Yukon

2007 GMC YUKON
87,000 MILES • 5.5L • 5 CYL • 4WD • AUTOMATIC
Avatar
LSLOAN
  • MEMBER
  • 1 POST
My vehicle was dipping into gear with a clinch some times or shifting vey hard in first or second some times too. Had engine light on and the dealer ship scanned it and throttle body positions sensor came up so we changed out that. It is still shifting hard and I can let go of the gas and it just keeps going and going. I am not sure the next step or what is going on.
Feb 25, 2016 at 7:25 PM
Advertisement
Avatar
HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
I suggest having a transmission professional scan for codes, it may be something other than engine problem like a stuck valve in valve body.
Feb 26, 2016 at 7:11 AM