What is your question?
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What is your question?
Not shifting gears properly rpmS increase does not do all the time
How long has your 2010 GMC Terrain had this problem?
Just owned the car 1 week
1 Reply
No help - intermittent failures are nearly impossible to diagnose even when the ‘vehicle is present’ for *hands-on* evaluation - - therefore any online advice would certainly be moot. Good luck!