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hauto, Technician
Category: Car
Satisfied Customers: 2728
Experience:  15 year hands on technician experince, associate degree in automotive technologhy
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2006 gmc envoy denali: litre..oil leak.does..smoke..runs great

Resolved Question:

2006 gmc envoy denali 5.3 litre unexplained smoking,loss of oil,no sign of oil leak.doesn't smoke,but short time and stop.truck runs great.
Submitted: 5 years ago.
Category: Car
Expert:  hauto replied 5 years ago.

Thanks for using JA

This engine has a normal rate of oil consumption of 1 qt in 3200 miles. so if the oil loss is within that rate this is considered normal s per GM.

This engine is also known for leaks at the rear oil cover, and the oil pressure sensor.if the oil loss is more than the normal rate I would have it checked out for those tow areas you may not be able to see the leak a GM tech will know were to look.

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