Page 310 of 387
Maintenance Schedule
.I
Long TriplHighway Intervals Long Trip/Highway Intervals
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (severe conditions only).
Positive Crankcase Ventilation
(PCV)
Valve Replacement.
Every 60,000 Miles (100 000 km): Engine Timing
and Distributor Check. Fuel Tank Cap Gasket
Replacement. Emission System Hoses Inspection.
Camshaft Timing Belt Replacement. Spark
Plug Wire
Replacement (or every 60 months, whichever occurs
first). Wiring Harness and Connectors Inspection
(or every 60 months, whichever occurs first). Brake
Fluid Service.
At 90,000 Miles (150 000 km): Camshaft Timing
Belt Inspection.
Every 100,000 Miles (166 000 km): Fuel Injector
Inspection. Evaporative Emissions Canister
Replacement.
These intervals only summarize maintenance services.
Be
sure to follow the complete maintenance schedule
on the following pages.
r
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I Short Trip/City Maintenance Schedule I
30,000 Miles (50 000 km) (Continued)
17 Replace spark plugs.
An Emission Control Service.
17 Replace air cleaner filter.
An Emission Control Service.
El Inspect fuel tank, cap and lines for damage or
leaks. Inspect fuel cap gasket for
any damage.
Replace parts as needed.
An Emission Control Service.
Rotate tires. See “Tire Inspection and Rotation”
in the Index for proper rotation pattern and
additional information. During tire rotation,
check brake calipers for fieedom
of movement.
Refer to the appropriate GM service manual for
proper caliper service procedures.
Change manual transmission fluid (or every
15 months, whichever occurs first).
0 Inspect the valve lash and adjust if necessary.
An Emission Control Service.
0 Replace fuel filter (or every 30 months,
whichever occurs first, or sooner
if filter is
clogged). An Emission Control Service.
0 Check engine idle speed and adjust it
to underhood label specifications.
An Emission Control Service.?
17 Inspect the locking front hubs (if equipped)
for correct operation (or every 3 months,
whichever occurs first). Repair
or replace
as necessary.
0 Inspect propeller shafts and u-joints for
looseness and damage
(or every 15 months,
whichever occurs first). Inspect more
frequently
if used off-road or for pulling
a trailer, Tighten u-joint flange bolts
if necessary.
I DATE I ACTUAL MILEAGE ISERVICED BY1
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Short TriplCity Maintenance Schedule L
Replace spark plug wires (or every
60 months, whichever occurs first).
An Emission Control Service.
0 Inspect the underhood wiring harness
for loose connections, chafed wires and
damage
(or every 60 months, whichever
occurs first).
An Emission Control Service.
0 Drain, refill and bleed the brake system.
Replace the camshaft timing belt.
An Emission Control Service.
0 Replace air cleaner filter.
An Emission Control Service.
0 Inspect fuel tank, cap and lines for damage
or leaks. Inspect fuel cap gasket for any
damage. Replace parts as needed.
An Emission Control Service.?
0 Rotate tires. See “Tire Inspection and Rotation”
in the Index for proper rotation pattern and
additional information. During tire rotation,
check brake calipers for fieedom of movement.
Refer to the appropriate
GM service manual for
proper caliper service procedures.
whichever occurs first).
An Emission Control Service. ?
Change manual transmission fluid (or every
‘15 months, whichever occurs first).
0 Inspect the valve lash and adjust if necessary.
An Emission Control Service.
Check engine idle speed and adjust it
to underhood label specifications.
An Emission Control Service.?
0 Inspect the locking front hubs (if equipped)
for correct operation (or every 3 months,
whichever occurs first). Repair or replace
as necessary.
0 Replace fuel filter (or every 30 months,
(Continued)
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Page 331 of 387

I Short Trip/City Maintenance Schedule I
90,000 Miles (150 000 km) (Continued)
0 Drain, flush and refill cooling system (or
every 30 months, whichever occurs first).
See “Engine Coolant” in the Index for
what to use. Inspect
hoses. Clean radiator,
condenser, pressure cap and neck. Pressure
test the cooling system and pressure cap.
An Emission Control Service.
0 Replace spark plugs.
An Emission Control Service.
0 Replace air cleaner filter.
An Emission Control Service.
0 Inspect fuel tank, cap and lines for damage
or leaks. Inspect fuel cap gasket for
any
damage. Replace parts as needed.
An Emission Control Service.
otate tires. See “Tire Inspection and Rotatio
in the Index for proper rotation pattern and
additional information.
During tire rotation,
check brake calipers for heedom of movement.
Refer to the appropriate
GM service manual for
proper caliper service procedures.
15 months, whichever occurs first).
An Emission Control Service.
whichever occurs first).
An Emission Control Service.
0 Check engine idle speed and adjust it
to underhood label specifications.
An Emission Control Service.?
0 Inspect the locking front hubs (if equipped)
for correct operation (or every 3 months,
whichever occurs first). Repair or replace
as necessary.
0 Change manual transmission fluid (or every
0 Inspect the valve lash and adjust if necessary.
0 Replace fuel filter (or every 30 months,
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I Short Trip/City Maintenance Schedule I
100,000 Miles (166 000 km)
Change automatic transmission fluid and
filter
if the vehicle is mainly driven under
one
or more of these conditions:
- In heavy city traffic where the outside
temperature regularly reaches
90 OF
(32" C) or higher.
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or
If you do not use your vehicle under any of these
conditions, the fluid andfilter do not require changing.
delivery service.
0 Replace Po sitive Cranl ltcase Ventilation
(PCV) valve.
Replace any worn, plugged or
collapsed hoses.
An Emission Control Service.
0 Inspect Exhaust Gas Recirculation (EGR)
system.
An Emission Control Service.
0 Inspect fuel injector.
An Emission Control Service.
0 Replace evaporative emissions canister.
An Emission Control Service.
I DATE ACTUAL MILEAGE SERVICED BY:
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I Long TriplHighway Maintenance Schedule I
Q Drain, flush and refill cooling system (or
every
30 months, whichever occurs first).
See “Engine Coolant” in the Index for
what to use. Inspect hoses. Clean radiator,
condenser, pressure cap and neck. Pressure
test the cooling system and pressure cap.
An Emission Control Service. 7
0 Replace spark plugs.
An Emission Control Service.
Replace air cleaner filter.
An Emission Control Service.
0 Inspect fuel tank, cap and lines for damage
or leaks. Inspect fuel cap gasket for any
damage. Replace parts as needed.
An Emission Control Service.
0 Change manual transmission fluid (or every
30 months, whxhever occurs first).
I7 Replace fuel filter (or every 30 months,
whichever occurs first, or sooner
if filter is
clogged).
An Emission Control Service.
17 Inspect the locking front hubs (if equipped)
for correct operation (or every
3 months,
whichever occurs first). Repair or replace
if necessary.
0 Inspect the valve lash and adjust if
necessary.
An Emission Control Service.
(Continued)
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Long Trip/Highway Maintenance Schedule
60,000 Miles (100 000 km) (Continued)
0 Drain, flush and refill cooling system (or
every
30 months, whichever occurs first).
See “Engine Coolant”
in the Index for
what to use. Inspect hoses. Clean radiator,
condenser, pressure cap and neck. Pressure
test the cooling system and pressure cap.
An Emission Control Service.
0 Replace spark plugs.
An Emission Control Service.
Replace air cleaner filter.
An Emission Control Service.
Inspect fuel tank, cap and lines and any
hoses for damage. Replace fuel tank cap
gasket.
An Emission Control Service,
17 Change manual transmission fluid (or every
30 months, whichever occurs first).
0 Replace fuel filter (or every 30 months,
whichever occurs first).
An Emission Control Service.
17 Inspect the locking front hubs (if equipped)
for correct operation (or every
3 months,
whichever occurs first). Repair or replace
as necessary.
0 Inspect the valve lash and adjust if
necessary.
An Emission Control Service.
0 Check engine idle speed and adjust it to
underhood label specifications.
An Emission Control Service.?
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I Long Trip/Highway Maintenance Schedule
90,000 Miles (150 000 km)
0 Change engine oil and filter (or every
7.5 months, whichever occurs first).
An Emission Control Service.
0 Clean and repack the front wheel bearings
(or at each brake relining, whichever
occurs first).
0 Inspect engine accessory drive belts (or
every
24 months, whichever occurs first).
An Emission Control Service.
0 Inspect camshaft timing belt.
0 Drain, flush and refill cooling system (or
every
30 months, whichever occurs first).
See “Engine Coolant”
in the Index for
what to use. Inspect hoses. Clean radiator,
condenser, pressure cap and neck. Pressure
test the cooling system and pressure cap.
An Emission Control Service.
An
Emission Control Service.
Replace spark plugs.
An Emission Control Service.
0 Replace air cleaner filter.
An Emission Control Service.
0 Inspect fuel tank, cap and lines and any
hoses for damage. Replace fuel tank cap
gasket. An Emission Control Service.
CI Change manual transmission fluid (or every
30 months, whichever occurs first).
[7 Replace fuel filter (or every 30 months,
whichever occurs first).
An Emission Control Service.
0 Inspect the locking front hubs (if equipped)
for correct operation (or every 3 months,
whichever occurs first). Repair or replace
if necessary.
0 Inspect the valve lash and adjust if
necessary. An Emission Control Service.
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