When you lift the I~ood, you'll see these items:
A. Battery
B. Coolant Re,covery
Tank
C. Engine Oil Dipstick
D. Transmission Dipstick C. Brake Master Cylinder
E. Engine Oil Fill H. Air Cleaner
E Power Steering Reservoir I. Windshield Washer Fluid
6-8
Engine Oil Additives
Don't add anything to your oil. YOLK GM dealer is ready
to advise
if you think something should be added.
When to Change Engine Oil
If any one of these is true for you. LIS~ the short trip/city
. maintenxm schedule:
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).
0 You operate your vehicle in dusty areas or
off-road frequently.
YOLI 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.
Remote Oil Filter (Four-wheel Drive)
The ;1ccess door for the remote oil filter is in the steering
linkage shicld
assembly located under the radiator
support. Twist the
screw to unlock or lock the door.
Make sure
if you open the door, it is securely closed
when you are finished.
6-12
When to Check Power Steering Fluid
It is not necessary to regularly check power steering
fluid ~rnless
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, wipe the cap and
the top of the reservoir clean, then 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 between the
ADD and FULL marks.
If necessary, add only enough fluid to bring the level up
to the proper range.
What to Use
Windshield Washer Fluid
What to Use
When you need windshield washer fluid. be sure to read
the manuf‘~cturer’s instructions before ~rse.
If you will be
operating your
\:chicle in an area where the temperature
may fall below freezing,
LIS~ a fluid that has sufficient
protection against freezing.
Adding Washer Fluid
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.
Open
the cap labeled WASHER FLUID ONLY with the
washer symbol 011 it. Add washer tluid until the tank is full.
6-27
Short Trip/City Maintenance Schedule
The services shown in this schedule LIP to 100.000 miles
( I66 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
-f 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. ball joints. steering
linkage and transfer case shift linkage. parking brake
cable guides, propshaft splines. Lulivel-sal joints and
brake
pedal springs.
+ A good time to check your brakes is during tire
rotation. See "Brake System Inspection" under "Periodic
Maintenance Inspection"
in Part C of this schedule.
'i::k Drive axle service (see "Recommended Fluids and
Lubricants"
in the Index for proper lubricant to use):
0
0
0
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 tluid and refil
every 15,000 miles
(25 000 km).
Standard Differential
-- Check fluid level and add
tluid
as needed at every oil change. If driving in
dusty areas or towing a trailer, drain fluid and refil
every
15,000 miles (25 000 km).
More frequent lubrication may be required
for
heavy-duty or off-road use.
1
1
7-7
I Long Trip/Highway Maintenance Schedule
The services shown in this schedule up to 100,000 miles
( I66 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
3' The U.S. Environmental Protection Agency 01- 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 Ihe front suspension, ball joints, steering
linkage and transfer case
shift linkage, parking brake
cable guides, propshaft splines, universal
joints and
brake pedal springs.
+ 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.
0 Standard Differential -- Check fluid level and add
fluid as needed at every engine
oil change.
More frequent lubrication may be required for
heavy-duty or off-road use.
7-30
Part C: Periodic Maintenance
Inspections
Listed below are inspections and services which should
be performed at least twice
a year (for instance. each
spring and fall). You should let
your GM dealer's
service department or other qualified service center
do
these jobs. Make sure any necessary repairs are
completed
at once.
Proper procedures to perform these services may be
found
in a GM service nnanual. See "Service and Owner
Publications"
in the Index.
Steering, Suspension and Front Drive Axle
Boot
and Seal Inspection
Inspect the front and rear suspension and steering
system for damaged. loose or missing parts, signs
of
wear or lack of lubrication. Inspect the power steering
lines
and hoses for proper hook-up, binding, leaks,
cracks, chafing, etc. Clean and then inspect the drive
axle boot seals for damage, tears or leakage. Replace
seals
if necessary.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system. Look for broken, damaged,
missing or out-of-position parts
as well as open seams,
holes. loose connections
or other conditions which could
cause
a heat build-up in the floor pan or could let
exhaust fumes into the vehicle. See "Engine Exhaust"
in
the Index.
Radiator and Heater Hose Inspection
Inspect the hoses and have them replaced if they are
cracked. swollen or deteriorated. Inspect
all pipes,
fittings
and clamps; replace as needed.
Throttle Linkage Inspection
Inspect the throttle linkage for interference or binding,
and for damage or missing parts. Replace parts
as
needed. Replace any cables that have high effort or
excessi\.e wear.
Do not lubricate accelerator and cruise
control cables.
7-50
Part D: Recommended Fluids and
Lubricants
NOTE: Fluids and lubricants identified below by name.
part number or specification may be obtained from your
GM dealer.
USAGE
ine Oil
Engine Coolant
FLUIDLUBRICANT
Engine oil with the American
Petroleum Institute Certified For
Gasoline Engines "Starburst" symbol
of the proper viscosity. To
determine the preferred viscosity
for your vehicle's engine. see
"Engine Oil"
in the Index.
50/50 mixture of clean water
(preferably distilled) and
LIS~ only
GM Goodwrench@ DEX-COOL
TM
or Havoline@ DEX-COOL"
coolant. See "Engine Coolant.'
in
the Index.
USAGE
Coolant
Supplement
Sealer
Hydraulic Brake
System
Hydraulic Clutch
System
Parking Brake
Cable Guides
Power Steering
System
FI,UID/LUBRICANT
GM Part No. 3634621 or
equivalent
with a complete flush
and refill.
Delco Supreme
1 I @ Brake Fluid
(GM Part
No. 12377967 01-
equivalent DOT-3 brake fluid).
Hydraulic Clutch Fluid
(GM Part
No. 12345347 or equivalent
DOT-3 brake fluid).
Chassis lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of NLGI # 2,Category LB
or GC- LB .
GM Power Steering Fluid (GM
Part
No. 1052884 - 1 pint,
I0500 17 - 1 quart, or equivalent).
7-52
1997 GMC SERVICE PUBLICATIONS ORDERING INFORMATION
The following publications covering the operation and servicing of your vehicle can be purchased by filling G
the Service Publication Order Form in this book and mailing it in with your check, money order,
or credit card information to Helm, Incorporated (address below.)
CURRENT PUBLICATIONS FOR 1997 GMC
SERVICE MANUALS
Service Manuals have the diagnosis and repair information
on engines, transmission, axle, suspension, brakes,
electrical, steering, body, etc.
RETAIL SELL PRICE:
$90.00
TRANSMISSION, TRANSAXLE, TRANSFER CASE
UNIT REPAIR MANUAL
This manual provides information on unit repair service
procedures, adjustments and specifications for the
1997
GM transmissions, transaxles and transfer cases.
RETAIL SELL PRICE:
$40.00
SERVICE BULLETINS
Service Bulletins give technical service information needed
to knowledgeably service General Motors cars and trucks.
Each bulletin contains instructions
to assist in the
diagnosis and service of your vehicle.
PLEASE COMPLETE THE ORDER FORM SHOWN ON
THE FOLLOWING PAGE AND MAIL TO:
Helm, Incorporated P.0. Box 07130 Detroit, MI 48207
OWNER’S INFORMATION
Owner publications are written directly for Owners and
intended
to provide basic operational information about tl
vehicle. The owner’s manual will include the Maintenancl
Schedule for all models.
In-Portfolio: Includes a Portfolio, Owner’s Manual and
Warranty Booklet.
RETAIL SELL PRICE:
$1 5.00
Without Portfolio: Owner’s Manual only.
RETAIL SELL PRICE:
$1 0.00
CURRENT & PAST MODEL ORDER FORMS
Service Publications are available for current and past
model
GM vehicles. To request an order form, please
specify year and model name
of the vehicle.
OR ORDER TOLL FREE: 1-800-782-4356
Monday-Friday 8:OO AM - 6:OO PM Eastern Time
For Credit Card Orders Only (VISA-Mastercard-Discovet