Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine cooling system. The thermoskt stops the
tlow of coolant through the radiator until the coolant
reaches
a preset temperature.
When you replace your thermostat,
an AC@ thermostat
is recommended.
Power Steering Fluid
When to Check Power Steering Fluid
It is not necessary to regularly check power steering
tluid unless 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, 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 at the FULL COLD mark. If
necessary, add only enough fluid to bring
the level up to
the mark.
To prevent brake fluid contamination, never check or
fill
the power steering reservoir with the master cylinder
cover off.
What to Use
Refer to the Maintenance Schedule 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.
ProCarManuals.com
I Short Trip/City 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.
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 suspenslon, kingpin bushings,
steering linkage and rear driveline center splines.
*:!: Drive axle service:
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.
7-7
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{bong Trip/Highway 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
(1 66 000 km) at the same intervals.
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.
:i: *
0
0
Drive axle service:
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 engine oil change. If driving
in dusty areas or towing a trailer, drain fluid and
refill every
15,000 miles (35 000 km).
More frequent lubrication may be required for
heavy-duty use.
7-30
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Steering Column Lock Check
While parked, and with the parking brake set, try to turn
the key
to LOCK in each shift lever position.
The key should turn to LOCK only when the shift
lever is
in PARK (P).
The key should come out only in LOCK.
Parking Brake and Automatic Transmission
PARK
(P) Mechanism Check
Park on a fairly steep hill, with the vehicle facing
downhill. Keeping your foot
on the regular brake,
set the parking brake.
To check the parking brake: With the engine running
and transmission
in NEUTRAL (N), slowly remove
foot pressure from
the regular brake pedal. Do this
until the vehicle is held by the parking brake only.
To check the PARK (P) mechanism’s holding ability:
With the engine running, shift
to PARK (P). Then
release all brakes.
When you are doing this check, your vehicle
could begin to move. You
or others could be
injured and property could be damaged. Make
sure there is room in front of your vehicle in case
it begins to roll. Be ready to apply the regular
~ brake at once should the vehicle begin to move.
~
7-46
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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 service manual. See “Service and Owner
Publications”
in the Index.
Steering and Suspension 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.
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
excessive wear. Do not lubricate accelerator and cruise
control cables.
7-47
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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
Engine Oil
(Gasoline
Engine)
Engine Coolant
Coolant
Supplement
Sealer
FLUID/LUBRICANT
~~ ~
~~
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.
50150 mixture of clean water
(preferably distilled) and GM
Goodwrench@ DEX-COOL
TM or
Havo line@
DEX-COOL TM
(orange-colored, silicate-free)
antifreeze conforming to GM
Specification 6277M. See “Engine
Coolant”
in the Index.
GM Part No. 3634621 or
equivalent with
a complete flush
and refill.
USAGE
Hydraulic Brake
System
Parking Brake
Cable Guides
~~
Power Steering
System
Automatic
Transmission
Key Lock
Cylinders
Chassis
Lubrication
FLUIDLUBRICANT
Delco Supreme 1 1 @ Brake Fluid
(GM Part No. 1052535 or
equivalent DOT-3 brake fluid).
Chassis lubricant (GM Part
No. 1052497 or equivalent) or
lubricant meeting requirements
of NLGI Grade 2, Category LB
or GC-LB.
GM Power Steering Fluid
(GM Part
No. 1052884 - 1 pt.,
1050017
- 1 qt., or equivalent).
DEXRON@-111 Automatic
Transmission
Fluid.
Multi-Purpose Lubricant, Superlube@
(GM
Pd-t No. 1234624 1
or equivalent).
Chassis lubricant
(GM Part
No. 1052497 or equivalent) or
lubricant meeting requirements
of NLGI Grade 2, Category
LB
or GC-LB.
7-49
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Hearing Impaired. Customer Assistance .............. 8-3
Heating ........................................ 3-7
High-Beam Headlamps
.......................... 2-30
Highway Hypnosis
.............................. 4-2 1
Hill and Mountain Roads ......................... 4-21
Hitches. Trailer
................................. 4-32
Hood
Checking Things Under
......................... 6-6
Prop
........................................ 6-7
Release
...................................... 6-6
Hydroplaning
.................................. 4- 17
Horn
......................................... 2-28
Ignition Switch
................................ 2- I3
Inflation. Tire
.................................. 6-42
Inside Day/Night Rearview Mirror
................. 2-39
Brakesystem
................................ 7-48
Exhaust Systems ............................. 7-47
Radiator and Heater
Hose ...................... 7-47
RearAxle
................................... 7-48
Steering
.................................... 7-47
Suspension
.................................. 7-47
Throttle Linkage
.............................. 7-47
Brightness Control
............................ 2-36
Cleaning
.................................... 6-51
Cluster ..................................... 2-44
FuseBlock
.................................. 6-62
Interior Lamps
................................. 2-38
Inspections
.................................... 7-47
.................................... J ack.Tire
5-22
Jump Starting ................................... 5-2
Key Lock Cylinders Service ..................... 7-44
Keyless Entry System
............................ 2-5
Keys .......................................... 2-1
Labels
Certification ................................. 4-26
CeriificatiodTire
............................. 4-26
Service Parts Identification
..................... 6-60
Tire-Loading
. Information ...................... 4-26
Vehicle Identification Number
................... 6-60
Lamps ........................................ 2-35
Dome ...................................... 2-37
Interior
..................................... 2-37
On Reminder
................................ 2-36 .
On Warning ................................. 2-36
Panel
....................................... 2-35
Underhood
.................................. 2-38
Leaving
Your Vehicle with the Engine Running ....... 2-23
Lighter
....................................... 2-42
Lights
............................................
Air Bag Readiness ....................... 1-23.2-47
Anti-Lock Brake System Warning
............ 2.49, 4.6
Brake System Warning ......................... 2-48
Daytime Running Lamps Indicator
............... 2-49
Interior
..................................... 2-37
Safety Belt Reminder
...................... 1.8. 2.46
Service Engine
Soon .......................... 2-50
Loading Your Vehicle ........................... 4-26
9-5
ProCarManuals.com
Locks Cylinders
................................... 7-44
Door
........................................ 2-3
Key Lock Cylinder Service ..................... 7-44
PowerDoor
.................................. 2-3
Rear Door Security
............................. 2-4
Sliding Door Child Security
...................... 2-4
Steering Column Lock Check
.................... 7-46
Loss
of Control ................................ 4- 12
Lubricants and Fluids
............................ 7-49
Lubrication Service. Body
........................ 7-44
Maintenance. Normal Replacement Parts
........... 6-65
Maintenance Record
............................ 7-5 1
Maintenance Schedule ............................ 7- 1
Long Trip/Highway Definition ................... 7-5
Long Trip/Highway Intervals
..................... 7-6
Owner Checks and Services
..................... 7-43
Periodic Maintenance Inspections
................ 7-47
Recommended Fluids and Lubricants
............. 7-49
Scheduled Maintenance Services
.................. 7-3
Short Trip/City Definition
....................... 7-4
Short Trip/City Intervals
........................ 7-4
Maintenance. Underbody
......................... 6-58
Maintenance When Trailer Towing ................. 4-37
Malfunction Indicator Lamp
...................... 2-50
Manual Front Seat
............................... 1 - 1
Manual Mirror ................................. 2-40
Methanol
...................................... 6-3
Mirrors
....................................... 2-40
Convex Outside
.............................. 2-39 Inside
Day/Night Rearview
..................... 2-39
Manual
..................................... 2-40
Power Remote Control
......................... 2-39
Visor
Vanity ................................. 2-42
MMT
......................................... 6-3
Model Reference ................................. vi
Mountain Roads ................................ 4-21
Multifunction Lever
............................. 2-29
Neutral. Automatic Transmission
................. 2-18
New Vehicle Break-In ........................... 2-13
Nightvision
................................... 4-14
Noise Control System
............................ 6-9
Odometer
.................................... 2-45
Odometer. Trip
................................. 2-45
Off-Road Recovery
............................. 4- IO
Oil. Engine .................................... 6-11
Overheating Engine ............................. 5- IO
Owner Checks and Services ....................... 7-43
Owner Publications. Ordering
...................... 8-9
Paint Spotting. Chemical ......................... 6-58
Park
Automatic Transmission
....................... 2-17
Shifting Into
........ ; ........................ 2-21
Shifting Out of
............................... 2-23
9-6
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