1999 GMC SIERRA Owner's Manual

Page 377 of 440

GMC SIERRA 1999  Owners Manual Short Trip/City Scheduled Maintenance -- Gasoline Engines
yellowblue     
7-15
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additional information.

Page 378 of 440

GMC SIERRA 1999  Owners Manual Short Trip/City Scheduled Maintenance -- Gasoline Engines
yellowblue     
7-16
39,000 Miles (65 000 km)
Change engine oil and filter (or every 3 months, whichever occurs first). 
An Emission Control

Page 379 of 440

GMC SIERRA 1999  Owners Manual Short Trip/City Scheduled Maintenance -- Gasoline Engines
yellowblue     
7-17
Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (S

Page 380 of 440

GMC SIERRA 1999  Owners Manual Short Trip/City Scheduled Maintenance -- Gasoline Engines
yellowblue     
7-18
50,000 Miles (83 000 km)
Change automatic transmission fluid and filter if the vehicles GVWR is over
8600 lbs. or if th

Page 381 of 440

GMC SIERRA 1999  Owners Manual Short Trip/City Scheduled Maintenance -- Gasoline Engines
yellowblue     
7-19
54,000 Miles (90 000 km)
Change engine oil and filter (or every 3 months, whichever occurs first).
An Emission Control S

Page 382 of 440

GMC SIERRA 1999  Owners Manual Short Trip/City Scheduled Maintenance -- Gasoline Engines
yellowblue     
7-20
60,000 Miles (100 000 km)
Change engine oil and filter (or every 3 months, whichever occurs first). 
An Emission Control

Page 383 of 440

GMC SIERRA 1999  Owners Manual Short Trip/City Scheduled Maintenance -- Gasoline Engines
yellowblue     
7-21
Conduct evaporative control system inspection. Check all fuel and vapor lines
and hoses for proper hook
-up, routing and

Page 384 of 440

GMC SIERRA 1999  Owners Manual Short Trip/City Scheduled Maintenance -- Gasoline Engines
yellowblue     
7-22
66,000 Miles (110 000 km)
Change engine oil and filter (or every 3 months, whichever occurs first). 
An Emission Control