GMC 1999 Envoy Owner's Manual page 346

Long Trip/Highway Scheduled Maintenance
60,000 Miles (100 000 km) (Continued)
j
Replace fuel filter.
An Emission Control Service. (See footnote
j
Replace air cleaner filter.
An Emission Control Service.
j
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. (See footnote
67,500 Miles (112 500 km)
j
Change engine oil and filter (or every 12 months, whichever occurs first).
An Emission Control Service.
j
Lubricate chassis components (or every 12 months, whichever occurs first).
(See footnote #.)
j
Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)
j
Rotate tires. See "Tire Inspection and Rotation" in the Index for proper
rotation pattern and additional information. (See footnote +.)
75,000 Miles (125 000 km)
j
Change engine oil and filter (or every 12 months, whichever occurs first).
An Emission Control Service.
7-34
[
.)
[
.)
DATE
ACTUAL
SERVICED BY:
MILEAGE
DATE
ACTUAL
SERVICED BY:
MILEAGE
yellowblue