Page 363 of 404

Long Tripmighway Maintenance Schedule -- Gasoline Engines
0 Conduct Exhaust Gas Recirculation (EGR)
system inspection as described
in the
service manual.
An Emissiorz Control Service. 3‘
inspection. Check all fuel and vapor lines
and hoses for proper hook-up, routing and
condition. Check that
the purge valve works
properly, if equipped. Replace
as needed.
0 Conduct evaporative control system
At1 Emission Control Service. -f-
I DATE I ACTUAL MILEAGE ISERVICED BYI
67,500 Miles (112 500 km)
0 Change engine oil and filter (or every
12 months, whichever occurs first).
An E1uissim 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 I SERVICED BY:
7-37
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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
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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)
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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:
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Page 369 of 404

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 covers, and
have them repaired or replaced. (The air bag
system
does not need regular maintenance.)
Air Cleaner Filter Restriction Indicator Check
Your vehicle has an indicator on the engine that lets you
know when the air cleaner filter is dirty and needs to be
changed. Check indicator at least twice
a year or when
your
oil is changed. See “Air Cleaner” in the Index for
more information.
Manual Transmission Check
Check the transmission fluid level; add if needed. See
“Manual Transmission” in
the Index. A fluid loss may
indicate
a problem. Check the system and repair 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 fuel doors, body hood and body door
hinges, tailgate and tailgate handle pivot points, latches,
locks and folding seat hardware. Part
D tells you what to
use. More frequent lubrication may be required when
exposed to a corrosive environment.
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Page 372 of 404

Part C: Periodic Maintenance
Inspections
Listed below are inspections and services which should
be performed at least twice a year (for instance, each
spring and fall).
You should let your GM dealer’s
service department or other qualified service center do
these jobs. Make sure any necessary repairs are
completed at once.
Proper procedures
to perform these services may be
found
in a GM service manual. See “Service and Owner
Publications” in the Index.
Steering and Suspension Inspection
Inspect the front and rear suspension and steering
system for damaged, loose or missing parts, signs
of
wear or lack of lubrication. Inspect the power steering
lines and hoses for proper hook-up, binding, leaks,
cracks, chafing, etc.
Exhaust System Inspection
Inspect the complete exhaust system. Inspect the body
near the exhaust system. Look for broken, damaged,
missing or out-of-position parts as well
as open seams,
holes, loose connections or other conditions which could
cause
a heat build-up in the floor pan or could let
exhaust fumes into the vehicle. See “Engine Exhaust”
in the Index.
Radiator and Heater Hose Inspection
Inspect the hoses and have them replaced if they are
cracked, swollen or deteriorated. Inspect all pipes,
fittings and clamps; replace
as needed.
Throttle Linkage Inspection
Inspect the throttle linkage for interference or binding,
and for damage or missing parts. Replace parts as
needed. Replace any cables that have high effort or
excessive wear.
Do not lubricate accelerator and cruise
control cables.
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Page 377 of 404
Part E: Maintenance Record
After the scheduled services are performed, record the
date, odometer reading and who performed the service
in the boxes provided after the maintenance interval. Any
additional information from “Owner Checks and
Services” or “Periodic Maintenance” can
be added on
the following record pages. Also,
you should retain all
maintenance receipts. Your owner information portfolio
is a convenient place to store them.
Maintenance Record
ODOMETER
DATE READING SERVICED
BY MAINTENANCE PERFORMED
~
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