Engine Performance problem
2005 GMC Envoy 6 cyl Four Wheel Drive Automatic 78000 miles
My vehicle surges while normal driving operations. So if I am going around 60mph I get to feel this annoying up and down acceleration, seems to be worse when my tank is about a 1/4 full. I have had it in the shop twice and had the computer flased as well as the throttle body changed out. Not sure where to go from here.
have the same problem?
Friday, March 26th, 2010 AT 1:31 PM