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6-34 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.
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.
Fluid Leak Check
After the vehicle has been parked for awhile, inspect the
surface under the vehicle for water, oil, fuel or other
fluids. Water dripping from the air conditioning system
after it has been used is normal. If you notice fuel leaks
or fumes, the causes should be found and corrected
at once.
Battery
Your new vehicle comes with an ACDelco Freedom
battery. 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.
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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6-45
When rotating your tires, always use one of the correct
rotation patterns shown here.
After the tires have been rotated, adjust the front and
rear inflation pressures as shown on the
Certification/Tire label. Make certain that all wheel nuts
are properly tightened. See ªWheel Nut Torqueº in
the Index.
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
ªChanging a Flat Tireº in the Index.)
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6-69
Normal Maintenance Replacement Parts -- Gasoline Engines
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.
EngineªVORTECº 5700 V8 ªVORTECº 7400 V8
VIN R J
Oil Filter
AC Type PF1218AC Type PF1218
Air Cleaner Filter
AC Type A1300CAC Type A1300C
PCV Valve AC Type CV769C AC Type CV774C
Spark Plugs
AC Type 41
-932 AC Type 41-932
Spark Plug Gap 0.060 in. (1.52 mm) 0.060 in. (1.52 mm)
Fuel Filter AC Type GF626 AC Type GF626
Wiper Blades (Front) GM Part No. 22154886 GM Part No. 22154886
Wiper Blade Type (Front) Trico Trico
Wiper Blade Length (Front) 18 inches (45.0 cm) 18 inches (45.0 cm)
Wiper Blade (Rear) GM Part No. 22154396 GM Part No. 22154396
Wiper Blade Type (Rear) Trico Trico
Wiper Blade Length (Rear) 14 inches (35.5 cm) 14 inches (35.5 cm)
Four
-Wheel-Drive Vehicles -- use a PF52 oil filter.
A1301C High
-capacity air cleaner filter.
Short Trip/City Scheduled Maintenance -- Gasoline Engines
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7-8
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 ªOwner Checks and Servicesº and ªPeriodic
Maintenance Inspectionsº 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, transmission shift linkage, transfer case
shift linkage, parking brake cable guides, front axle
propshaft spline and brake pedal springs. Ball joints andkingpin bushings should not be lubricated unless their
temperature is 10F (
-12C) or higher, or they could
be damaged.
+ A good time to check your brakes is during tire
rotation. See ªBrake System Inspectionº under ªPeriodic
Maintenance Inspectionsº in Part C of this schedule.
** Drive axle service (see ªRecommended Fluids and
Lubricantsº in the Index for proper lubricant to use):
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 or off-road use.
Long Trip/Highway Scheduled Maintenance -- Gasoline Engines
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7-27
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 ªOwner Checks and Servicesº and ªPeriodic
Maintenance Inspectionsº 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, transmission shift linkage, transfer case
shift linkage, parking brake cable guides, front axle
propshaft spline and brake pedal springs. Ball joints and
kingpin bushings should not be lubricated unless their
temperature is 10F (
-12C) or higher, or they could
be damaged.
+ A good time to check your brakes is during tire
rotation. See ªBrake System Inspectionº under ªPeriodic
Maintenance Inspectionsº in Part C of this schedule.
** Drive axle service (see ªRecommended Fluids and
Lubricantsº in the Index for proper lubricant to use):
Locking Differential
-- Drain fluid and refill at first
engine oil change. At subsequent oil changes, check
fluid level and add fluid as needed.
Standard Differential
-- Check fluid level and add
fluid as needed at every engine oil change.
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8-9
Courtesy Rental Vehicle
When your vehicle is unavailable due to overnight
warranty repairs, your dealer may arrange to provide
you with a courtesy rental vehicle or reimburse you for a
rental vehicle you obtained, at actual cost, up to a
maximum of $30.00 per day supported by receipts. This
requires that you sign and complete a rental agreement
and meet state, local and rental vehicle provider
requirements. Requirements vary and may include
minimum age requirements, insurance coverage, credit
card, etc. You are responsible for fuel usage charges and
may also be responsible for taxes, levies, usage fees,
excessive mileage or rental usage beyond the
completion of the repair.
Generally it is not possible to provide a like
-vehicle as a
courtesy rental.
Additional Program Information
Courtesy Transportation is available during the
Bumper
-to-Bumper warranty coverage period,
but it is not part of the New Vehicle Limited Warranty.
A separate booklet entitled ªWarranty and Owner
Assistance Informationº furnished with each new
vehicle provides detailed warranty coverage information.Courtesy Transportation is available only at
participating dealerships and all program options, such
as shuttle service, may not be available at every dealer.
Please contact your dealer for specific information about
availability. All Courtesy Transportation arrangements
will be administered by appropriate dealer personnel.
Canadian Vehicles: For warranty repairs during the
Complete Vehicle Coverage period of the General
Motors of Canada New Vehicle Limited Warranty,
alternative transportation may be available under the
Courtesy Transportation Program. Please consult your
dealer for details.
General Motors reserves the right to unilaterally modify,
change or discontinue Courtesy Transportation at any time
and to resolve all questions of claim eligibility pursuant to the
terms and conditions described herein at its sole discretion.
General Motors and participating dealerships reserve the
right to deny a rental vehicle to anyone not possessing a
valid motor vehicle operators license in their name,
anyone who is under the influence of alcohol or drugs, or
anyone whose mental or physical abilities are impaired so
as to be unable to operate a motor vehicle safely.
Warranty Information
Your vehicle comes with a separate warranty booklet
that contains detailed warranty information.
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8-13
PUBLICATION FORM
NUMBEROrders will be mailed within 10 days of receipt. Please allow adequate time for postal
service. If further information is needed, write to the address shown below or call
1-800-551-4123. Material cannot be returned for credit without packing slip with return
information within 30 days of delivery. On returns, a re-stocking fee may be applied
against the original order. ORDER TOLL FREE
(NOTE: For Credit Card Holders Only)1-800-551-4123(Monday-Friday 8:00 AM ± 6:00 PM EST)
FAX Orders Only 1-313-865-5927
Service Manual
NOTE: Dealers and Companies please provide dealer or company name, and also the
name of the person to whose attention the shipment should be sent.
Mail completed order form to:
HELM, INCORPORATED P.O. Box 07130 Detroit, MI 48207
For purchases outside U.S.A. please write to the above address for quotation.
1999$90.00
1999
$50.00
1999
$15.00
1999
$10.00
TOTAL MATERIAL
Michigan Purchasers
U.S. Order Processing$5.00
Canadian Postage
GRAND TOTAL
add 6% sales tax
(See Note Below)
GM-CHE-ORD99 *(Prices are subject to change without notice and without incurring
obligation. Allow ample time for delivery.)Note to Canadian Customers: All listed prices are quoted in U.S. funds. Canadian residents
are to make checks payable in U.S. funds. To cover Canadian postage, add $11.50 plus the
U.S. order processing.
(CUSTOMER'S NAME) (ATTENTION)
(STREET ADDRESSÐNO P.O. BOX NUMBERS)
(CITY) (ZIP CODE)
DAYTIME TELEPHONE NO.(STATE)
AREA CODE
( )P
Check or Money
Order payable to
Helm, Inc. (USA funds
only Ð
do not send cash.)
VISA
Discover
Account
Number:
Expiration
Date mo/yr:
CUSTOMER SIGNATURE
S
ITEM DESCRIPTIONNAME YEAR VEHICLE MODEL
QTY.PRICE
EACH*TOTAL
PRICE1
9
9
9
G
M
H
I
P
T
OA
Y
M
E
N
T
Owner's Manual Without Portfolio Owner's Manual In Portfolio Car & Light Truck
Transmission Unit Repair
MasterCard
Check here if your billing address
is different from your shipping
address shown.
PUBLICATION FORM
NUMBER
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9-6
Instrument Panel 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brightness Control 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cluster 2-70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Block 6-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Lamps 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jack, Tire 5-22, 5-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key Lock Cylinder Service 7-39 . . . . . . . . . . . . . . . . . . . . . .
Keyless Entry System 2-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keys 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Labels
Certification/Tire 4-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Parts Identification 6-59 . . . . . . . . . . . . . . . . . . . . .
Tire-Loading Information 4-44 . . . . . . . . . . . . . . . . . . . . . .
Vehicle Identification Number 6-59 . . . . . . . . . . . . . . . . . . .
Lamps 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning Exterior 6-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dome 2-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior 2-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Reminder 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Latches, Seatback 1-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle with the Engine Running 2-27 . . . . . . .
Lighter 2-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lights
Air Bag Readiness 1
-31, 2-73 . . . . . . . . . . . . . . . . . . . . . . .
Anti-Lock Brake System Warning 2-75, 4-7 . . . . . . . . . . . .
Brake System Warning 2-74 . . . . . . . . . . . . . . . . . . . . . . . . .
Charging Warning System 2-73 . . . . . . . . . . . . . . . . . . . . . .
Check Gages 2-81 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Daytime Running Lamps Indicator 2-81 . . . . . . . . . . . . . . .
Headlamp High-Beam Indicator 2-81 . . . . . . . . . . . . . . . . .
Safety Belt Reminder 1-15, 2-72 . . . . . . . . . . . . . . . . . . . . .
Security 2-80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Engine Soon 2-76 . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Four-Wheel Drive 2-80 . . . . . . . . . . . . . . . . . . . . . .
Turn Signal and Lane Change Indicator 2-81 . . . . . . . . . . .
Loading Your Vehicle 4-44 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loading Your Vehicle for Off-Road Driving 4-15 . . . . . . . . . .
Locks 2-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Child Security 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder 7-39 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door 2-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Transmission Check 7-41 . . . . . . . . . . . . . . . . . . . .
Key Lock Cylinder Service 7-39 . . . . . . . . . . . . . . . . . . . . .
Power Door 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Window 2-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lubricants and Fluids 7-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lubrication Service, Body 7-39 . . . . . . . . . . . . . . . . . . . . . . . .
Luggage Carrier 2-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance, Normal Replacement Parts 6-69 . . . . . . . . . . .
Maintenance Record 7-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . .