GM 2004 Automobile User Manual


 
60,000 Miles (100 000 km)
Change engine oil and filter (or every 3 months,
whichever occurs first).
An Emission Control Service.
Replace passenger compartment air filter.
Inspect engine accessory drive belts (or every
48 months, whichever occurs first).
An Emission
Control Service.
Replace engine air cleaner filter (or every 24 months,
whichever occurs first).
An Emission Control Service.
Rotate tires. See
Tire Inspection and Rotation
on page 5-68
for proper rotation pattern and
additional information.
(See footnote +.)
Inspect for tappet noise and engine vibration. Adjust
valve clearance to factory specifications if necessary
(or every 48 months, whichever occurs first).
An Emission Control Service.
Inspect fuel tank, cap, cap gasket and lines for
damage or leaks (or every 24 months, whichever
occurs first). Replace parts as needed.
An Emission
Control Service. (See footnote †.)
Drain, flush and refill cooling system (or every
24 months, whichever occurs first). See
Engine
Coolant on page 5-27
for what to use. Inspect hoses.
Clean radiator, condenser, pressure cap and neck.
Pressure test cooling system and pressure cap.
An Emission Control Service. (See footnote †.)
Change manual transaxle fluid every 30,000 miles
(50 000 km) only if your vehicle is used to tow a
trailer.
Change automatic transaxle fluid every 60,000 miles
(100 000 km) 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.
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, check the fluid. See Part D: Recommended
Fluids and Lubricants on page 6-26
for the proper
fluid to use.
Change transfer case fluid when doing frequent
trailer towing.
Change rear differential fluid when doing frequent
trailer towing.
63,000 Miles (105 000 km)
Change engine oil and filter (or every 3 months,
whichever occurs first).
An Emission Control Service.
6-11