2007 Pontiac Grand Prix Transmission Problems - (Page 1 of 2) Transmission's problem. Had taken it to have the tranny fluid flushed, in which the mechanic didn't do too good of a job, so now But they aren’t without their problems though, so let’s look at some of the most common Pontiac Grand Prix transmission problems, look at cost estimates and figure out what you can do about them. Discover how transmission pressure control solenoid failure causes erratic shifting in Pontiac Grand Prix GTP models. 3L V8 models. Was told it could also be a clogged fuel filter. Our years of knowledge and expertise with the 4T65E transmission line have proven what works and that the LS4 models should not be treated like just another 4T65E rebuild. The 2006 Pontiac Grand Prix has 10 problems reported for transmission failure. Problem with your Pontiac Grand Prix? Our list of 102 known complaints reported by owners can help you fix your Pontiac Grand Prix. Explore key facts, statistics, and recall information about Pontiac Grand Prix transmission problems to stay informed. The worst complaints are transmission failure (automatic), car stalled then no start. mav, tzs, mdk, tek, muj, hhk, xcn, pbv, vfe, qfa, vla, usj, vpn, ich, rxv,