brake fluid without taking off the cap. Just look at the windows on the brake fluid reservoir. The fluid levels should be above MIN. If they aren’t, have your brake system checked to see if there is a leak. After work is done on the brake hydraulic system, make sure the levels are above MIN and below the top of each window.

With the wrong kind of fluid in your brake system, your brakes may not work well, or they may not even work at all. This could cause a crash. Always use the proper brake fluid.

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NOTICE:

Using the wrong fluid can badly damage brake system parts. For example, just a few drops of mineral-based oil, such as engine oil, in your brake system can damage brake system parts so badly that they’ll have to be replaced. Don’t let someone put in the wrong kind of fluid. If you spill brake fluid on your vehicle’s painted surfaces, the paint finish can be damaged. Be careful not to spill brake fluid on your vehicle. If you do, wash it off immediately. See “Appearance Care” in the Index.

Brake Wear Your vehicle has front disc brakes and rear drum brakes. Disc brake pads have built-in wear indicators that make a high-pitched warning sound when the brake pads are worn and new pads are needed. The sound may come and go or be heard all the time your vehicle is moving (except when you are pushing on the brake pedal firmly).

The brake wear warning sound means that sooner or later your brakes won’t work well. That could lead to an accident. When you hear the brake wear warning sound, have your vehicle serviced.

I NOTICE:

Continuing to drive with worn-out brake pads could result in costly brake repair.

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Some driving conditions or climates may cause a brake squeal when the brakes are first applied or lightly applied. This does not mean something is wrong with your brakes. Free movement of brake calipers and properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake calipers for movement, brake pads for wear, and evenly torque wheel nuts in the proper sequence to GM specifications. Your rear drum brakes don’t have wear indicators, but if you ever hear a rear brake rubbing noise, have the rear brake linings inspected. Also, the rear brake drums should be removed and inspected each time the tires are removed for rotation or changing. When you have the front brakes replaced, have the rear brakes inspected, too. Brake linings should always be replaced as complete axle sets.

:a1

Pedal Travel

see your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign of brake trouble. Brake Adjustment Every time you make a brake stop, your disc brakes adjust for wear. If your brake pedal goes down farther than normal, your rear drum brakes may need adjustment. Adjust them by backing up and firmly applying the brakes a few times.

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Replacing Brake System Parts The braking system on a modern vehicle is complex. Its many parts have to be of top quality and work well together if the vehicle is to have really good braking. Vehicles we design and test have top-quality GM brake parts in them, as your vehicle does when it is new. When you replace parts of your braking system -- for example, when your brake linings wear down and you have to have new ones put in -- be sure you get new genuine GM replacement parts. If you don’t, your brakes may no longer work properly. For example, if someone puts in brake linings that are wrong for your vehicle, the balance between your front and rear brakes can change -- for the worse. The braking performance you’ve come to expect can change in many other ways if someone puts in the wrong replacement brake parts.

Battery Every new vehicle has a Delco Freedom@ battery. You never have to add water to one of these. When it’s time for a new battery, we recolnmend a Delco Freedom battery. Get one that has the replacement number shown on the original battery’s label. Vehicle Storage If you’re not going to drive your vehicle for 25 days or more, take off the black, negative (-) cable from the battery. This will help keep your battery from running down.

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Halwen Bulbs

A CAUTIO

Halogen bulbs have pressurized gas inside and can burst if you drop or scratch the bulb. You or others could be injured. Be sure to read and follow the instructions on the bulb package.

Headlamps You have either a sealed beam ‘headlamp system or a composite system.

Batteries have acid that can burn you and gas that can explode. You can be badly hurt if you aren’t careful. See “Jump Starting” in the Index for tips on working around a battery without getting hurt.

Contact your dealer to learn how to prepare your vehicle for longer storage periods. Also, for your audio system, see ”Theft-Deterrent Feature’’ in the Index. Bulb Replacement Before you replace any bulbs, be sure that all the lamps are off and the engine isn’t running. See “Replacement Bulbs” in the index for the proper types of bulbs to use.

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Sealed Beam Headlamps

1. Remove the four screws from the headlamp retainer.

Pull the retainer out and set it aside.

2. Unplug the lamp assembly from the connector. 3. Install a new headlamp. 4. Reverse Steps 2 through 3 to reinstall the headlamp.

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Composite Headlamps 1. Open the hood. 2. Locate the rear side of each of the headlamps.

3. Without removing the headlamp assembly itself, remove the bulb assembly from the back of the headlamp on the driver’s side by turning the bulb counterclockwise one quarter turn.

4. On the passenger side, turn the bulb clockwise

one-quarter turn. Also, to remove the bulb on the passenger side, you will need t o move the battery.

5. Install a new bulb. Do not handle the glass part of

the bulb.

6. Reverse Steps 3 through 4 to reinstall the headlamp.

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Trent Parkinglnrn Signal Lamps To replace the front parking/turn signal lamps:

2. Remove the lamp from the grille.

1. Remove the outer screws from the parking/turn

signal lamp lens assembly. (There are either two or four screws, depending on your vehicle’s trim level.)

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Sidemarker Lamps

I . Remove the screw from the top o f the lens.

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Taillamps 1. Open the rear door.

2. Un-clip the bottom of the lamp from the grille. 3. Remove the bulb by twisting it out of the socket. Turn the bulb to remove it. Install the new bulb.

4. Reverse these steps to reinstall the lamp.

2. Push the socket protector until you can see

the fasteners.

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1

3. Remove the nuts with a deep socket wrench.

4. Remove the hidden upper nuts.

6-37

5. Lift the lamp as you rotate it toward the rear of the vehicle.

6. Turn the sockets to the left to remove.

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Windshield Wiper Blade Replacement

7. With the door open, turn the bulb to the left to

remove it. Install the new bulb.

8. Reverse the above steps to reinstall the lamp.

See “Normal Maintenance Replacement Parts” in the Index for the proper type of replacement blade.

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Replacement blades come in different types and are removed in different ways. To remove the type with a release clip: 1.

To remove the old wiper blades, lift the wiper arm until it locks into a vertical position. Press down on the blade assembly pivot locking tab. Pull down on the blade assembly to release it from the wiper arm hook. Remove the insert .from the blade assembly. The insert has two notches at one end that are locked by bottom claws of the blade assembly. At the notched end, pull the insert from the blade assembly.

2.

3.

4. To install the new wiper insert, slide the notched end last, into the end with two blade claws. Slide all the way through the blade claws at the opposite end. 5 . Be sure that the notches are locked by the bottom claws. Make sure that all other claws are properly locked on both sides of the insert slots.

6. Put the blade assembly pivot in the wiper arm

hook. Pull up until the pivot locking tab locks in the hook slot.

7. Carefully lower the wiper arm and blade assembly

into the windshield.

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Tires We don’t make tires. Your new vehicle comes with high-quality tires made by a leading tire manufacturer. If you ever have questions about your tire warranty and where to obtain service, see your GM Warranty booklet for details.

Poorly maintained and improperly used tires are dangerous.

Overloading your tires can cause overheating as a result of too much friction. You could have an air-out and a serious accident. See “Loading Your Vehicle’’ in the Index.

CAUTION: (Continued)

CAU’ ON: (Continued)

Underinflated tires pose the same danger as overloaded tires. The resulting accident could cause serious injury. Check all tires frequently to maintain the recommended pressure. Tire pressure should be checked when your tires are cold. Overinflated tires are more likely to be impact -- such as when you hit a pothole. cut, punctured or broken by a sudden Keep tires at the recommended pressure. Worn, old tires can cause accidents. If your tread is badly worn, or been damaged, replace them.

if your tires have

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Inflation -- Tire Pressure

label, which is on the rear edge of

The Certification/Til-e-~ the driver’s door, shows the correct inflation pressures for your tires when they’re cold. “Cold” means your vehicle has been sitting for at least three hours or driven no 1mre than 1 mile (1.6 ktn).

I NOTICE:

(Continued)

NOTICE:

Don’t let anyone tell you that underinflation or overinflation is all right. It’s not. If your tires don’t have enough air (underinflation), you can get the following: 0 Too much flexing

Too much heat

0 Tire overloading

Bad wear

0 Bad handling

Bad fuel economy.

NOTICE: (Continued)

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If your tires have too much air (overinflation), you can get the following: 0 Unusual wear 0 Bad handling 0 Rough ride 0 Needless damage from road hazards.

When to Check Check your tires once a month or more. Also, check the tire pressure o f the spare tire.

Haw to Check Use a good quality pocket-type gage to check tire pressure. You can’t tell if yom tires are properly inflated simply by looking at them. Radial tires may look properly inflated even when they’re underinflated. Be sure to put the valve caps back on the valve stems. They help prevent leaks by keeping out dirt and moisture.

nspectior

1 Ires should be inspected every 6,000 to 8,000 miles ( I 0 000 to 13 000 km) for any signs of unusual wear. If unusual wear is present, rotate your tires as soon as possible and check wheel alignment. Also check for damaged tires or wheels. See “When It’s Time for New Tires” and “Wheel Replacement” later in this section for more information. If your vehicle has dual rear wheels, also see “Dual Tire Operation“ later in this section. The purpose of regular rotation is to achieve more uniform wear for all tires on the vehicle. The first rotation is the most important. See “Scheduled Maintenance Services” in the Index for scheduled rotation intervals.

FRT

FRT

KC

If your vehicle has single rear wheels, always use one of the correct rotation patterns shown here when rotating your tires.

If your vehicle has dual rear wheels, always use one of the. correct rotation patterns shown here when rotating your tires. When you install dual wheels, be sure the vent holes in the inner and outer wheels on each side are lined up. After the tires have been rotated, adjust the front and rear inflation pressures as shown on the CertificatidTire label. Make certain that all wheel nuts are properly tightened. See “Wheel Nut Torque” in the Index.

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A CAUTION:

Rust or dirt on a wheel, or on the parts to which it is fastened, can make wheel nuts become loose after a time. The wheel could come off and cause an accident. When you change a wheel, remove any rust or dirt from places where the wheel attaches to the vehicle. In an emergency, you can use a cloth or a paper towel to do this; but be sure to use a scraper or wire brush later, if you need to, to get all the rust or dirt off. (See “Changing a Flat Tire” in the

Index.)

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When It’s Time for New Tires

One way to tell when it’s time for new tires is to check the treadwear indicators, which will appear when your tires have only 1/16 inch (1.6 mm) or less of tread remaining. Some commercial truck tires may not have treadwear indicators.

You need a new tire if any of the following statements are true: 0 You can see the indicators at three or more places

around the tire.

0 You can see cord or fabric showing through the

tire’s rubber.

0 The tread or sidewall is cracked, cut or snagged deep

enough to show cord or fdbric.

0 The tire has a bump, bulge or split.

The tire has a puncture, cut or other damage that can’t be repaired well because of the size or location of the damage.

Dual Tire Operation When the vehicle is new, or whenever a wheel, wheel bolt or wheel nut is replaced, check the wheel nut torque after 100, 1,000 and 6,000 miles ( 160, 1 600 and 10 000 km) of driving. For proper torque, see “Wheel Nut Torque” in the Index. The outer tire on a dual wheel setup generally wears faster than the inner tire. Your tires will wear more evenly and last longer if you rotate the tires periodically. If you’re going to be doing a lot of driving on high-crown roads, you can reduce tire wear by adding 5 psi (35 kPa) to the tire pressure in the outer tires. Be sure to return to the recommended pressures when no longer driving under those conditions. See “Changing a Flat Tire” in the Index for more information.

A CAUTION:

If you operate your vehicle with a tire that is badly underinflated, the tire can overheat. An overheated tire can lose air suddenly or catch fire. You or others could be injured. Be sure all tires (including the spare) are properly inflated.

Buying New Tires To find out what kind and size of tires you need, look at the Certification/Tire label. The tires installed on your vehicle when it was new had a Tire Performance Criteria Specification (TPC Spec) number on each tire’s sidewall. When you get new tires, get ones with that same TPC Spec number. That way your vehicle will continue to have tires that are designed to give proper endurance, handling, speed rating, traction, ride and other things during normal service on your vehicle. If your tires have an all-season tread design, the TPC number will be followed by an “MS” (for mud and snow). If you ever replace your tires with those not having a TPC Spec number, make sure they are the same size, load range, speed rating and construction type (bias, bias-belted or radial) as your original tires.

A CAUTION:

Mixing tires could cause you to lose control while driving. If you mix tires of different sizes or types (radial and bias-belted tires), the vehicle may not handle properly, and you could have a crash. Using tires of different sizes may also cause damage to your vehicle. Be sure to use the same size and type tires on all wheels.

Uniform Tire Quality Grading The following information relates to the system developed by the United States National Highway Traffic Safety Administration, which grades tires by treadwear, traction and temperature performance. (This applies only to vehicles sold in the United States.) The grades are molded on the sidewalls of most passenger car tires. The Uniform Tire Quality Grading system does not apply to deep tread, winter-type snow tires, space-saver or temporary use spare tires, tires with nominal rim diameters of 10 to 12 inches (25 to 30 cm), or to some limited-production tires. While the tires available on General Motors passenger cars and light trucks may vary with respect to these grades, they must also conform to Federal safety requirements and additional General Motors Tire Performance Criteria (TYC) standards.

6-46

Treadwear The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, a tire graded 150 would wear one and a half (1 1/2) times as well on the governrnent course as a tire b oraded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due t o variations in driving habits, service practices and differences in road characteristics and climate.

Traction -- A, B, C

The traction grades, from highest to lowest, are A, B, and C, and they represent the tire's ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction pelformance. Warning: The traction grade assigned to this tire is based on braking (straightahead) traction tests and does not include cornering (turning) traction.

Temperature -- A, B, C

The temperature grades are A (the highest), B, and C, representing the tire's resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law. Warning: The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or in combination, can c a ~ w heat. buildup and possible tire failure.

6-47

Wheel Alignment and Tire Balance The wheels on your vehicle were aligned and balanced carefully at the factory to give you the longest tire life and best overall performance. In most cases, you will not need to have your wheels aligned again. However, if you notice unusual tire wear or your vehicle pulling one way or the other, the alignment may need to be reset. If you notice your vehicle vibrating when driving on a smooth road, your wheels may need to be rebalanced. Wheel Replacement Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts and wheel nuts should be replaced. If the wheel leaks air, replace it (except some aluminum wheels, which can sometimes be repaired). See your GM dealer if any of these conditions exist. Your dealer will know the kind of wheel you need.

Each new wheel should have the same load-carrying capacity, diameter, width, offset and be mounted the same way as the one it replaces. If you need to replace any of your wheels, wheel bolts or wheel nuts, replace them only with new GM original equipment parts. This way, you will be sure to have the right wheel, wheel bolts and wheel nuts for your vehicle.

4 CAUTION:

r-

Using the wrong replacement wheels, wheel bolts or wheel nuts on your vehicle can be dangerous. It could affect the braking and handling of your vehicle, make your tires lose air and make you lose control. You could have a collision in which you or others could be injured. Always use the correct wheel, wheel bolts and wheel nuts for replacement.

6-48

NOTICE:

The wrong wheel can also cause problems with bearing life, brake cooling, speedometer or odometer calibration, headlamp aim, bumper height, vehicle ground clearance and tire or tire chain clearance to the body and chassis.

Whenever a wheel, wheel bolt or wheel nut is replaced on a dual wheel setup, check the wheel nut torque after 100, 1,000 and 6,000 miles (160, 1 600 and 10 000 km) of driving. For proper torque, see “Wheel Nut Torque” in the Index. See “Changing a Flat Tire” in the Index for more information.

Used Replacement Wheels

Putting a used wheel on your vehicle is dangerous. You can’t know how it’s been used or how many miles it’s been driven. It could fail suddenly and cause an accident. If you have to replace a wheel, use a new GM original equipment wheel.

6-49

Tire Chains

NOTICE:

Use tire chains only where legal and only when you must. Use chains that are the proper size for your tires. Install them on the tires of the rear axle. Tighten them as tightly as possible with the ends securely fastened. Drive slowly and follow the chain manufacturer's instructions. If you can hear the chains contacting your vehicle, stop and retighten them. If the contact continues, slow down until it stops. Driving too fast or spinning the wheels with I chains on will damage your vehicle. Appearance Care Remember, cleaning products can be hazardous. Some are toxic. Others can burst into flame if you strike a match or get them on a hot part of the vehicle. Some are dangerous if you breathe their fumes i n a closed space. When you use anything from a container to clean your vehicle, be sure to follow the n1anufacturer's warnings and instructions. And always open your doors or windows when you're cleaning the inside. 6-50

0 Gasoline 0 Benzene Naphtha

0 Carbon Tetrachloride 0 Acetone 0 Paint Thinner 0 Turpentine 0 Lacquer Thinner 0 Nail Polish Remover They can all be hazardous -- some Inore than others -- and they can all damage your vehicle, too. Don't use any of these unless this manual says you can. In many uses, these will darnage your vehicle: 0 Alcohol 0 Laundry Soap 0 Bleach 0 Reducing Agents

Cleaning the Inside of Your Vehicle Use a vacuum cleaner often to get rid of dust and loose dirt. Wipe vinyl or leather with a clean, damp cloth. Your CM dealer has two GM cleaners, a solvent-type spot lifter and a foam-type powdered cleaner. They will clean normal spots and stains very well. Do not use them on vinyl or leather. Here are some cleaning tips:

Always read the instructions on the cleaner label. Clean up stains as soon as you can -- before they set. Use a clean cloth or sponge, and change to a clean area often. A soft brush may be used if stains are stubborn. Use solvent-type cleaners in a well-ventilated area only. If you use them, don’t saturate the stained area. If a ring forms after spot cleaning, clean the entire area immediately or it will set.

2.

3.

Using Foam-Type Cleaner on Fabric Vacuum and brush the area to remove any 1. loose dirt. Always clean a whole trim panel or section. Mask surrounding trim along stitch or welt lines. Mix Multi-Purpose Powdered Cleaner following the directions on the container label. Use suds only and apply with a clean sponge. Don’t saturate the material. Don’t rub it roughly. As soon as you’ve cleaned the section, use a sponge to remove the suds. Rinse the section with a clean, wet sponge. Wipe off what’s left with a slightly damp paper towel or cloth. Then dry it immediately with a blow dryer. Wipe with a clean cloth.

4. 5. 6. 7.

10. 11.

8. 9.

6-51

Special Cleaning Problems Greasy or Oily Stains Stains caused by grease, oil, butter, margarine, shoe polish, coffee with cream, chewing gum, cosmetic creams, vegetable oils, wax crayon, tar and asphalt can be removed as follows: I . Carefully scrape off excess stain. 2. Follow the solvent-type instructions described earlier. 3. Shoe polish, wax crayon, tar and asphalt will stain if

left on a vehicle’s seat fabric. They should be removed as soon as possible. Be careful, because the cleaner will dissolve them and may cause them to spread.

Using Solvent-Type Cleaner on Fabric First, see if you have to use solvent-type cleaner at all. Some spots and stains will clean off better with just water and mild soap. If you need to use a solvent: 0 Gently scrape excess soil from the trim material with a clean, dull knife or scraper. Use very little cleaner, light pressure and clean cloths (preferably cheesecloth). Cleaning should start at the outside of the stain, “feathering” toward the center. Keep changing to a clean section of the cloth. When you clean a stain from fabric, immediately dry the area with a blow dryer to help prevent a cleaning ring.

Fabric Protection Your GM has upholstery and carpet that has been treated with Scotchgard” Fabric Protector, a 3M product. It protects fabrics by repelling oil and water, which are the carriers of most stains. Even with this protection, you still need to clean your upholstery and carpet often to keep it looking new. Further information on cleaning is available by calling 1-800-433-3296 (in Minnesota, 1-800-642-6 167).

6-52

, .~

Non-Greasy Stains Stains caused by catsup, coffee (black), egg, fruit, fruit juice, milk, soft drinks, wine, vomit, urine and blood can be removed as follows: 1. Carefully scrape oiYexcess stain, then sponge the

soiled area with cool water.

2. If a stain remains, follow the foam-type instructions

described earlier.

3. If an odor lingers after cleaning vomit or urine, treat

the area with a watedbaking soda solution: 1 teaspoon (5 mlj of baking soda to 1 cup (250 ml) of lukewarm water.

4. If needed, clean lightly with solvent-type cleaner.

Combination Stains Stains caused by candy, ice cream, mayonnaise, chili sauce and unknown stains can be removed as follows:

Carefully scrape off excess stain, then clean with cool water and allow to dry. If a stain remains, clean it with solvent-type cleaner.

Cleaning Vinyl Use warm water and a clean cloth. 0 Rub with a clean, damp cloth to remove dirt. You

may have to do it more than once.

0 Things like tar, asphalt and shoe polish will stain if

you don't get them off quickly. Use a clean cloth and a GM VinyVLeather Cleaner or equivalent product.

Cleaning LC ther Use a soft cloth with lukewarm waler and a mild soap or saddle soap.

For stubborn stains, use a GM VinyVLeather Cleaner or equivalent product. Never. use oils, varnishes, solvent-based or abrasive cleaners, furniture polish or shoe polish on leather. 0 Soiled leather should be cleaned immediately. If dirt is allowed to work into the finish, it can harm the leather.

6-53

Cleaning the Top of the Instrument Panel Use only mild soap and water to clean the top surfaces of the instrument panel. Sprays containing silicones or waxes may cause annoying reflections in the windshield and even make it difficult to see through the windshield under certain conditions. Care of Safety Belts Keep belts clean and dry.

Glass Glass should be cleaned often. GM Glass Cleaner (GM Part No. 1050427) or a liquid household glass cleaner will remove normal tobacco smoke and dust films. Don’t use abrasive cleaners on glass, because they may cause scratches. Avoid placing decals on the inside rear window, since they may have to be scraped off later. If abrasive cleaners are used on the inside of the rear window, an electric defogger element may be damaged. Any temporary license should not be attached across the defogger grid.

Do not bleach or dye safety belts. If you do, it may severely weaken them. In a crash, they might not be able to provide adequate protection. Clean-safety belts only with mild soap and lukewarm water.

6-54

Cleaning the Outside of the Windshield and Wiper Blades If the windshield is not clear after using the windshield washer, or if the wiper blade chatters when running, wax or other material may be on the blade or windshield. Clean the outside of the windshield with GM Windshield Cleaner, Bon-Ami Powder@ (GM Part No. 105001 1). The windshield is clean if beads do not form when you rinse it with water. Clean the blade by wiping vigorously with a cloth soaked in full-strength windshield washer solvent. Then rinse the blade with water. Wiper blades should be checked on a regular basis and replaced when worn. Weatherstrips Silicone grease on weatherstrips will make them last longer, seal better, and not stick or squeak. Apply silicone grease with a clean cloth at least every six months. During very cold, damp weather more frequent application may be required. (See “Recommended Fluids and Lubricants’’ in the Index.)

C1 ming the Outside of Your Vehicle The paint finish on your vehicle provides beauty, depth of color, gloss retention and durability. Washing Your Vehicle The best way to preserve your vehicle’s finish is to keep it clean by washing it often with lukewarm or cold water. Don’t wash your vehicle in the direct rays of the sun. Don’t use strong soaps or chemical detergents. Use liquid hand, dish or car washing (mild detergent) soaps. Don’t use cleaning agents that are petroleum based, or that contain acid or abrasives. All cleaning agents should be flushed promptly and not allowed to dry on the surface, or they could stain. Dry the finish with a soft, clean chamois or a 100% cotton towel to avoid surface scratches and water spotting. High pressure vehicle washes may cause water to enter your vehicle.

6-55

Finish Care Occasional waxing or mild polishing of your vehicle by hand may be necessary to remove residue from the paint finish. You can get GM-approved cleaning products from your dealer. (See “Appearance Care and Materials” in the Index.) Your GM manufactured vehicle may have a “basecoat/clearcoat” paint finish. The clearcoat gives more depth and gloss to the colored basecoat. Always use waxes and polishes that are non-abrasive and made for a basecoatklearcoat paint finish.

I NOTICE:

Machine compounding or aggressive polishing on a basecoatklearcoat paint finish may dull the finish or leave swirl marks.

Foreign materials such as calcium chloride and other salts, ice melting agents, road oil and tar, tree sap, bird droppings, chemicals from industrial chimneys, etc., can damage your vehicle’s finish if they remain on painted surfaces. Wash the vehicle as soon as possible. If necessary, use non-abrasive cleaners that are marked safe for painted surfaces to remove foreign matter. Exterior painted surfaces are subject to aging, weather and chemical fallout that can take their toll over a period of years. You can help to keep the paint finish looking new by keeping your vehicle garaged or covered whenever possible. Protecting Exterior Bright Metal Parts Bright metal parts should be cleaned regularly to keep their luster. Washing with water is all that is usually needed. However, you may use GM Chrome Polish on chrome or stainless steel trim, if necessary. Use special care with aluminum trim. To avoid damaging protective trim, never use auto or chrome polish, steam or caustic soap to clean aluminum. A coating of wax, rubbed to high polish, is recommended for all bright metal parts.

6-56

Sheet Metal Damage If your vehicle is damaged and requires sheet metal repair or replacement, make sure the body repair shop applies anti-corrosion material to the parts repaired or replaced to restore corrosion protection. Finish Damage Any stone chips, fractures or deep scratches in the finish should be repaired right away. Bare metal will corrode quickly and may develop into a major repair expense. Minor chips and scratches can be repaired with touch-up materials available from your dealer or other service outlets. Larger areas of finish damage can be corrected in your dealer’s body and paint shop.

Aluminum Wheels (If So Equipped) beep your wheels clean using a soft clean cloth with mild soap and water. Rinse with clean water. After rinsing thoroughly, dry with a soft clean towel. A wax may then be applied. The surface of these wheels is similar to the painted surface of your vehicle. Don’t use strong soaps, chemicals, abrasive polishes, abrasive cleaners or abrasive cleaning brushes on them because you could damage the surfxe. Don‘t take your vehicle through an automatic vehicle wash that has silicon carbide tire cleaning brushes. These brushes can also damage the surfxe of these wheels. Tires To clean your tires, use a stiff brush with a tire cleaner.

I NOTICE:

When applying a tire dressing always take care to wipe off any overspray or splash from all painted surfaces on the body or wheels of the vehicle. Petroleum-based products may damage the paint finish.

6-57

Underbody Maintenance Chemicals used for ice and snow removal and dust control can collect on the underbody. If these are not removed, accelerated corrosion (rust) can occur on the underbody parts such as fuel lines, frame, floor pan and exhaust system even though they have corrosion protection. At least every spring, flush these materials from the underbody with plain water. Clean any areas where mud and other debris can collect. Dirt packed in closed areas of t.he frame should be loosened before being flushed. Your dealer or an underbody vehicle washing system can do this for you.

Chemical Paint Spotting Some weather and atmospheric conditions can create a chemical fallout. Airborne pollutants can fall upon and attack painted surfaces on your vehicle. This damage can take two forms: blotchy, ringlet-shaped discolorations, and small irregular dark spots etched into the paint surface. Although no defect in the paint job causes this, GM will repair, at no charge to the owner, the surfaces of new vehicles damaged by this fallout condition within 12 months or 12,000 miles (20 000 k m ) of purchase, whichever occurs first. This applies only to materials manufactured and sold by General Motors. Bodies, body conversions or equipment not made or sold by General Motors are not covered.

Appearance Care Materials Chart I PARTNUMBER I

SIZE

DESCRIPTION

USAGE

I050004 IO501 72 1050 173 1050 I 74 I05020 I 10502 14 1 OS0427 1050429

1051515 I052870 105291 8** 1052929 I052930

2.75 sq. ft.

16 oz. (0.473 Lj 16 oz. (0.473 L) 16 oz. (0.473 L) 16 oz,. (0.473 L) 32 02. (0.946 Lj 23 oz. (0.680 L) 6 Ibs. (2.72 kg)

Chamois

Tar and Road Oil Remover Chrome Cleaner and Polish White Sidewall Tire Cleaner Magic Mirror Cleaner Polish Vinyl and Leather Cleaner

Glass Cleaner

Multi-Purpose Powdered Cleaner

I 32 oz. (0.946 L) I6 oz. (0.473 L) 8 oz. (0.237 L) 16 oz. (0.473 L) 8 0%. (0.237 L) 16 oz. (0.473 L)

Spot Lifter Optikleen

Wash and Wax Armor All

Concentrate Protector

Wheel Cleaner

Capture Dry Spot Remover

1~

Shines vehicle without scratching

Also removes old waxes and polishes

Removes rust and corrosion Removes soil and black marks

Exterior cleaner and polish

Spot and stain removal

Cleans grease, grime and smoke film Cleans vinyl, cloth, tires and mats

For cloth

Windshield washer solvent and antifreeze

-~

~~

~~

Exterior wash

Spray on wheel cleaner Attracts and absorbs soils

12345002**’ 12345725

I See your General Motors Parts Department for these products.

I 12 oz. (0.354 L) I

See “Fluids and Lubricants’’ in the Index.

Armor All Cleaner Silicone Tire Shine

Cleans vinyl, leather and rubber

**Not recommended for use on instrument panel vinyl. I

* Not recomrr.,..ded for pigskin suede leather.

. Shines tires - .,

- - . _

- -~

..

< -

6-59

Service Parts Identification Label You’ll find this label on the front passenger door frame. It’s very helpful if you ever need to order parts. On this label is:

your VIN, the model designation, 0 paint information, and 0 a list of all production options and special

equipment.

Be sure that this label is not removed from the vehicle.

Vehicle Identification Number (VIN)

SAMPLE4UXTM072675

E N G I N E A 6 f

CODE

MODEL YEAR

ASSEMBLY PLANT

This is the legal identifier for your vehicle. It appears on a plate in the front corner of the instrument panel, on the driver’s side. You can see it if you look through the windshield from outside your vehicle. The VIN also appears on the Vehicle Certification and Service Pats labels and the certificates of title and registration.

lgine Identification

The eighth character in your VIN is the engine code. This code will help you identify your engine, specifications and replacement parts.

6-60

Electrical System Add-on Electrical Equipment

NOTICE:

Don’t add anything electrical to your vehicle unless you check with your dealer first. Some electrical equipment can damage your vehicle and the damage wouldn’t be covered by your warranty. Some add-on electrical equipment can keep other components from working as they should.

Your vehicle has an air bag system. Before attempting to add anything electrical to your vehicle, see “Servicing Your Air Bag-Equipped Vehicle’’ in the Index.

Headlamp Wiring The headlamp wiring is protected by a circuit breaker in the lamp switch. An electrical overload will cause the lamps to flicker on and off, or in some cases to remain off. If this happens, have your headlamp wiring checked right away. Windshield Wiper Fuses The windshield wiper motor is protected by a circuit breaker and a fuse. If the motor overheats due to heavy snow, etc., the wiper will stop until the motor cools. Although the circuit is protected from electrical overload, overload due to heavy snow, etc., may cause wiper linkage damage. Always clear ice and heavy snow from the the windshield before using the windshield wipers. If the overload is caused by some electrical problem and not snow, etc., be sure to get it fixed. Power Windows and Other Power Options Circuit breakers in the fuse panel protect the power windows and other power accessories. When the current load is too heavy, the circuit breaker opens and closes. This protects the circuit until the current load returns to normal or the problem is fixed.

6-6 1

Instrument Panel

The fuse block access door is on the driver’s side of the instrument panel below the hood release lever.

feature of your vehicle that you can get along without -- like the radio or cigarette lighter -- and use its fuse, if it is of the value you need. Replace it as soon as you can. See “Fuses and Circuit Breakers’’ in the Index for more information.

FUSE BLOCK INFORMATION

You can remove fuses with a fuse extractor. The fuse extractor is mounted to the fuse block access door. To remove fuses if you don’t have a fuse extractor, hold the end of the fuse between your thumb and index finger and pull straight out. Be sure to use the correct fuse. If you ever have a problem on the road and don’t have a spare fuse, you can “borrow” one of the correct value. Just pick some

6-62

POSITION

1. 2. 3. 4.

5. 6. 7. 8. 9.

10. 11. 12.

13. 14.

15.

NAME STOP HTD MIR CTSY GAUGES

Hazard CRUISE PWR AUX Crank PARK LPS

AIR BAGS WIPER HTR-A/C CIG LTR ILLUM

DRL

CIRCUITS PROTECTED Stop/CHMSL, Stoplamps Electric Heated Mirrors Courtesy Lamps, Dome/RDG Lamps, Vanity Mirrors, Power Mirrors IP Cluster, DRL Relay, DRL Module, HDLP Switch, Keyless Entry Illumination, Low Coolant Module, CHIME Module, DRAB Module Hazard LampdCHIME Module Cruise Control Auxiliary Power Outlet, ALDL

License Plate Lamp, Parking Lamps, Taillamps, Front Sidemarkers, Glove Box Ashtray SDM Wiper Motor, Washer Pump A/C, A/C Blower, High Blower Relay, HTD Mirror Power Amp, Cigarette Lighter, Door Lock Relay LP Cluster, HVAC Controls, RR HVAC Controls, IP Switches, Radio Illumination, Door Switch Illumination DRL Relay

6-63

POSITION

16. 17. 18. 19. 20. 21. 22. 23. 24. A.?

B.?

NAME TURN B/U

RADIO- 1 BRAKE RADIO-B TRANS RR FOG Not Used Not Used RR HVAC PWR ACCY

PWR WDO

CIRCUITS PROTECTED Front Turn, RR Turn, Back-up Lamps, BTSI Solenoid Radio (Ign, Accy) 4WAL PCM, ABS, Cruise Control Radio (Battery), Power Antenna PRNDL, Automatic Transmission Rear Window Defog

RR HVAC Controls, HIGH, MED, LOW Relays Power Door Lock, Six-Way Power Seat, Keyless Entry Illumination Module Power Windows

?Circuit Breaker Do not use fuses of higher amperage than those recommended above. Fuse amperage levels are also imprinted on the fuse panel under the dash.

6-64

Capacities and Specifications Normal Maintenance Replacement Parts Replacement part numbers listed in this section are based on the latest information available at the time of printing, and are subject to change. If a part listed in this manual is not the same as the part used in your vehicle when it was built, or if you have any questions, please contact your GM truck dealer. These specifications are for information only. If you have any questions, see the service manual for the chassis or refer to the body manufacturer’s publications. Engine Identification -- Gasoline Engines Engine Type VIN Code Fuel System ‘Sequential Central Port Fuel Injection

? -Sequential Multi-Port Fuel Injection

“VORTEC” 4300

“VORTEC” 7400

“VORTEC” 5700

”VORTEC” 5000

V8 SF1 I

V6 SFI 1

V8 SFI 1

V8

SFI’

Wheel Nut Torque MODEL All

TORQUE 122 ft-lb (165 Nem)

Cooling System Capacity ENGINE “VORTEC” 4300 “VORTEC” SO00 “VORTEC” 5700 “VORTEC” 7400

VIN

QTY Without Rear Heater*

QTY With Rear Heater*

1 1 quarts ( 10.4 L) 17 quarts ( 16 L) 17 quarts (16 L) 23 quarts (2 1.8 L)

14 quarts (13.2 L) 20 quarts (18.9 L) 20 quarts (1 8.9 L) 26 quarts (24.6 L)

After refill, the level MUST be checked as outlined under “Engine Cooling System” in Section 5. *All quantities are approximate.

Crankcase Capacity ENGINE “VORTEC” 4300 “VORTEC” 5000 “VORTEC” 5700 “VORTEC” 7400

VIN

Quantity With Filter

4.5 quarts (4.3 L) 5 quarts (4.8 L) 5 quarts (4.8 L) 7 quarts (6.5 L)

All quantities are approximate. After refill, the level MUST be checked as outlined under “Engine Oil And Filter Recommendations” in Section 5. *Add an aS;lditis.ad quart (1 L) for RPO 5ZI and RPO KL5 Models.

6-66

Fuel Tank Capacity TYPE Standard Tank Cutaway Standard Tdnk Cutaway Optional Tank

All quantities are approximate.

QUANTITY

3 I gallons ( I 17.3 L) 35 gallons (132 L) 55 gallons (208.2 L)

:ermt Parts

Normal Rc --' Engine VIN Oil Filter Air Cleaner Filter'l' PCV Spark Plugs Fuel Filter Radiator Cap

Valve

"VORTEC" 4300

VORTEC" 5000

"VORTEC" 5700

"VORTEC" 7400

PFS2 A9 17C CV789C 4 1-932 GF48 1 RC36

PF1218 A9 17C c v 7 7 4 c 4 1-932 CF48 1 RC36

PF1218 A9 17C c v 7 7 4 c 4 1-932 GF48 1 RC36

PF1218 A917C c v 7 7 4 c 4 1-932 GF48 I RC36

'"For

severe dusty conditions, use AC Air Filter, Part No. 1236C.

6-67

Air Conditioning Refrigerants Not all air conditioning refrigerants are the same. If the air conditioning system in your vehicle needs refrigerant, be sure the proper refrigerant is used. If you’re not sure, ask your GM dealer.

TYPE

QTY Front

QTY Front and

Refrigerant R- 134a

Only 3.00 Ibs. (1.36 kg)

Rear

4.875 lbs. (2.21 kg)

6-68

Lamp and Bulb Data

LAMP OR BULB HEADLAMPS 2 Headlamp System (Sealed Beam System) Low/High Beam 4 Headlamp System (Composite Headlamp System) Low/High Beam High Beam

LAMP OR BULB EXTERIOR Front Sidemarker Lamp Front Park and Turn Lamp Rear Parking Lamp Rear Stop and Turn Lamp Back-up Lamp Back-up Lamp Rear Park, Stop and Turn Lamp CHMSL License Plate Lamp Underhood Lamp Reel Lamp

POWER RATING TRADE NO. AT 12.8V, WATTS

H6054

6052 9005

TRADE NO.

35/65

51 BO

194

2357NA

3057 3057 3156 1 IS6 1157 92 1 194 232 232

6-69

LAMP OR BULB INTERIOR Dome Lamps Reading Lamps IP Courtesy Lamp Stepwell Lamp Instrument Panel Compartment Lamp Ashtray Lamp Sunshade Vanity Mirror

LAMP OR BULB INSTRUMENT PANEL Daytime Running Lamps Indicator Charging System Indicator Lamp Instrument Cluster Illumination Headlamp Beam Indicator Turn Signal Indicator Brake Warning Indicator SIR (Air Bag) Safety Belt Warning Check Gages Indicator Malfunction Indicator ("Service Engine Soon") Lamp

6-70

TRADE NO.

21 1-2 21 1-2 194 194 194 194 74

TRADE NO.

74 74 194 74 74 74 74 74 74 74

214

NOTES

NOTES

6-72

Section 7 Maintenance Schedule

IMPORTANT. KEEP ENGINE OIL AT THE PROPER

LEVEL AND CHANGE AS

RECOMMENDED

This section covers the maintenance required for your vehicle. Your vehicle needs these services to retain its safety, dependability and emission control performance.

Have you purchased the GM Protection Plan? The Plan supple~nents your new vehicle warranties. See your Warranty and Owner Assistance hooklet, or your GM deuler for detuils.

Introduction Your Vehicle and the Environment Proper vehicle maintenance not only helps to keep your vehicle in good working condition, but also helps the environment. All recommended maintenance procedures are important. Improper vehicle maintenance can even affect the quality of the air we breathe. Improper fluid levels or the wrong tire inflation can increase the level of emissions from your vehicle. To help protect our environment, and to keep your vehicle in good condition, please maintain your vehicle properly.

7-1

How This Section is Organized The remainder of this section is divided into five parts: “Part A: Scheduled Maintenance Services” shows what to have done and how often. Some of these services can be complex, so unless you are technically qualified and have the necessary equipment, you should let your dealer’s service department or another qualified service center do these jobs.

Performing maintenance work on a vehicle can be dangerous. In trying to do some jobs, you can be seriously injured. Do your own maintenance work only if you have the required know-how and the proper tools and equipment for the job. If you have any doubt, have a qualified technician do the work.