1999 GMC ENVOY check engine

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Page 325 of 384

GMC ENVOY 1999  Owners Manual Short Trip/City Scheduled Maintenance
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7-13
± 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

Page 326 of 384

GMC ENVOY 1999  Owners Manual Short Trip/City Scheduled Maintenance
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7-14
36,000 Miles (60 000 km) (Continued)
Rotate tires. See ªTire Inspection and Rotationº in the Index for proper
rotation pattern and additio

Page 327 of 384

GMC ENVOY 1999  Owners Manual Short Trip/City Scheduled Maintenance
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7-15
45,000 Miles (75 000 km)
Change engine oil and filter (or every 3 months, whichever occurs first). 
An Emission Control Service. 
Lubricate

Page 328 of 384

GMC ENVOY 1999  Owners Manual Short Trip/City Scheduled Maintenance
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7-16
48,000 Miles (80 000 km)
Change engine oil and filter (or every 3 months, whichever occurs first). 
An Emission Control Service. 
Lubricate

Page 329 of 384

GMC ENVOY 1999  Owners Manual Short Trip/City Scheduled Maintenance
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7-17
Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle seals for leaking. (See footnote **.)
54,

Page 330 of 384

GMC ENVOY 1999  Owners Manual Short Trip/City Scheduled Maintenance
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7-18
60,000 Miles (100 000 km)
Change engine oil and filter (or every 3 months, whichever occurs first). 
An Emission Control Service. 
Lubricat

Page 331 of 384

GMC ENVOY 1999  Owners Manual Short Trip/City Scheduled Maintenance
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7-19
Inspect fuel tank, cap and lines for damage or leaks. Inspect fuel cap gasket
for any damage. Replace parts as needed. 
An Emission Control

Page 332 of 384

GMC ENVOY 1999  Owners Manual Short Trip/City Scheduled Maintenance
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7-20
66,000 Miles (110 000 km) (Continued)
Check rear/front axle fluid level and add fluid as needed. Check constant
velocity joints and axle sea