Page 364 of 404

Long Trip/Highway Maintenance Schedule -- Gasoline Engines
75,000 Miles (125 000 km)
0 Change engine oil and filter (or every
12 months, whichever occurs first).
An Ernission Control Service.
0 Lubricate chassis components; see footnote #
(or every 12 months, whichever occurs first).
0 Check readfront axle fluid level and add
fluid as needed. Check constant velocity
joints and axle seals for leaking.
**
0 Vehicles With GVWR Above 8,500 lbs.
Only: Inspect shields and underhood
insulation for damage
or looseness. Adjust
or replace as required. This is a Noise Emission
Control Service. Applicuble only to vehicles sold in
the United States.
0 If your engine has a thermostatically
controlled cooling fan, inspect all hoses
and ducts for proper hook-up (or every
12 months, whichever occurs first). Be sure
the valve works properly.
This is a Noise
Emission Control Service. Appliccrble
only to
vehicles
sold in the United States.
DATE ACTUAL MILEAGE SERVICED BY
7-38
ProCarManuals.com
Page 365 of 404

1 Long Tripmighway Maintenance Schedule -- Gasoline Engines I
82,500 Miles (137 500 km)
Change engine oil and filter (or every
12 months, whichever occurs first).
AI? Emissiorz Control Service.
0 Lubricate chassis components; see footnote #
(or every 12 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid
as needed. Check constant velocity joints and
axle seals for leaking.
**
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 freedom of movement. Refer to the appropriate
GM service manual for
proper caliper service procedures.
I DATE I ACTUAL MILEAGE lSERVICED BY I
90,000 Miles (150 000 km)
0 Change engine oil and filter (or every
12 months, whichever occurs first).
An Emission Cmsd Sesvice.
0 Lubricate chassis components;. see footnote #
(or every 12 months, whichever occurs first).
0 Check readfront axle fluid level and add
fluid
as needed. Check constant velocity
joints and axle seals
for leaking. **
0 For Two-Wheel-Drive vehicles only: Clean
and repack
the front wheel bearings (or at
each brake relining, whichever occurs first).
[7 Replace fuel filter. An E~zzission Corztrol Service.
(Continued)
7-39
ProCarManuals.com
Page 366 of 404

Long Tripmighway Maintenance Schedule -- Gasoline Engines I
90,000 Miles (150 000 km) (Continued)
0 Vehicles With GVWR Above 8,500 lbs.
Only: Inspect shields and underhood
insulation for damage or looseness. Adjust
or replace as required. This is (I Noise Emission
Control Service. Applicable
only to vehicles sold if1
the United States.
0 If your engine has a thermostatically
controlled cooling fan, inspect all hoses
and ducts for proper hook-up (or every
12 months, whichever occurs first). Be sure
the valve
works properly. This is a Noise
Emission Control Service.
Appliccdde only to
vehicles
sold in the United States.
I DATE I ACTUAL MILEAGE ISERVICED BY I
97,500 Miles (162 500 km)
0 Change engine oil and filter (or every
12 months, whichever occurs first).
An Eulission Control Service.
0 Lubricate chassis components; see footnote #
(or every 12 months, whichever occurs first).
0 Check readfront axle fluid level and add fluid
as needed. Check constant velocity joints and
axle seals for leaking.
**
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 freedom of movement.
Refer
to the appropriate GM service manual for
ProDer caber service Procedures.
7-40
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Page 367 of 404

1 Long Tripmighway Maintenance Schedule -- Gasoline Engines I
100,000 Miles (1 66 000 km)
0 Drain, flush and refill cooling system (or
every
60 months since last service,
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 Con.tro1 Service. 3-
0 Inspect spark plug wires.
0 Replace spark plugs. An Emission Control Service.
Change automatic transmission fluid
and filter
if the vehicle’s GVWR is over
8600 lbs. or 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 higher.
An Emission Control Service.
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or
delivery service.
vyou do not ILY~ your- vehicle under my uf
these c*orlditions, the fluid and filter do not
require chwgirzg.
Manual transmission fluid doesn’t require change.
Inspect Positive Crankcase Ventilation
(Pcv) valve. An Enlission Control Service.
DATE ACTUAL MILEAGE SERVICED BY:
ProCarManuals.com