driven under one or more of these
c.onditions:
In heavy city traffic where the
outside temperature: regularly
reaches
90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
(With some models, you shouldn’t
ever tow
a trailer. See Towing a
Trailer
in the Index.)
Uses such as.found in taxi, police
car or delivery service.
If-you do not use your vehicle under
any of these conditions, change both
the fluid and filter every
100,000
miles (166 000 km) .
Replace spark plugs with the proper
type. See
Replacement-Parts in the
Index.
9. Spark Plug Wire Inspection*T -
Inspect for burns, .cracks or other
damage. Check the boot fit at the
coils and at the spark plugs. Replace
wires as needed.
8. Spark PIug~Replacement* -
-10. Exhaust Gas Recirculation (EGR)
System Inspection
(3.4L Code X
engine only)*? - Conduct the
EGR system service-as described in
the service manual.
To purchase a
service manual, see Service
Publications
in the Index.
1 1. Air Cleaner Filter Replacementgc -
Replace every 30,000 miles
(50 000 lun) or more often under
dusty conditions. Ask your dealer
for the proper replacement intervals
for your driving conditions.
12. Fuel Tank, Cap and Lines
Inspectiong‘t
- Inspect fuel tank,
cap and lines (including fuel rails
and injection assembly). for damage
or leaks. Inspect fuel cap gasket for
an even filler neck imprint or any
damage. Replace parts as needed.
Periodic replacement of the fuel
filter is not required.
NOTE: To determine your engine’s
displacement and code, see
Engine
Identification
in the Index.
* = An Emission Control Service.
f = The U.S. Environmental Protection
Agency
or 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 in “Section
E: Maintenance
Record.”
243
Section 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
Bepairs are completed at once.
INSPECTION
OR SERVICE
Restraint Systems
Steering, Suspension
and FrontWheel-
Drive Axle Boot and
Seal Inspection
Exhaust System
Inspection
Throttle Linkage
Inspection
Brake System Inspection
WHAT SHOULD BE DONE
Now and then, make sure all your belts, buckles, latch plates, retractors, anchorages and
reminder systems are working properly. Look for any loose parts or damage.
If you see anything
that might keep a restraint system from doing its job, have it repaired.
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
hookup, binding, leaks, cracks, chafing, etc. Clean and then inspect the drive axle boot seals for
damage, tears or leakage. Replace seals if necessary.
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.
.. -
Inspect the throttle linkage for interference or binding, and for damaged or missing parts.
-Replace parts as needed.
Inspect the complete system. Inspect brake lines and hoses for proper hookup, binding, leaks, cracks,
chafing, etc. Inspect disc brake pads for wear and rotors for surface condition. Inspect other bralte
parts, including calipers, parking brake, etc. Check parking bralte adj\
ustment. You may need to have
your brakes inspected more often
if your driving habits or conditions result in frequent braking.
NOTE:-A low brake fluid level can indicate worn disc brake pads which may need to be serviced.
Also,
if the bralte system warning light stays on or comes on, something may be wrong with the
brake system. See
Brake System Warning Light in the Index. If your vehicle is equipped with anti-
lock brakes and the anti-lock bralte system warning
light stays on, comes on or flashes, something
may be wrong with the anti-lock brake system. See
Anti-Lock Brake System Warning Light in the Index.
247
