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ITEM
NO. SERVICE
6 Wheel Bearin? InsDection -
Inspect for wear and proper
adjustment. Relubricate the
bearings if grease is
contaminated.
7 Transmission (All) and
Transfer Case Differential
(Four-wheel Drive) Service
-
For the manual transmission and
transfer case differential, check
the fluid level every time the
oil is changed. See “Manual
Transmission Fluid” and
“Transfer Case” in the Index.
Inspect for damage and leaks
and change the fluid every
15,000 miles
(25 000 km) or
15 months for Schedule
I
conditions and every 30,000
miles (50 000 km) or 30 months
for Schedule
II conditions.
For the automatic transmission,
check the fluid level every time
the oil is changed. See
“Automatic Transmission
Fluid” in the Index. Inspect for
damage and leaks and change
ITEM
NO. SERVICE
8
9
the fluid every 15,000 miles
(25 0o0 km) or 15 months for
Schedule
I conditions and
100,000 miles ( 166 000 km) for
Schedule
I1 conditions. Replace
the automatic transmission cooler hoses every
45,000 miles
(75 000 km).
Propeller Shafts and U-Joints
Inspection
- Inspect for
looseness and damage.
Do this
every,.l5 months, or at 15,000
mile
(25 000 km) intervals, more
frequently if used off-road
or for
pulling a trailer. Tighten U-joint
flange bolts if necessary.
Freewheeling Hubs InsDection
/If Equipped) - Inspect the
locking front hubs for correct
operation. Repair or replace if
necessary. (Both hubs must
operate correctly for the front
axle to power the front wheels.)
ITEM
NO. SERVICE
10
11
Spark Plug Replacement” -
Replace spark plugs with the
proper type. See “Replacement Pans” in the Index.
Spark Plup Wire Replacement”
-
Replace wires. Check the boot fit
at the distributor and
at the spark
plugs. Operation in extreme cold
and/or on salted roads may require
more frequent replacement.
* An Emission Control Service.
t The U.S. Environmental Protection Agency
or the California Air Resources Board has
determined that the failure to perform this
maintenance item will not null@ 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 pegormed at the
indicated intervals and the maintenance be
recorded
in “Section E: Maintenance
Record.
’’
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Maintenance Schedule
sc 1 ection A: Scheduled Maintenance Services (Cont.) 1 ITEM
NO.
12
13
14
15
SERVICE
Positive Crankcase Ventilation
{PCV) Valve Replacement*
-
Inspect valve for proper
function. Replace
the valve
every
50,000 miles (83 000 km)
as well as any worn, plugged or
collapsed hases.
Exhaust
Gas Recirculation
{EGR) System Inspection* -
lpspect at 50,pOO mile
(83 000 km) intervals.
Replace every
30,000 miles
(50 ODD km) or more often under
dusty conditions.
Ask your dealer
for the proper replacement
intervals
for your driving
qonflitions.
Fuel Tank. Cap and Lines
wection*t
- Inspect fuel tank,
cap, lines and hoses
for damage
or-leaks. Inspect fuel cap gasket
for an even filler neck imprint or
any damage at
30,000 miles
(50 000 h). Replace parts as
Cleaner
Filter Replacement*-
ITEM
NO.
16
17
18
19
20
21
SERVICE
needed. Replace the cap and
gasket at
60,000 mile
(100 000 km) intervals.
Fuel Filter Re&uxmmt*
-
Replace the fuel filter every
30,000 miles (50 000 km), or
sooner if clogged.
Fuel Injector Inspectim*
-
Inspect at 100,000 mile
( 166 000 km) intervals,
Heated
Own Sensor
dacemea*
- Replace at
80,000 miles (133 000 km).
Etive va E-ns Canister
Redacernent"
- Replace at
100,000 mile
(166 000 km)
intervals.
me Control Module (ECM)
and Associated Sensors
Jnspectipn*
- Inspect at 100,000
mile (1.66 000 km) intervals.
lsslon Svstem
Hoses
Inspection" - Inspect at 60,000
mile (100 OD0 km) intervals.
0.
..
ITEM
NO.
22
23
SERVICE
Three-way CUytlc Convertex
Jnspection"
- Inspect at 100,000
mile (166 000 km) intervals.
At each si1 change, inspect the
entire exhaust system for leaks
and loose fittings, especially
if
the vehicle is used off-road.
E-e Timing and Dlstnbu tor
Check*
- Adjust the timing to the
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.
..
* An Emission Control Service.
t The US. Environmental Protection Agency
or
the California 4ir Resources Eoard has
determined that the failure to perjorm this
maintenance item
will not nullifjt the emission
warranty or
limit recall liabiliw prior to the
completion
of vehicle useful life. General
Motors, however, urges that all recommended
maintenance services be petfiimed at the
indicated intervals and the maintenance
be
recorded in "Section E: Maintenance
Record."
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ITEM
NO. SERVICE
24 Engine Idle Speed-Check*t -
Check the idle speed and adjust
it to underhood label
specifications.
Inspection”
- Inspect the valve
lash and adjust if necessary.
Inspection
- Check the power
steering gear box, pump and
hose connections for leaks or
damage. Check the fluid level on
the dipstick. See “Power Steering
Fluid” in the Index. Check the
drive belt for cracks, fraying and
wear. Check belt tension. There
should be 0.24-0.35”
(6-9 mm)
deflection when you press your
thumb midway between the
pulleys. Adjust or replace belt
as needed.
25 Valve Lash (Clearance)
26 Power Steering System
ITEM
NO. SERVICE
27 Wiring Harness and Connectors
Inspection*
- Inspect the
underhood wiring harness for
loose connections, chafed wires
and damage.
refill and bleed the brake system
every
60,000 miles (100 000 km).
Use only new DOT-3 fluid from
a sealed container.
28 Brake Fluid Service - Drain,
* An Emission Control Service.
The
U.S. Environmental Protection Agency
or the California Air Resources Board has
determined that the failure to pe~orm 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 in “Section
E: Maintenance
Record.”
r
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Maintenance Schedule
iection B: Owner Checks and Services
Listed below are owner checks and services which should be performed at the intervals specified to help ensure the safety,
dependability and emission control performance of your vehicle. Be sure any necessary repairs are completed at once. Whenever
any fluids or lubricants are added to your vehicle, make sure they are the proper ones, as shown in Section
D.
At Each Fuel Fill (It is important for you or a service station attendant to perform these underhood checks at each fuel fill.)
CHECK
OR SERVICE I WHAT TO DO
Engine Oil Level
Check the engine coolant level and add the proper coolant mix
if necessary. See “Coolant” in Engine Coolant Level Check the engine
oil level and add the proper oil if necessary. See “Engine Oil” in the Index for
further details.
the Index for further details.
Windshield Washer
Pull
the primary hood latch release handle inside the vehicle. The secondary latch should keep
Hood Latch Operation necessary. See “Windshield Washer
Fluid”
in the Index for further details.
Fluid Level Check
the windshield washer fluid level in
the windshield washer tank and add the proper fluid if
the hood from opening all the way when the primary latch is released. Make sure the hood closes
firmly. See “Hood Release” in the Index for further details.
. . .218
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