GMC 1999 Sonoma, Owner'S Manual

Page: 334 / 384

Short Trip/City Scheduled Maintenance
yellow blue
7-26
90,000 Miles (150 000 km) (Continued)
– 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, change the fluid
and filter every 50,000 miles (83 000 km).
j Replace fuel filter.
An Emission Control Service. (See footnote
[.)
j Replace air cleaner filter.
An Emission Control Service.
j Rotate tires. See “Tire Inspection and Rotation” in the Index for proper
rotation pattern and additional information. (See fo.)
93,000 Miles (155 000 km)
j Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control Service.
j Lubricate chassis components (or every 3 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 **.)
ACTUAL
SERVICED BY:
MILEAGE
DATE