Page 317 of 387

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
7-14
ProCarManuals.com
Page 334 of 387
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:
7-31
ProCarManuals.com
Page 349 of 387
r Long Trip/Highway Maintenance Schedule
100,000 Miles (1 66 000 km)
0 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 O C) or higher.
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or
delivery service.
If you do not use your vehicle under any of these
conditions,
the fluid andfilter do not require changing.
0 Replace Positive Crankcase Ventilation
(PCV) valve. Replace any worn, plugged or
collapsed hoses.
An Emission Control Service.
0 Inspect Exhaust Gas Recirculation (EGR)
17 Inspect fuel injector.
system. An Emission Control Service.
An Emission Control Service.
0 Replace evaporative emissions canister.
An Emissitin Control Service.
DATE SERVICED BY: ACTUAL MILEAGE
7-46
ProCarManuals.com