car surges at 35mph to 80 mph have changed transmission flush,fuel filter,air filter,tps and master air intake sensor and have put in high grade fuel and injector cleaner. Have also put it on 3 different computer diagnostic centers will not give or throw a code. And was told by certified GM mechanics that i would have to leave with the problem, said there is nothing else that they can do.
Sep 18, 2009 at 2:49 PM
