5. Install a new filter element with the folds in the
down position.
Reverse Steps
1 through 4 to replace the air cleaner.
See “Normal Replacement Parts” for the proper filter
to use.
Refer to the Maintenance Schedule
to determine when to
replace the air filter and crankcase ventilation filter.
See “Scheduled Maintenance Services” in the Index.
I
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.
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.
Automatic Transmission Fluid
If your vehicle has a diesel engine, see “Automatic
Transmission Fluid” in the Diesel Supplement.
When to Check and Change
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.
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Brake Adjustment
Every time you make a brake stop, your disc brakes
adjust for wear.
Battery
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.
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.
Your vehicle was designed and tested with top-quality
GM brake parts. 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 approved
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. Every
new vehicle has
an ACDelco Freedom@ battery.
You never have to add water to one
of these. When it’s
time for a new battery, we recommend an ACDelco
Freedom battery. Get one that has the replacement
number shown on the original battery’s label.
If you have a diesel engine, you have two batteries. The
primary battery is located
on the passenger’s side of the
engine compartment. The second battery
is located on
the driver’s side framerail.
Vehicle Storage
If you’re not going to drive your vehicle for 25 days
or more, remove the black, negative
(-) cable from
the battery. This will help keep your battery from
running down.
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your vehicle has dual rear wheels, always use one of
me 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
Certificatioflire label. Make certain that all wheel
nuts are properly tightened. See “Wheel Nut Torque”
in the Index.
’ 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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Capacities and Specifications
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 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 “VORTEC” 4300 “VORTEC” 5000
Type V6 V8
VIN Code w M
Fuel System CSFI~ CSFI~
*Central Sequential Fuel Injection
2Sequential
Fuel Injection
“VORTEC” 5700
V8
R
CSFI~
“VORTEC” 7400
V8
J
SFI~
Wheel Nut Torque
MODEL TORQUE
All 140 ft-lb (190 N-m)
ProCarManuals.com
Short ”kip/City Maintenance Schedule -- Gasoline Engines
The services shown in this schedule up to 100,000 miles
(166
000 km) should be performed after 100,000 miles
(166
000 km) at the same intervals. The services shown
at
150,000 miles (240 000 km) should be performed at
the same interval after
150,000 miles (240 000 km).
See “Owner Checks and Services” and “Periodic
Maintenance Inspections” following.
Footnotes
The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior to the
completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the maintenance
be recorded.
# Lubricate the front suspension, kingpin bushings,
steering linkage and rear driveline center splines.
+ A good time to check your brakes is during tire
rotation. See “Brake System Inspection” under “Periodic
Maintenance Inspections” in Part
C of this schedule.
** Drive axle service (see “Recommended Fluids and
Lubricants” in the Index for proper lubricant to use):
e
e
e
Locking Differential -- Drain fluid and refill at first
engine oil change. At subsequent oil changes, check
fluid level and add fluid as needed.
If driving in
dusty areas
or towing a trailer, drain fluid and refill
every 15,000 miles
(25 000 km).
Standard Differential -- Check fluid level and add
fluid as needed at every oil change.
If driving in
dusty areas or towing a trailer, drain fluid and refill
every
15,000 miles (25 000 km).
More frequent lubrication may be required for
heavy-duty use.
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Long Tripmighway Maintenance Schedule -- Gasoline Engines I
The services shown in this schedule up to 100,000 miles
(166 000 km) should be performed after 100,000 miles
(166 000 km) at the same intervals. The services shown
at
150,000 miles (240 000 km) should be performed at
the same interval after
150,000 miles (240 000 km).
See “Owner Checks and Services” and “Periodic
Maintenance Inspections” following.
Footnotes
The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify
the emission warranty or limit recall liability prior
to the
completion
of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and
the maintenance
be recorded.
# Lubricate the front suspension, kingpin bushings,
steering linkage and rear driveline center splines.
+ A good time to check your brakes is during tire
rotation. See “Brake System Inspection” under “Periodic
Maintenance Inspections”
in Part C of this schedule.
** Drive axle service (see “Recommended Fluids and
Lubricants” in the Index for proper lubricant
to use):
0 Locking Differential -- Drain fluid and refill at first
engine
oil change. At subsequent oil changes, check
fluid level and add fluid as needed.
fluid as needed at every engine oil change.
0 Standard Differential -- Check fluid level and add
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Just dial GMC Roadside Assistance at
1 -800-GMC-8782 (1-800-462-8782, Roadside
Assistance prompt) to reach
a qualified representative
who can assist
you.
Your Roadside Assistance representative will ask for the
following information when your call
is received:
0 Vehicle Identification Number (VIN)
0 Name and home address
Canadian Roadside Assistance
Vehicles purchased in Canada have an extensive
Roadside Assistance program accessible from anywhere
in Canada or the United States. Please refer
to the
separate brochure provided by the dealer or
call
1-800-268-6800 for emergency services.
0 Telephone number and location from which you
0 Location, license plate number and color of your
0 Mileage of vehicle and description of problem
are
calling
GMC truck
Roadside Assistance
is available 24 hours a day, 7 days
a week,
365 days a year, including weekends and
holidays. Should you have any questions about roadside
assistance, call the GMC Roadside Assistance Center
or
contact your dealer.
Roadside Assistance is not part of or included in the
coverage provided
by the New Vehicle Limited Warranty.
GMC reserves the right to make any changes or
discontinue the Roadside Assistance program ut any
time without notification.
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Courtesy Transportation
GMC Commitment Plus offers courtesy transportation
for customers when obtaining warranty service.
This program is offered in conjunction with the
3 year/36,000 mile
(60 000 km) Bumper to Bumper
New Vehicle Limited Warranty.
Courtesy transportation includes:
One way shuttle ride from the dealership (up to
10 miles ( 16 km)) for same-day warranty repairs.
A loaner vehicle will be made available for overnight
warranty repairs up to a five day maximum, or up to a
$30 allowance for a rental vehicle, cab, bus or other
transportation in lieu of a loaner. (Bringing vehicles
in
late in the day, for service on the next day, does not
constitute overnight repairs.)
Gas allowance of up to $10 a day for rides provided
by another person
(Le., friend, neighbor, etc.) in
lieu
of rental for overnight warranty repair up to a
five day maximum.
All Courtesy Transportation arrangements will be
administered
by your GMC dealership service
management.
All requests should reflect actual costs
up to and not to exceed the maximum allowable
dollur limits.
Some state insurance regulations make it impractical
to rent vehicles
to people under 21 years of age. If
you are under 21 and have difficulty renting a vehicle,
GMC will reimburse up
to $30/day for documented
transportation you receive.
The Commitment Plus Courtesy Transportation Program
is not part of the Bumper to Bumper Limited Warranty.
GMC reserves the right
to make any changes or
discontinue the Courtesy Transportation Program at
any
time without notification.
For additional program details, contact your GMC dealer.
In Canada, please consult your GM dealer for
information on Courtesy Transportation.
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