I need this investigated please !!!!!!!I have a 2007 Pontiac G5 and have been having issues with the engine running erratically. The RPM will jump up while I'm driving at a constant speed. This has been going on for a few months. Two weeks ago I was stopped at a traffic light and it speed up and red lined and lurched into the intersection. Thank god everyone avoided each other. It was during rush hour !!! it happened again this morning and I was almost T-boned by a semi !!! I have had it checked and no one has found anything!! there was a mechanic that had it cut up some when he drove it but said it was not doing enough to diagnose the problem. There are no warning lights on and it is random doing it. We have tried putting it in the same situations to get it to do it so the mechanics can see it for themselves, but have had no luck !!!!! I am very concerned about this and want something done !!!!! if more of these cars are doing this someone is going to die !!!! it is extremely dangerous and needs investigated please !!!!!!!!!!!!!!!

- Athens, AL, USA