
Downloaded from www.Manualslib.com manuals search engine 8. Then replace the pressure cap. At any time during
this procedure if coolant begins to flow out of the
filler neck, reinstall the pressure cap. Be sure the
arrows on the pressure cap line
up like this.
Engine Fan Noise
This vehicle has a clutched engine cooling fan. When
the clutch is engaged, the fan spins faster
to provide
more air to cool the engine.
In most everyday driving
conditions, the clutch is not engaged. This improves fuel
economy and reduces fan noise. Under heavy vehicle
loading, trailer towing and/or high outside temperatures,
the fan speed increases when the clutch engages.
So you
may hear an increase
in fan noise. This is normal and
should
not be mistaken as the transmission slipping or
making extra shifts. It is merely the cooling system
functioning properly. The fan will slow down when
additional cooling is
not required and the
clutch disengages.
You may also hear this fan noise when you start the
engine. It will go away
as the fan clutch disengages.
5-20

Downloaded from www.Manualslib.com manuals search engine Section 6 Service and Appnara-- ~2 Care
Here you will find information about the care of your vehicle. This section begins with service and fuel information,
and then it shows how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted to its appearance care.
6-2
6-3
6-5
6-5
6-7
6-8
6-10
6- 14
6-15
6-1 9
6-20
6-2
1
6-22 6-23
6-26 6-27
6-27
Service
Fuel
Fuels
in Foreign Countries
Filling Your Tank
Filling a Portable Fuel Container
Checking Things Under the Hood
Engine Oil
Air Cleaner
Automatic Transmission Fluid
Manual Transmission Fluid
Hydraulic Clutch
Rear Axle
Four-wheel Drive
Engine Coolant
Radiator Pressure Cap
Thermostat Power Steering Fluid 6-28
6-29
6-32
6-33
6-38
6-40
6-49
6-50
6-52
6-54
6-57
6-58
6-58
6-58
6-64 6-64
6-65 Windshield Washer Fluid
Brakes
Battery
Bulb Replacement
Windshield Wiper Blade Replacement
Tires
Appearance Care
Cleaning the Inside of Your Vehicle
Care
of Safety Belts
Cleaning the Outside
of Your Vehicle
Appearance Care Materials Chart
Vehicle Identification Number (VTN)
Service Parts Identification Label
Electrical System
Replacement Bulbs Capacities and Specifications
Air Conditioning Refrigerants

Downloaded from www.Manualslib.com manuals search engine How to Add Fluid
Here’s how to add fluid. Refer to the Maintenance
Schedule to determine what kind of fluid to use. See
“Recommended Fluids and Lubricants” in the Index.
1. Remove the filler plug.
2. Add fluid at the filler plug hole. Add only enough
fluid to bring the fluid level up to the bottom of the
filler plug hole.
3. Install the filler plug. Be sure the plug is fully seated.
Hydraulic Clutch
The hydraulic clutch system in your vehicle is
self-adjusting.
A slight amount of play (1/4 inch to
1/2 inch or 6 rnm to 12 mm) in the pedal is normal.
It isn’t
a good idea to “top off” your clutch fluid. Adding
fluid won’t correct a leak. A fluid loss in this system
could indicate
a problem. Have the system inspected
and repaired.
When to Check and What to Use
Refer to the Maintenance Schedule, Owner Checks
and Services, to determine how often you should check
the fluid level in your clutch master cylinder reservoir
and for the proper fluid. See “Owner Checks and
Services” and “Recommended Fluids and Lubricants”
in the Index.
How to Check
The proper fluid should be added if the level does not
reach the bottom
of the diaphragm when it’s in place in
the reservoir. See the instructions on the reservoir cap.
6-20

Downloaded from www.Manualslib.com manuals search engine Name
RT TRN
RR PRK
TRL PRK
LT HDLP
RT HDLP
FR PRK
INT BAT
ENG
1
ECM B
ABS
ECM
1
HORN
BTSI
BN LP
NC
RAP
02
IGN B
Usage
Right Turn Signal Rear
Right Rear Parking Lamps
Trailer Parking Lamps
Left Headlamp
Right Headlamp
Front Parking Lamps I/P Fuse Block Feed
Engine Sensors/Solenoids, MAP,
CAM, PURGE, VENT
Engine Control Module,
Fuel Pump,
Module, Oil Pressure
Anti-Lock Brake System
Engine Control Module Injectors
Horn
Brake-Transmission Shift Interlock
Back-up Lamps
Air Conditioning
Retained Accessory Power Oxygen Sensor
Column Feed, IGN
2, 3,4
Name
DRL
FOG LP
IGN A
STUD #2
PARKLP LR PRK
IGN C
HTDSEAT
ATC
RRDFOG
HVAC
TRCHMSL
RR WIW
CRANK
HAZLP
VECHMSL
HTDMIR STOPLP
TBC
Usage
Daytime Running Lamps
Fog Lamps Starting and Charging IGN
1
Accessory Feeds, Electric Brake
Parking Lamps
Left Rear Parking Lamps
Starter Solenoid, Fuel Pump, PRNDL
Heated Seat
Electronic Transfer Case
Rear Defogger HVAC System
Trailer Center High-Mount Stop
Lamp
Rear Window Wiper
Clutch Switch, NSBU Switch
Hazard Lamps
Vehicle Center High-Mount Stop Lamp
Heated Mirror
S toplamps
Truck Body Computer
6-63

Downloaded from www.Manualslib.com manuals search engine At Least Twice a Year Automatic Transmission Check
Restraint System Check
Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages are working properly. Look
for any other loose or damaged
safety belt system parts. If you
see anything that might
keep a safety belt system from doing its job, have it
repaired. Have any torn or frayed safety belts replaced.
Also look for any opened or broken air bag coverings,
and have them repaired or replaced. (The
air bag system
does not need regular maintenance.)
Wiper Blade Check
Inspect wiper blades for wear or cracking. Replace blade
inserts that appear worn or damaged or that streak or
miss areas
of the windshield. Also see “Wiper Blades,
Cleaning” in the Index.
Manual Transmission Check
Check the transmission fluid level; add if needed. See
“Manual Transmission’’ in the Index. Check for leaks.
A fluid loss may indicate a problem. Have the system
inspected and repaired if needed. Check the transmission fluid level; add
if needed. See
“Automatic Transmission” in the Index.
A fluid loss
may indicate a problem. Check the system and repair
if needed.
Hydraulic Clutch System Check
Check the fluid level in the clutch reservoir. See
“Hydraulic Clutch Fluid” in the Index. A fluid loss in
this system could indicate a problem. Have the system inspected and repaired at once.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
specified in Part
D.
Body Lubrication Service
Lubricate all body door and fuel door hinges, rear
compartment hinges, latches and locks including the
glove box, console doors and the body hood and any moving seat hardware. Lubricate the hood safety lever
pivot and prop rod pivot.
Part D tells you what to use.
More frequent lubrication may be required when
exposed to
a corrosive environment.
7-40

Downloaded from www.Manualslib.com manuals search engine Starter Switch Check
A CAUTION:
When you are doing this check, the vehicle could
move suddenly.
If it does, you or others could be
injured. Follow the steps below.
1.
2.
3.
Brake-Transmission Shift Interlock (BTSI) Check (Automatic Transmission)
Before you start, be sure you have enough room
around the vehicle.
Firmly apply both the parking brake (see “Parking Brake’,
in the Index if necessary) and the regular brake.
NOTE:
Do not use the accelerator pedal, and be
ready to turn off the engine immediately if it starts.
On automatic transmission vehicles,
try to start the
engine in each gear. The starter should work only in
PARK (P) or NEUTRAL (N). If the starter works in
any other position, your vehicle needs service.
On manual transmission vehicles, put the shift lever
in NEUTRAL (N), push the clutch down halfway
and
try to start the engine. The starter should work
only when the clutch is pushed down all the way to
the floor. If the starter works when the clutch isn’t
pushed all the way down, your vehicle needs service.
When you are doing this check, the vehicle could
move suddenly.
If it does, you or others could be
injured. Follow the steps below.
1. Before you start, be sure you have enough room
around the vehicle. It should be parked on a
level surface.
2. Firmly apply the parking brake (see “Parking Brake”
in the Index if necessary).
NOTE: Be ready to apply the regular brake
immediately
if the vehicle begins to move.
3. With the engine off, turn the key to the RUN
position, but don’t start the engine. Without applying
the regular brake,
try to move the shift lever out of
PARK (P) with normal effort. If the shift lever
moves out of PARK
(P), your vehicle’s BTSI
needs service.
7-41

Downloaded from www.Manualslib.com manuals search engine Part D: Recommended Fluids
and Lubricants
NOTE: Fluids and lubricants identified below by name,
part number or specification may be obtained from
your dealer.
USAGE
Engine Oil
Engine Coolant Hydraulic Brake System
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 use only
GM Goodwrench@ DEX-COOL’
or Havoline@ DEX-COOL@
Coolant. See “Engine Coolant” in
the Index.
Delco Supreme
11 @ Brake Fluid
(GM Part
No. 12377967 or
equivalent DOT-3 Brake Fluid).
USAGE
Hydraulic Clutch
System
Parking Brake
Cable Guides
Power Steering
System
Manual
Transmission Automatic
Transmission Key Lock
Cylinders
FLUID/LUBRICANT
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,
10500 17
- 1 quart, or equivalent).
Synchromesh Transmission Fluid
(GM Part No. 12345349 or
equivalent).
DEXRON@-I11 Automatic Transmission Fluid.
Multi-Pu ose Lubricant,
Superlube
% (GM Part
No. 12346241 or equivalent).
7-45

Downloaded from www.Manualslib.com manuals search engine USAGE
Chassis
Lubrication
Differential,
Front and Rear
Axle
Transfer Case
Windshield
Washer Solvent
Rear Driveline
Center Spline
and Universal
Joints
FLUIDLUBRICANT
Chassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of
NLGI # 2, Category LB or
~~ ~
GC-LB.
Axle Lubricant (GM Part
No. 1052271) or
SAE 80W-90
GL-5 Gear Lubricant.
DEXRON@-I11 Automatic
Transmission Fluid.
GM Optikleen@ Washer Solvent
(GM Part
No. 1051515) or
equivalent.
Chassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of
NLGI # 2, Category LB or
GC-LB.
USAGE
Constant
Velocity
Universal Joint
Clutch Pushrod
to Clutch Fork
Joint
Hood Latch
Assembly,
Secondary Latch,
Pivots, Spring
Anchor and
Release Pawl
Hood and Door
Hinges
FLUIDLUBRICANT
Chassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of
NLGI # 2, Category LB or
GC-LB.
Chassis Lubricant (GM Part
No. 12377985 or equivalent) or
lubricant meeting requirements
of
NLGI # 2, Category LB or
Lubriplate@ Lubricant Aerosol
(GM Part No. 12346293 or
equivalent)
or lubricant meeting
requirements
of NLGI # 2,
Category LB or GC-LB.
GC-LB.
Multi-Pu ose Lubricant,
Superlube
% (GM Part
No. 12346241 or equivalent).
7-46