Downloaded from www.Manualslib.com manuals search engine Air Cleaner
To remove the round air cleaner filter for the 4.3L (VIN Z) engine, turn the
wing nuts to the left. Remove the cover and change the filter. Care should be
taken during reassembly
to ensure that the cover is on straight and the
wingnuts are properly tightened.
I“
a
To remove the square air cleaner filter for the 4.3L (VIN W) high
performance engine, loosen both wingnuts (one
on the duct and one on the
cover).
Lift the air cleaner assembly up from the vehicle. Open both clamps and
lift
off cover to change the filter. While reassembling the air cleaner assembly,
ensure that the air cleaner cover tabs are
fully inserted into the slots in the
air cleaner housing, the two wingscrews are secured, and the PCV air tube is
properly seated
in the left hand valve cover.
Refer to the Maintenance Schedule to determine when
to replace the air
filter.
See “Scheduled Maintenance Services’’
in the Index.
6- 14
Downloaded from www.Manualslib.com manuals search engine NAME
ECM I
PWR
WINDOW
WIPER
BRAKE DRL
CIRCUITS PROTECTED FUSE
Engine Control Module Power Windows 10 Amp
Windshield Wipers and
25 Amp
Washers
Four-wheel Anti-lock Brake 15 Amp
Module, Digital Ratio Adapter
Module, Speedometer, Auto
Transmission Converter
Clutch
Daytime Running Light
(Canada Only)
Trailer Wiring
Harness
CD PlayedRadio
TRAILER*
CD
PLAYER**
TCCM
Electric Shift Transfer Case
Module
AUX PWR** Aux. Pwr. Outlet
10 Amp
30 Amp
10 Amp
5 Amp
10 Amp
*In-line fuse
**Fuse is attached
to fuse block.
Service Replacement Part and Filter
Recommendafons
ENGINE (VIN)
OIL FILTER
AIR CLEANER
FILTER PCV VALVE
SPARK PLUGS
FUEL FILTER
RADIATOR CAP 4.3L (2)
PF52
A773C
CV789C
.CR43TSM
GF48 1
RC36
CIRCUIT
BREAKER
30 Amp
4.3L(W)
PF52
A1163C
cv774c
.CR43TSM
GF48 1
RC36
*Use copper-cored resistor type spark plugs.
6-68
Downloaded from www.Manualslib.com manuals search engine MAINTENANCE SCHEDULE /I
llf your driving conditions meet tho:
Item Ithis
Section (or see Index), use M;
Miles
(000)
Service
Oil Filter Change*-Every 12 Months, or
3 Cooling System Service* -Every 24 Months or
4 Air Cleaner Filter Replacement*
5 Front Wheel Bearing Repack (2WD Only)
6 Transmission Service
**
7 Fuel Filter Replacement*$
8 Spark Plug Replacement*
9 Spark Plug Wire Inspection*
10 Engine Timing Check*$ (Some
11 Fuel Tank, Cap and Lines Models)
Inspection*$
12 Engine Accessory Drive Belt
I Inspection*
13
I Tire and Wheel Rotation
14
I Drive Axle Service
15
I Brake Systems Inspection**
3 specified in “Scheduled Maintc
lntenance Schedule
II (0)
lance Services” in
* An Emission Control service
** See “Explanation of Scheduled Maintenance Services” in the Index
$ The California Air Resources Board has determined that the fail\
ure to perform this
maintenance item will not nullify the emission warranty
or limit recall liability prior to the
completion of vehicle useful life. General Motors, however, urges that all re\
commended
maintenance services be performed at the indicated intervals and\
the maintenance be
recorded.
THE SERVICES SHOWN ON THIS CHART
UP TO 60,000 MILES (100 000 km) ARE TO BE
DONE AFTER
60,000 MILES AT THE SAME INTERVALS.
T0803/Tl103
7-6
Downloaded from www.Manualslib.com manuals search engine Explanation Of Scheduled Maintenance Services
Below are explanations of the services listed in the maintenance charts.
The proper fluids and lubricants to use are listed in this section. Make sure
whoever services your vehicle
uses these. All parts should be replaced and
all necessary repairs done before you or anyone else drives the vehicle.
1.
2.
3.
4.
5.
ENGINE OIL AND OIL FILTER CHANGE* - ALWAYS USE
API SERVICE SH OR SG ENERGY CONSERVING I1 OILS OF THE
PROPER VISCOSITY. The “SH” or “SG” designation may be shown
alone or in combination with others, such as “SHKD”, or
“SH, SG,
CD,” or “SG/CD”, etc.
To determine the preferred viscosity oil for your
vehicle’s engine (e.g. SAE
5W-30), see “Engine Oil” in the Index.
CHASSIS LUBRICATION - Lubricate the front suspension, ball
joint, steering linkage, and transfer case shift linkage, parking brake
cable guides, propshaft splines, universal joints, brake pedal springs,
and clutch pedal springs at the intervals specified on the proper
maintenance schedule, or at every engine oil change, whichever comes
first.
Ball joints should
not be lubricated unless their temperature is 10°F
(-12°C) or higher. When the weather is cold, let them warm up before
lubricating them
or they could be damaged.
Also, be sure to check all the vehicle fluid levels at this time.
COOLING SYSTEM SERVICE* - Drain, flush and refill the
system with new or approved recycled coolant conforming to “GM
Specification
603%”’. See “Engine Coolant” in the Index for the
proper coolant and mixture to use in your vehicle.
Also inspect
the hoses and replace them if they are cracked, swollen, or
deteriorated. Clean the outside of the radiator and air conditioning
condenser. Wash the radiator neck. To ensure proper operation,
pressure test the radiator and cap.
AIR CLEANER FILTER REPLACEMENT” - Replace at
specified intervals. Ask your dealer for the proper replacement
intervals for your driving conditions.
FRONT WHEEL BEARING REPACK (2-WHEEL DRIVE
ONLY) - Clean and repack the front wheel bearings at each brake
relining,
or at the specified interval, whichever comes first.
*An Emission Control Service
7-7
Downloaded from www.Manualslib.com manuals search engine 6.
7.
8.
9.
10. 11.
12.
TRANSMISSION SERVICE:
Automatic Transmission
- Change the transmission fluid and filter
every 15,000 miles
(25 000 km) if the vehicle is mainly driven under
one or more of these conditions:
In heavy city traffic.
Where the outside temperature regularly reaches 90°F (32” C) or
In hilly or mountainous terrain.
Frequent trailer pulling.
0 Uses such as taxi, police, delivery or other commercial service.
If the vehicle is not used mainly under any of these conditions, change
the fluid and filter
every 30,000 miles (50 000 km). See “Automatic
Transmission Fluid”
in the Index for more information.
Manual Transmission - Transmission fluid does not require periodic
changing.
FUEL FILTER REPLACEMENT* $- Replace the fuel filter at the
specified interval or sooner
if clogged.
SPARK PLUG REPLACEMENT* - Replace spark plugs with the
type listed in Section 6. See “Specification Charts” in the Index.
SPARK PLUG WIRE INSPECTION* - Clean wires and inspect
for burns, cracks or other damage. Check the wire boot fit
at the
distributor and at the spark plugs. Replace wires as needed.
ENGINE TIMING CHECK AND DISTRIBUTOR CHECK*$ -
Adjust timing to underhood label specifications. Inspect the inside and
outside of the distributor cap and rotor for cracks, carbon tracking and
corrosion. Clean or replace as needed.
FUEL TANK, CAP AND LINES INSPECTION*$ - Inspect the
fuel tank, cap and lines for damage
or leaks. Remove fuel cap, inspect
gasket for an even filler neck imprint, and any damage. Replace parts
as needed.
ENGINE ACCESSORY DRIVE BELT INSPECTION* - Inspect
belt. Look for cracks, fraying, wear, and proper tension. Adjust or
replace as needed.
higher.
*An Emission Control Service
$=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 vehicle useful life. General
Motors, however, urges that all recommended maintenance services be
performed at the indicated intervals and the maintenance be recorded.
7-8
Downloaded from www.Manualslib.com manuals search engine FanNoise ...................................................... 5-18
Finish
Filter
Replacement Chart
.......................................... 6-68
Care
........................................................ 6-54
Damage ..................................................... 6-55
Automatic Transmission
........................................ 6-15
Brake
....................................................... 6-29
Capacities
................................................... 6-62
CoolantRecovery
............................................. 5-13
FrontAxle
................................................... 6-22
Leakcheck
.................................................. 6-31
ManualTransmission
.......................................... 6-18
Powersteering
............................................... 6-26
Radiator
..................................................... 5-15
RearAxle
................................................... 6-20
Recommended Fluids
.......................................... 7-13
Transfercase
................................................ 6-21
Windshield Washer ............................................ 6-28
FogLamps
..................................................... 2-50
Four-WheelDrive
.......................................... 2-31, 6-21
Transfer Case
...................................... 2-3 1,2-33, 6-21
FrontAxle
................................................... 6-22
Fuel
........................................................... 6-3
FillingYourTank
.............................................. 6-5
Fluid
Hydraulicclutch
.............................................. 6-20
Foreign Countries
.............................................. 6-4
Gage
....................................................... 2-76
Gasolines for Cleaner Air
........................................ 6-4
Tankcapacity
................................................ 6-63
Fuses and Circuit Breakers
................................... 6-60, 6-66
FuseBlock
.................................................. 6-61
Headlights
.............................................. 6-61, 6-63
Power Windows and Other Power Options
......................... 6-61
Trailer Wiring Harness
......................................... 6-61
Windshield Wipers
............................................ 6-61
Gages
......................................................... 2-76
FuelGage
................................................... 2-76
Odometer ................................................... 2-65
OilPressureGage
............................................. 2-72
Speedometer
................................................. 2-65
Tachometer
.................................................. 2-67
Trip Odometer
................................................ 2-66
Voltmeter
.................................................... 2-77
Coolant Temperature Gage ...................................... 2-70
4