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GMC
Envoy
Drivetrain
Transmission
Symptoms
Slip
transmission slipping
2008 GMC ENVOY
214 MILES • 4.2L • 6 CYL • 4WD • AUTOMATIC
BIGGS
MEMBER
16 POSTS
FOLLOW
slipping in third gear after warming up.
May 29, 2017 at 7:07 PM
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STRAILER
CERTIFIED EXPERT
53,854 POSTS
Hello,
I would start by serving the transmission and replacing the filter. Here is a guide to show you what you are in for when doing the job
https://www.2carpros.com/articles/how-to-service-an-automatic-transmission
Please let us know what happens.
Cheers, Ken
Jun 1, 2017 at 11:34 AM