
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.
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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.
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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 in 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.
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
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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.
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.
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.
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Appearance Care Materials Chart
I I I I I
I PARTNUMBER I SIZE DESCRIPTION USAGE
I050004
Removes soil and black marks
White Sidewall Tire Cleaner
16
oz. (0.473 L) 1050 I 74 Removes rust and
corrosion
Chrome
Cleaner and Polish
16 oz. (0.473 L) 1050 173 Also removes
old waxes and polishes
Tar and Road Oil Remover
16
oz. (0.473
Lj
IO501 72 Shines vehicle without scratching Chamois
2.75
sq. ft.
I05020
I
6 Ibs. (2.72 kg)
1050429 23
oz. (0.680 L) 1 OS0427 32
02. (0.946
Lj
10502 14
16 oz,. (0.473 L)
I 1051515 I 32 oz. (0.946 L)
I052870
8
oz. (0.237 L) 105291 8**
I6 oz. (0.473 L)
Magic Mirror Cleaner Polish
Spot and stain removal
Vinyl and
Leather Cleaner Exterior cleaner
and polish I
Glass Cleaner Cleans grease, grime and smoke film
Multi-Purpose Powdered Cleaner
Spot Lifter Cleans
vinyl, cloth, tires
and mats
Windshield washer solvent and antifreeze
Optikleen For cloth
Wash and Wax Concentrate
1~
-~ ~~ ~ ~~
Exterior wash I
Armor All Protector I I I
1052929 I 16 oz. (0.473 L) I Wheel Cleaner I Spray on wheel cleaner
I052930
Cleans
vinyl, leather and rubber
Armor All Cleaner 16 oz. (0.473 L) 12345002**’ Attracts and absorbs soils
Capture
Dry Spot Remover
8
0%. (0.237 L)
I 12345725 I 12 oz. (0.354 L) I Silicone Tire Shine .. . Shines tires - ., - -~ <- - - - ._
I
See your General Motors Parts Department for these products.
See “Fluids and Lubricants’’
in the Index.
* Not recomrr.,..ded for pigskin suede leather.
**Not recommended for use on instrument panel vinyl. I
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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
Type V6 V8
Engine “VORTEC” 4300 ”VORTEC” 5000
VIN Code W M
Fuel System SFI 1 SFI 1
‘Sequential Central Port Fuel Injection
Wheel Nut Torque
MODEL TORQUE
All 122 ft-lb (165 Nem)
“VORTEC” 5700 “VORTEC” 7400
V8
V8
R J
SF1 I SFI’
? -Sequential Multi-Port Fuel Injection
ProCarManuals.com

Maintenance Schedule
Short TripKity Definition -- Gasoline Engines i
Follow the Short Trip/City Maintenance Schedule if any
one of these conditions is true for your vehicle:
0
0
0
0
0
e
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 j.
Most trips are through dusty areas.
You frequently tow
a trailer or use a carrier on top of
your vehicle.
You frequently tow
a trailer or us-e a carrier on top of
your vehicle. (With some models, you should never
tow
a trailer. See “Towing a Trailer” in the Index.)
If the vehicle is used for delivery service, police, taxi
or other commercial application.
Short Trip/City Intervals -- Gasoline Engines
Every 3,000 Miles (5 000 km): Engine Oil and Filter
Change (or
3 months, whichever occurs first). Chassis
Lubrication (or
3 months, whichever occurs first).
Drive Axle Service (or
3 months, whichever
occurs first).
At 6,000 Miles (10 000 km) -- Then Every
12,000 Miles (20
000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Air Cleaner Filter
Inspection,
if driving in dusty conditions. Shields and
Underhood Insulation Inspection (GVWR above
8,500 Ibs. only). Thermostatically Controlled Engine
Cooling Fan Check (or every
12 months, whichever
occurs first). Front Wheel Bearing Repack (or at each
brake relining, whichever occurs first).
Every 30,000 Miles (50 000 km): Air Cleaner Filter
Replacement. Fuel Filter Replacement.
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (vehicles over
8600 GVWR
or driven under severe conditions only).
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Maintenance Schedule
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every 12 months, whichever occurs first).
Chassis Lubrication (or every 12 months, whichever
occurs first). Drive Axle Service.
At 7,500 Miles (12 500 km) -- Then Every
15,000 Miles
(25 000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Shields and
Underhood Insulation Inspection (GVWR above
8,500 lbs. only). Thermostatically Controlled Engine
Cooling Fan Check
(or every 12 months, whichever
occurs first).
Every 30,000 Miles (50 000 km): Fuel Filter
Replacement. Air Cleaner Filter Replacement.
Front Wheel Bearing Repack (or at each brake
relining, whichever occurs first).
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (vehicles over
8600 GVWR or
driven under severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection. Fuel
Tank, Cap and Lines
Inspection. Exhaust Gas Recirculation System
Inspection. Evaporative Control System Inspection.
Every 100,000 Miles (166 000 km): Cooling System
Service (or every
60 months, whichever occurs fist).
Spark Plug Wire Inspection. Spark
Plug Replacement.
Positive Crankcase Ventilation (PCV) Valve Inspection.
These intervals only sumnarize maintenance services.
Be sure to follow the complete maintenance schedule on
the.following pnges.
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