1993 GMC Sierra Owners Manual

warranty folder from each of these manufacturers.

is a different brand than your road tires, you

for your area

or recreational body installed. Before

for information on

the

tires made by

If will have a tire

the pickup to

6-72

I CAUTION

Poorly maintained and improperly used

tires are dangerous.

all tires

as overloaded tires.

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: Underinflated tires pose the same danger The resulting accident could cause serious injury. Check frequently to maintain the recommended pressure. Tire pressure should be checked when your tires are cold. Overinflated tires are more by sudden impact, such as when you hit a pothole. Keep tires at the recommended pressure. Worn, old tires can cause accidents; or if your tires have been damaged, replace them. Even if it’s legal, don’t drive over have 16 inch tires. With 19.5 inch tires, don’t drive over 75 mph (1 20 km/h).

likely to be cut, punctured, or broken

85 mph (1 35 kmlh) if you

is badly worn,

If your tread

65 mph (105 kmlh).

on

in this section for more information

See “Special Tire Inflation” loading and inflation pressures at speeds above

Inflaiion-Tire Pressure The Certification/Tire label which is on the rear edge on the incomplete vehicle document in the cab, shows the correct inflation pressures for your tires, when they’re cold. a mile. been sitting for at least three hours You can operate some vehicles at reduced inflation pressures only when you’ll be carrying reduced loads. On those vehicles, the minimum cold inflation pressures for a typical reduced load are printed on the “Improved Ride Tire Pressure” label located on the driver’s door. Weigh the vehicle load on each tire and see the label for that load.

or driven no more than

to find the for the minimum cold inflation pressures

“Cold” means your vehicle has

of the driver’s door, or

6-73

Service & Appearance Care

When to Check: Check your tires once a month or more. tire pressure of the spare tire. How to Check: Use a good quality pocket-type gage Simply looking at the tires will not tell you the pressure, especially have radial tires-which may look properly inflated even if they’re underinflated. If your tires have valve caps, be sure prevent leaks by keeping out dirt and moisture. Special Tire Inflation

to put them back on. They help

Also, check the

to check tire pressure.

if you

If you have 16 inch tires on your vehicle, and: - You’ll be driving for very long at speeds of mph (120 kmlh) where legal, inflate tires the recommended cold inflation pressure.

- You’ll be driving for very long at speeds of

66 mph (1 05 km/h) to 75

10 psi (70 kPa) more than

76 mph (120 kmlh) to 85

mph (1 35 km/h) where legal, cold inflation pressure should be increased by 10 psi (70 kPa) and you must also reduce axle load capacity by 10%. Do not drive over 85 mph (135 k d h ) even if it’s legal.

6-74

- Inflation pressures should never exceed inflation specified for the maximum load

10 psi (70 kPa) above the of the tire.

If you have 19.5 inch radial tires - You’ll be driving for very long at speeds of

on your vehicle, and:

mph (110 km/h) where legal, inflate tires- the recommended cold inflation pressures and reduce axle load capacity by 4%.

66 mph (105 km/h) to 70

to 5 psi (35 kPa) more than

- You’ll be driving for very long at speeds of

71 mph (1 15 km/h) to 75

mph (120 kmlh) where legal, cold inflation pressures should be increased by 5 psi (35 kPa) and you must also reduce axle load capacity by 12% Do not drive over 75 mph (120 kmh) even if it’s legal.

- Inflation pressures should never exceed inflation specified for the maximum load

tire. For special operating conditions, such as carrying a slide-in camper, increase recommended cold tire pressures

20 psi (140 kPa) above the of the

by 10 psi (70 kPa).

6-75

Senrice & Appearance Care

- ur m a"

U 8 a i=

cn Y

6-76

PO204

r

6-77

K2691

Service & Appearance Cam

Tire lnspecfion and Rotation To make your mileages recommended Maintenance Services”

in the Maintenance Schedule. See “Scheduled in the Index.

tires last longer, have them inspected and rotated at the

K2655

Use this rotation pattern. If your vehicle has front tires with different load ratings as all season vs. onloff road) than the rear tires, don’t rotate your tires front to rear. After the tires have been rotated, adjust the front and rear inflation pressure as shown on the CertificationRire label. Make certain that all wheel properly tightened. See “Wheel Nut Torque”

in the Index.

or tread designs (such

nuts are

A Rust or dirt on a wheel, or on the parts to which -it is fastened, can wh.eel could a- :wheel, remove to the vehicle: to do this; but if you need- to, to get

make the wheel nuts become loose after a time. The come off and cause an accident. When you change- ’ any -rust or dirt from places where the wheel attaches ,: In an emergency, you can use a cloth or paper towel 3 be sure to use a scraper or wire brush later, -T all the rust or dirf off. See “Changing a Flat Tire” in the Index.

6-78

Dual Tire Rotation

Use one of these patterns on the front and rear.

if you have the same

tire sizes and

Use this pattern if your front and rear tires are different sizes or When you install dual wheels, be sure the vent holes lined up.

in the wheels are

6-79

load ranges

K2659

K2660 load ranges.

Service & Appearance Cam

When It’s Time for New Tires

K1656

to tell when it’s time

One way indicators, which will appear when your tires have only less of tread remaining. You need a new tire if:

for new tires is to check the treadwear

2/32 inch (1.6 mm) or

You can see the indicators at three places around the tire. You can see cord or fabric showing through the tire’s rubber. The tread or sidewall cord or fabric. The tire has a bump, bulge or split. The tire has a puncture, cut, or other damage that can’t be repalred well because of the size or location

is cracked, cut or snagged deep enough

of the damage.

to show

Dual Tire Operation If your vehicle has dual rear wheels, the outer tire will usually wear faster than the inner tire. Your tires will wear more evenly and rotate the tires periodically. high-crown roads, you can reduce tire tire pressure in the outer tires. Be sure pressures when no longer driving under those conditions.

If you’re going to be doing a

wear by adding to return to the recommended

last longer if you lot of driving on

5 psi (35 kPa) to the

6-80

I

r CAUTION

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

is badly underinflated, the catcl.

look at the Certificationflire

to give proper

load range, speed rating and construction

tires have an all-season tread design, “MS” (for mud and snow).

If your

it was new had a Tire

installed on your vehicle when

to have tires that are designed

tires with those not having a TPC Spec number,

Buying New Tires To find out what kind and size of tires you need, label. The tires 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 endurance, handling, speed rating, traction, ride and other things during normal service on your vehicle. the TPC number will be followed by a If you ever replace your make sure they are the same size, type (bias, bias-belted or radial) as your original tires. 1 CAUTION * Mixing tires could cause you - ) tires of different sizes or types Uniform Tire Qua/ity Grading The following information relates 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.) Treadwear The treadwear grade is a comparative rating based on the wear rate tire when tested under controlled conditions on a specified government tire graded 150 would wear one and a half course. For example, a times as well on the government course performance of tires depends upon the actual conditions however, and may depart significantly from the norm due to variations driving habits, service practices and differences climate.

vehicle may not handle properly, and you could have a crash. Be sure to use the same size and type tires on all wheels.

to the system developed by the United

(radial and bias-belted tires), the

to lose control while driving.

of their use,

in in road characteristics and

of the test (1 1/2) as a tire graded 100. The relative

If you mix

6-8 1

Service & Appearance Care

its ability

of the tire to degenerate

to sudden tire

to dissipate heat when

traction grade assigned

of asphalt and concrete. A

to this tire is based on braking

A (the highest), B, and C, representing the tire’s

to stop on wet pavement as measured under controlled

Traction-A, B, C The traction grades, from highest to lowest are: A, B, and C. They represent the tire’s ability conditions on specified government test surfaces tire marked C may have poor traction performance. Warning: The (straight-ahead) traction tests and does not include cornering (turning) traction. Temperature-A, B, C The temperature grades are resistance to the generation of heat and tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material and reduce tire life, and excessive temperature can lead 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 Warning: The temperature grade for properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure. These grades are molded on the sidewalls of passenger car tires. While the tires available as standard or optional equipment on General Motors vehicles may vary with respect to these grades, Motors performance standards and have been approved for use on General Motors vehicles. All passenger type (P Metric) tires must conform safety requirements Wheel AIignment and Tire Balance The wheels on your vehicle were aligned and balanced carefully at the life and best overall performance. factory to give you the longest tire 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 vibrating when driving on a smooth road, your wheels may need to be rebalanced.

law. this tire is established for a

to be reset. If you notice your vehicle

in addition to these grades.

all such tires meet General

tire that is

to Federal

6-82

If wheel nuts keep

If

it (except some aluminum wheels, which can

these conditions

is bent, cracked or badly rusted.

Wheel Replacement Re'place any' wheel that coming loose, the wheel, wheel bolts, and wheel nuts should be replaced. the wheel leaks air out,, replace if any of sometimes be repaired). See your GM dealer exists. Your dealer will know what 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 If you need to replace any of'your wheels, wheel bolts, or wheel nuts, replace them only with be sure to have the right 1 CAUTION

new GM original equipm-ent parts. This way, you will ,wheel, wheel bolts, .and wheel nuts for your vehicle.

it' replaces.

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

NnTICF

Used Replacement Wheels

* Putting a used wheel on your vehicle is dangerous.

1 how it's been used or how many miles

suddenly and cause an accident. a new GM original equipment wheel.

You can't know

it's been driven. It could fail

If you have to replace a wheel, use

6-83

Service & Appearance Care

Tire Chains

tire

if you have a tire size other than

LT265175R16 size tires, don’t use

If your vehicle has dual wheels or chains; they can damage your vehicle. __ you don’t have dual wheels or LT265/75R16, use tire chains only when you must. Use only “S” type chains that are the proper size for your tires. Install them on the tires of the rear axle. Tighten the slowly and TOIIOW the chain manufacturer’s instructions. chains contacting your vehicle, stop and retighten them. continues, slow down until it stops. Driving too fast with chains on will ’ nage your vehicle.

as tightly as possible with the ends securely fastened. Drive

SAE

If you can hear the If the contact

Appearance Cam 1 CAUTION L burst into flame

Cleaning products can be hazardous. Some are toxic. Others can if you strike a match or get them on a hot part

of

the vehicle. Some are dangerous zlosed space. When you use anything vehicle, be sure doors or windows when you’re cleaning the inside.

to clean your vehicle:

ter use these

to follow the instructions. And always open your

if you breathe their fumes

in a container

in a to clean your

Gasoline Benzene Naphtha Carbon Tetrachloride Acetone Paint Thinner Turpentine Lacquer Thinner Nail Polish Remover

They can all be hazardous-some more than others-and they can all damage your vehicle, too.

6-84

NOTICE

I Don’t use any

of these unless

!v will damage your vehicle:

anual says you can.

In many uses,

Reducing Agents

often to get rid of dust and loose dirt. Wipe vinyl with

Cleaning the Inside of Your Vehicle Use a vacuum cleaner a clean, damp cloth. Your GM dealer has two foam-type powdered cleaner. They will clean normal spots and stains very well. Here are some cleaning tips:

GM cleaners-a solvent-type spot lifter and a

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 brush may be used Use solvent-type cleaners don’t saturate the stained area. If a ring forms after spot cleaning, clean the entire area immediately will set.

if stains are stubborn.

to a clean area often. A soft

in a well ventilated area only. If you use them,

or it

Using Foam-Type Cleaner on Fabric

to remove any loose dirt.

Vacuum and brush the area 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 Don’t saturate the material. Don’t rub As soon as you’ve cleaned the section, use a sponge suds.

clean sponge.

it roughly.

to remove the

6-85

Service & Appearance Care

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 an

air hose, a hair dryer or a heat lamp.

careful with a hair dryer or

heat lamp. You could scorch me

~~~

lauric.

Wipe with a clean cloth.

if you have

Using Solvent-Type Cleaner on Fabric First, see to use solvent-type cleaner at all. stains will clean off better with just water and mild soap. If you need

to use it, then:

Some spots and

of the stain, to a clean section of the

little cleaner, light pressure and clean cloths

Gently scrape excess soil from the trim material with a clean, dull knife or scraper. Use very (preferably cheesecloth). Cleaning should start at the outside “feathering” toward the center. Keep changing cloth. When you clean a stain from fabric, immediately dry the area with an air hose, hair dryer, or heat lamp to help prevent a cleaning ring. (See previous NOTICE.) Fabric Protection Your vehicle has upholstery that has been treated with ScotchgardTM Fabric Protector, a 3M product. ScotchgardTM protects fabrics by repelling oil and water, which are the carriers of most stains. Even with still need to clean your upholstery often Further information on cleaning Minnesota, 1-800-642-61 67). Special Cleaning Problems Greasy or Oily Stains: Like grease, oil, butter, margarine, shoe polish, coffee with cream, chewing gum, cosmetic creams, vegetable oils, wax crayon, tar and asphalt.

is available by calling 1-800-433-3296

to keep it looking new.

this protection, you

(in

Carefully scrape off excess stain. Then follow the solvent-type instructions above. Shoe polish, wax crayon, tar and asphalt will stain seat fabric. They should be removed as soon as possible. Be careful, because the cleaner will dissolve them and may cause them to bleed.

if left on a vehicle

6-86

Non-Greasy Stains: Like catsup, coffee (black), egg, fruit, fruit juice, milk, soft drinks, wine, vomit, urine and blood.

Carefully scrape off excess stain, then sponge the place with cool water. If a stain remains, follow the foam-type instructions above. If an odor watedbaking soda solution: (250 ml) of lukewarm water. Finally, if needed, clean lightly with solvent-type cleaner.

1 teaspoon (5 ml) of baking soda

lingers after cleaning vomit

or urine, treat the area with a

to 1 cup

Combination Stains: Like candy, ice cream, mayonnaise, chili sauce and unknown stains.

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 or Leather Just use warm water and a clean cloth.

Rub with a clean, damp cloth to remove dirt. more than once. Things like tar, asphalt and shoe polish will stain off quickly. Use a clean cloth and solvent-type vinylheather cleaner.

You may have

if you don’t get them

to do it

Cleaning the Top of the Instrument Panel Use only mild soap and water to clean the top surfaces 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.

of the instrument

A Do not bleach or dye safety belts. If you

them. In a crash they might not be able to provide adequate protection. Clean safety belts only with mild soap and lukewarm water.

do, it may severely weaken

Glass Glass should be cleaned often. GM Glass Cleaner (GM Part a liquid household glass cleaner films.

will remove normal tobacco smoke and dust

No. 1050427) or

6-87

Service & Appearance Care

if the wiper

to be

it with water.

cloth soaked in full strength

with GM Windshield Cleaner, Bon-Ami Powder@ windshield is clean if beads do not form when

after using the windshield washer, or wax or other material may be on the blade or

Don’t use abrasive cleaners on glass, because they may cause scratches. Avoid placing decals on the inside rear window, since they may have 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. Cleaning the Outside of the Windshield and Wiper Blades If the windshield is not clear blade chatters when running, windshield. Clean the outside windshield (GM Part No. 1050011). The you rinse Clean the blade by wiping vigorously with a washer solvent. Then rinse the blade with water. Wiper blades should be checked on a regular basis and replaced when worn. Cleaning 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 it often with lukewarm or cold water. Don’t wash your vehicle or chemical detergents. Use liquid hand, dish or car washing (non-detergent) soaps. Don’t use cleaning agents that contain acid or abrasives. agents should be flushed promptly and not allowed they could stain. Dry the finish with a soft, clean chamois towel to avoid surface scratches and water spotting. High pressure vehicle washes may cause water to enter your vehicle. Finish Care Occasional waxing or mild polishing remove residue from the paint finish. products from your dealer. (See “Appearance Care and Materials’’ in the Index,) Your vehicle (except C 3500 HD) has a “basecoat/clearcoat” paint finish The clearcoat gives more depth and gloss to the colored basecoat.

of your vehicle may be necessary to You can get GM approved cleaning

in the direct rays of the sun. Don’t use strong soaps

to dry on the surface,

is to keep

it clean by washing

All cleaning or or a 100% cotton

r

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

To avoid damaging protective trim, never

to clean aluminum. A high polish, is recommended for all bright metal

is all that is usually needed. However, you may use GM Chrome.

to keep their luster. Washing

if necessary.

Protecting Exterior Bright Metal Parts Bright metal parts should be cleaned regularly with water Polish on chrome or stainless steel trim, Use special care with aluminum trim. use auto or chrome polish, steam or caustic soap coating of wax, rubbed to a parts. Aluminum Wheels (If So Equipped) Your aluminum wheels have a protective coating similar of your vehicle. Don’t use strong soaps, chemicals, chrome polish, abrasive cleaners on them because you rinsing thoroughly, a wax may be applied. 1 NOTICE

to the painted surface

or other

could damage this coating. After

off the

it.

use an automatic vehicle wash that

GM White Sidewall Tire Cleaner. You can

If you have aluminum wheels, don’t has hard silicon carbide cleaning brushes. These brushes can take I protective coating. White Side wall Tires Your General Motors dealer has a use a stiff brush with Weatherstrips These are places where glass or metal meets rubber. Silicone grease there will make them grease with a Sheet Metal Damage If your vehicle make sure the body repair shop applies anti-corrosion material to the parts repaired or replaced to restore corrosion protection. Foreign Material Calcium chloride and other salts, sap, bird droppings, chemicals from industrial chimneys, and other foreign matter can damage your vehicle’s finish Use cleaners that are marked safe for painted surfaces for these stains.

last longer, seal better, and not stick clean cloth at least every six months.

is damaged and requires sheet metal repair or replacement,

ice melting agents, road oil and tar, tree

if they remain on painted surfaces.

or squeak. Apply silicone

6-89

Service & Appearance Care

finish damage can

in the finish should be repaired

into a major

Finish Damage Any stone chips, fractures or deep scratches right away. Bare metal will corrode quickly and may develop repair expense. Minor chips and scratches can be repaired with touch-up materials available from your dealer or other service outlets. Larger areas of be corrected in your dealer’s body and paint shop. 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 the frame should be loosened before being flushed. dealer or an underbody washing system can do this for you. Chemical Paint Spotting Some weather and atmospheric conditions can create a chemical fallout. Airborne pollutants fall upon and attack painted surfaces on your vehicle. This damage can take two forms: blotchy, ringiet-shaped discolorations, and small irregular dark spots etched into the paint surface. Although no defect no charge to the owner, the surfaces of new vehicles damaged by this fallout condition within 12 months or 12,000 miles (20 000 km) of purchase, whichever comes first. This applies only to materials manufactured and by General Motors. Bodies, body conversions or equipment not made by General Motors are not covered.

in the paint job causes this, General Motors will repair, at

Your

sold or sold

6-90

Appearance Care Materials

PART SIZE

NUMBER 1050172

1050173 16

1050174

1050214 32

16 oz. (0.473L) oz. (0.473L) 16 oz. (0.473L) oz.

I050729

1051055 16

1051398

1052870 16

8 oz. (0.237L) oz. (0.473L) 8 oz. (0.237L) oz.

DESCRIPTION Tar and Road

USAGE

Removes old waxes, polishes, tar and road oil Oil Remover Removes rust and corrosion on Chrome Cleaner chrome and stainless steel and Polish Cleans white and black tires White Sidewall

on cloth

Tire Cleaner VinyVLeather Cleaner or vinyl Fabric Cleaner Spot and stain removal

and fabric

Spot and stain removal on leather

Glass Cleaner Glass cleaning and spot cleaning

on vinyls Cleans vinyl and cloth on door trim,

Multi-Purpose Powder Cleaner seats, and carpet-also tires and

Vinyl Top Cleaner Preservatone Vinyl

mats Cleaning of vinyl tops

top dressing

Spot Lifter Spot and stain removal on cloth

Wash-Wax

and fabric Exterior wash

Magic Mirror Cleaner-Polish

Exterior cleaner and polish

TO077

6-9 1

Service & Appearance Care

Vehicle identification Number (VIN)

KO641

It appears on a plate in the front

for your vehicle.

This is the legal identifier 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 Parts labels and the certificates of title and registration. Engine Identification The eighth character in your VIN is the engine code for your This code will help you identify your engine, specifications, and replacement parts in this section.

GM engine.

6-92

I

O f

6-93

PO1 72

Service & Appearance Care

Service Parts Identification Label

WMEELBASE

Service Par+s Identification

00 NOT REMOVE

VEHICLE <

IOENTlFlCATlOP NUMBER

P R l h l f D IN 0 5 A

PAINT TECHNOLOGY

ORDER NUMBER

EXTERIORCOLORS

)- MODEL DESIGNATION

OPTION CONTENT

You’ll find this label on the inside ever need

to order parts. On this label is:

of the glove box.

It’s very helpful if you

K2680

Your VIN. Its model designation. Paint information. A list of all production options

and special equipment.

Be sure that this label is not removed from the vehicle. Add-on Electrical Equipment

I NOTICE

lon’t add anything electrical iealer first. Some electrical equipment can damage your vehicle and the iamage wouldn’t be covered by your warranty. 3tther things from working as they should.

to your vehicle unless you check

So

just keep

with your

6-94

Specification Charts Replacement Parts Replacement part numbers listed 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 when it was built, or dealer. Engine Identification

if you have any questions, please contact your

in this section are based on the latest

in your vehicle

GM truck

Engine Code

Produced Fuel VIN Emissions

Liter

4.3 5.0 5.7

Displacement Type V6 V8 V8 V8 6.2 V8 6.2 V8 V8 7.4

6.5

System

TBI TBI H TBI Diesel Diesel Diesel TBI N

US., Can. US., Can.

BY U.S.

us. U.S. us. U.S.

*Light Duty Emissions with 8500 GVWR and below or: Heavy Duty Emissions with 8501 GVWR and above.

L. D. L. D. H.D. H.D.

TO035

Wheel Nut Torque

MODEL

I DESCRIPTION

C 1500 K 1500 & C-K 2500 C-K 2500 (w/C6P) C-K 3500 Single Rear Wheels C3500 Dual Rear Wheels C3500 HD -Front

--Rear

5 bolts (14mm) 6 bolts f14mm) 8 bolts (14mm) 120 8 bolts (14mm) 8 bolts (14mm) 5 bolts (5/8 in.) 10 bolts (5/8

in.)

TORQUE (160

120 ft. Ibs. 120 ft. Ibs. (1 60 N.m)

Nmm)

ft. Ibs. (160 Nmm) 120 ft. Ibs. (1 60 N-m) 140 ft. Ibs. (190 N-m) 175 ft. Ibs. (240 Nsm)

TO040

6-95

Service & Appearance Care

Cooling Systen

Capacity

VIN CODE

ENGINE

4.3L 5.0L 5.7L ~13500 H.D. 6.2L 6.2L 6.5L 7.4L w/3500 H.D.

QUA

ITITY*

Without NC

10.9 Quarts (10.3 Liters) 17.5 Quarts (16.5 Liters) 17.5 Quarts (1 6.5 Liters)

With NC

10.9 Quarts (10.3 Liters) 18 Quarts (17 Liters) 18 Quarts (17 Liters)

26.5 Quarts (25 Liters) 25 Quarts (23.5 Liters) 25 Quarts (23.5 Liters) 26.5 Quarts (25 Liters) 23 Quarts (22 Liters)

26.5 Quarts (25 Liters)

27 Quarts (25.5 Liters) 25 Quarts (23.5 Liters) 25 Quarts 123.5 Liters) 26.5 Quarts (25 Liters) 25 Quarts (23.5 Liters)

28.5 Quarts

(27 Liters)

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

5.

TO036

Crankcase Capacity

With Filter

VIN CODE

Without Filter

4 Quarts (3.8 Liters) 4 Quarts (3.8 Liters) 4 Quarts (3.8 Liters)

ENGINE 4.3L 5.0L 5.7L** 6.2L 6.2L 6.5L 7.4L** *All quantities are approximate. *After refill, the level MUST be checked as outlined under “Engine

4.5 Quarts (4.3 Liters) 5 Quarts (4.8 Liters) 5 Quarts (4.8 Liters) 7 Quarts (6.5 Liters) 7 Quarts (6.5 Liters) 7 Quarts (6.5 Liters) 7 Quarts (6.6 Liters)

ct Jt F t

6 Quarts (5.7 Liters)

And Filter Recommendations” in Section

5.

**Add one additional quart for C3500 toil filter should be changed at

HD Models.

EVERY oil change.

Oil

TO1 79

6-96

Air Conditioning Refrigerant Capacity

TYPE*

Refrigerant R-12

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

Fuel Tank Capacity

TYPE

Gasoline, Diesel

with Short Bed with Long Bed Four Door Model

Standard

Chassis-Cab Models

Standard (Side Tank) Optional (Rear Tank)

3500 HD Models

Standard (Side Tank) Optional (Rear Tank)

QUANTITY

2.5 Ibs. (1.1 34 kg)

If the air conditioning

is

TO223

.-

QUANTITY

26 Gallons (98 Liters) 34 Gallons (128 Liters)

34 Gallons (1 28 Liters)

22 Gallons (83 Liters) 30 Gallons (1 13 Liters)

21 Gallons 32 Gallons (121 Liters)

(80 Liters)

TO1 8C

All quantities are

for a completely dry tank and are approximate.

6-97

Service & Appearance Care

Light Bulb Data

6-98

I

I Power Rating

No.

at 12.8V, Watts Trade

Quantity

Lamp or Bulb Malfunction Indicator (“Service Engine Soon”) Upshift Indicator Glow Plugs Lamp* Low Coolant Lamp* Service Fuel Filter Lamp* “Diesel only

**Crew Cab

Only

74 74

74 74 only

tCanadian Vehicles

.7 .7 .7 74 .7 .7

t0390

Service Replacement Part and Filter Recommendations

PCV Valve CV789C cv774c cv774c

- Air Oil Filter PF51 PF35t PF35t PF35 PF35 PF35 PF35

Engine (VIN) 4.3 (Z) 5.0 (H) 5.7 (K) 6.2 (C) 6.2 (J)* 6.5 (F)* 7.4 (N) tFour Wheel Drive Vehicles use a *Heavy Duty Emission Engine ’*Use AC copper-cored resistor type spark plugs.

Cleaner A1 78CW A348C A348C A644C A644C A917C A348C

cv774c PF51

Spark** Plugs CR43TS .CR43TS .CR43TS

.CR43TS oil filter

-I

Fuel Filter GF481 GF481 GF481 TP 1 006 TP 1 006 TP1006 GF481

RC36 RC36 RC32 RC32 RC32 RC36

t0039

6-99

Service & Appearance Care

Fuses and Circuit Breakers

Name Gages

Turn-B/U EMCllgn

Inj. A Brake AC/Htr Ctsy

Park LP

P. Lps

StoplHaz.

Wiper Radio Accll g n Acc/Batt. Crank 4WD DRL

Circuits Protected

Cruise Control, 4 WD Display Illum. Rear Window Defogger Timer, Aux. Batt. Relay Feed, Safety Belt Buzzer Timer, Cluster Ign. Feed Back-up Lamps, Turn Signals T.C.C., Air Diverter, E.S.C., E.G.R., E.C.M. Ign., R.W.A.L. Brake Switch Throttle Body Injectors R.W.A.L., Cluster-Speed0 H.V.A.C. 4 WD, Aux. Batt. Relay Dome Lamp, Cargo Lamp, Ctsy. and Glove Box Lps. (TR-9), Radio (Memory-Clock) Horn Relay, Horn Feed, Cigar Lighter, Park Lamps C49 SW Illum., Headlamp “On” Warning, Radio Illum., H.V.A.C. Illum. Haz. Flasher, Seat Belt Buzzer, Stop Lmps., R.W.A.L. Memory Windshield Wiper, Washer Radio Feed Pwr. Windows Door Locks, Rear Window Defogger Crank, Discreet Four Wheel Drive Daytime Running Lights

Fuse 20 Amp

15 Amp 10 Amp

10 Amp 15 Amp 25 Amp 20 Amp

20 Amp

5 Amp

15 Amp 25 Amp 10 Amp

5 Amp 25 Amp 15 AmD

Circuit Breaker

30 Amp 30 Amp

TO038

An inline fuse 10 not use fuses of higher amperage than those recommended above.

is used for the underhood lamp

6-1 00

HTR AIC

BU

4WD

CTSY

t I

TRANS

PARK LP

PANEL LPS

STOPIHAZ

6-1 01

WIPER -4 ;3

CRANK

1 1

p050

8.

.?

.:

. . . . . .

:? . .

Scheduled Maintenance Services

-1

’

This section covers the maintenance required for your General Motors vehicle. Your vehicle needs these services to retain it’s safety, dependability, and emission control performance. ................................................................................. 7-3 A Word About Maintenance the Environment ...................................................................... 7-3 Your Vehicle and Recording Maintenance Services ......................................................................... 7-3 Scheduled Maintenance Services ........................................................................ 7-4 Selecting Your Vehicle’s Maintenance Services .......................................... 7-4 Gasoline Engines with Light Duty Emissions-

Maintenance Schedule I ............................................................................

7-6

Gasoline Engines with Light Duty Emissions-

Maintenance Schedule II ........................................................................... 7-8

Gasoline Engines with Heavy Duty Emissions-

Maintenance Schedule I .......................................................................... 7-1 0

Gasoline Engines with Heavy Duty Emissions-

Maintenance Schedule II ......................................................................... 7-1 2

6.2L and 6.5L Diesel Engines-

Maintenance Schedule I .......................................................................... 7-1 4

6.2L and 6.5L Diesel Engines-

Maintenance Schedule II ......................................................................... 7-1 6

7-1

Scheduled Maintenance Services

Explanation of Scheduled Maintenance Services ......................................

7-18 Owner Checks and Services .............................................................................. 7-22 Recommended Fluids & Lubricants ................................................................... 7-25 Maintenance Record ........................................................................................... 7-27 Service Station Checks ....................................................................................... 7-28

7-2

to use

in many other ways.

You may use your

in very hot, dusty weather.

it to work, to do errands, or

Your dealer can be relied upon

in good working You may drive very

need more frequent checks and replacements than in this section. So please read this section and to keep your vehicle GM owners choose

few times a week. Or you may drive long distances all vehicle in making

A Word About Maintenance We at General Motors want to help you keep your vehicle condition. But we don’t know exactly how you’ll drive it. short distances only a the time deliveries. Or you may drive Because of all the different ways people use their GM vehicles, maintenance needs vary. You may even you will find in the schedules If you have any questions on how note how you drive. in good condition, see your GM dealer, the place many to have their maintenance work done. proper parts and practices. Your Vehicle and the Environment Proper vehicle maintenance not only helps keep condition, but also helps the environment. All recommended maintenance procedures are important. Improper vehicle maintenance important components can significantly affect the quality Improper fluid levels or even the wrong tire inflation can increase emissions from your vehicle. keep your vehicle Recording Maintenance Services The Maintenance Record near the end you to record the maintenance performed on your vehicle. Whenever any to write it down in the Maintenance maintenance is performed, be sure Record. This will help you determine when your next maintenance should be done, In addition, it is a good idea may be needed CAUTION + CAUTION: Performing maintenance work on a vehicle can be

in good condition, please maintain your vehicle properly.

to qualify your vehicle for warranty repairs.

to keep your maintenance receipts. They

To help protect our environment, and

of this section provides a place for

your vehicle in good working

or the removal of of the air we breathe. the level of to help

dangerous. In trying to do some jobs, you can be seriously injured. Do your own maintenance work only know-how and the proper tools and equipment for the job. have any doubt. have

a aualified technician do the work.

if you have the required

If you

If you are skilled enough to do some work on your vehicle, you will probably want to get the service information publications and how to get them Assistance Information.” See “Service Publications’’

GM publishes. You will find a list of in the back of Section 8, “Customer

in the Index.

7-3

Scheduled Maintenance Services

Scheduled Maintenance Services This part tells you the maintenance services that you should have done and the times you should schedule them. to be happy with it. and wants you needs, you’ll know that GM-trained and supported service people will perform the work using genuine GM parts. These schedules are for vehicles that:

Your GM dealer knows your vehicle best If you go to your dealer for your service

carry passengers and cargo within the recommended limits. these limits on your vehicle’s Certification Label. See “Loading Vehicle” in the Index. are driven on regular road surfaces, and within legal driving limits. are driven off-road in the recommended manner. See the Index Under “Off Road Driving With Your Four Wheel Drive Vehicle.” use the recommended fuel. See “Fuel” in the Index.

You will find

Your

selecting The Proper Maintenance Services To find the proper maintenance schedule for your vehicle, you must know two things. What engine your vehicle has, and how you use your vehicle. Your engine type will tell you which chart to use, and your driving conditions will tell you which schedule to use. The charts are found later in this section. Selecting the Proper Maintenance Chart Your engine type (Gasoline or Diesel) and its emissions classification (Light Duty 3r Heavy Duty Emissions) will tell you which maintenance chart Find your Vehicle Identification Number (VIN), and look at the eighth character to see what your engine code is. Then use the following Engine Emissions Classifications table to find your emissions classification.

to use.

is on the plate on the top left corner

Your VIN the Certification Label and on the Service Parts Identification Label. See “Vehicle Identification Number” If your engine has more than one emissions classification, look at your Certification Label to see what your Gross Vehicle Weight Rating (GVWR) is. See “Loading Your Vehicle”

in the Index.

in the Index.

of your instrument panel,

7-4

VIN Code

~~~

Engine Description

V8/TBI

4.3L V6/TBI with 8500 GVWR and below 7~ ! . - with 8501 GWVR and' above 5.0L V8/TBI 5.7L V8/TBI with 8500 GVWR and belowk= with 8501 GVWR and abov-sd 6.2L V8IDiesel 6.2L V8/Diesel V8/Diesel 6.5L 7.4L

Except 454 with 454 SS Model

SS Model

J = tb-

-1

L. >c< g$ 'g

*&$

HD LD

LD HD LD HD HD

HD LD

TO268

L..

system.

NOTE: TBI Is a throttle body injection Selecting the Proper Maintenance Schedule Here ,is how to tell which schedule maintenance chart MAINTENANCE SCHEDULE Is any one of these true for your vehicle?

to use.

to follow once you find the proper

Most trips are less than 4 miles (6 kilometers). Most trips are less than temperatures are below freezing. The engine is at low speed most of stop-and-go traffic, or commercial use). You operate in dusty areas or off-road frequently. You tow a trailer

1.0 miles (16 kilometers), and the outside

the time (as in door-to-door delivery,

'.

n;r- .I . . 1: . >.' + - - - - . - . - . . r- IA m. :

- L .

- P ~ l * ~

is true for your driving, follow Schedule

If any one (or more) of these Schedule I is shown by MAINTENANCE SCHEDULE Follow Schedule II ONLY if none of the above conditions are true. Schedule- by II is

shown

a plus sign II

(t) on

the chart.

(.) on

chart.

the

1.

. .

dot

7-5

Scheduled Maintenance Services

GASOLINE ENGINES WITH LIGHT

DUTY EMISSIONS-

*An Emission Control Service **See “Explanation of Scheduled Maintenance Services” tTo determine the emissions classification

of your engine refer

Proper Maintenance Chart”

in this section.

in this section.

to “Selecting the

7-6

MAINTENANCE SCHEDULE It

7-7

Scheduled Maintenance Services

GASOLINE ENGINES WITH LIGHT DUTY EMISSIONS-

FOOTNOTES: *An Emission Control Service **See “Explanation of Scheduled Maintenance Services’’ in this section. tTo determine the emissions classification

of your engine refer

Proper Maintenance Chart” in this section.

to “Selecting the

TO332

7-8

MAINTENANCE SCHEDULE Ilt

7-9

Scheduled Maintenance Services

GASOLINE ENGINES WITH HEAVY DUTY EMISSIONS-

I If your driving conditions meet those specified

in “Scheduled Maintenance

in this section.

FOOTNOTES: ‘ An Emission Control Service ‘*See “Explanation of Scheduled Maintenance Services” A Also a Noise Emission Control Service I Applicable only t To determine the emissions classification

Chart” Maintenance Proper

to vehicles sold in the United States

section.

this

in

of your engine refer to “Selecting the

TO339

7-1 0

MAINTENANCE SCHEDULE It If your driving conditions do Maintenance Services” in

NOT meet those specified

this section, use Maintenance Schedule

in “Scheduled II (4.

THE SERVICES SHOWN ON THIS CHART ARE TO BE DONE AFTER 60,000 MILES AT THE SAME INTERVALS.

UP TO 60,000 MILES (100 000 km)

TO340

7-1 1

Scheduled Maintenance Services

GASOLINE ENGINES WITH HEAVY DUTY EMISSIONS-

7-1 2

MAINTENANCE SCHEDULE Ilt

If your driving conditions Maintenance Services” in this section, use Maintenance Schedule

do NOT meet those specified in “Scheduled

II h),

. e

54 57 60 90 95 100

THE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES (100 000 km) ARE TO BE DONE AFTER 60,000 MILES AT THE SAME INTERVALS.

TO335

7-1 3

6.2L AND 6.5L DIESEL ENGINES-

-0OTNOTES: rt Change filter every

15,000 miles (24 000 km), except when operating in dusty

conditions. Dusty conditions may require more frequent filter replacement. Extreme dust and dirt operating conditions checked as often as every 300 miles (483 km)

and replaced as necessary.

(off-road), may require the air filter

to be

* An Emission Control Service ** See “Explanation of Scheduled Maintenance Services” in this section. 1 Applicable only A Also, a Noise Control Service (applicable t This maintenance schedule applies

to trucks sold in the United States.

to all diesel engines available.

to vehicles with engine VIN Code

J).

TO330

7-1 4

MAINTENANCE SCHEDULE It

If your driving conditions

do NOT meet those specified in “Scheduled

THE SERVICES SHOWN ON ARE TO BE DONE AFTER

THIS CHART UP TO 60,000 MILES (100 000 km)

60,000 MILES AT THE SAME INTERVALS.

TO341

7-1 5

Scheduled Maintenance Services

6.2L AND 6.5L DIESEL ENGINES-

If your driving conditions meet those specified in “Scheduled Maintenance I (4.

Services” in this section, use Maintenance Schedule

7-1 6

MAINTENANCE SCHEDULE Ilt

THE SERVICES SHOWN ON THIS CHART UP TO 60,000 MILES ARE TO BE DONE AFTER 60,000 MILES

AT THE SAME INTERVALS.

(100 000 km)

TO336

7-1 7

Scheduled Maintenance Services

Explanation Of Scheduled Maintenance Services Below are explanations of the services listed in the maintenance charts.