Transmission Noise problems of the 2007 Chevrolet Impala

The contact owns a 2007 Chevrolet Impala. The contact stated that while driving 5 mph, the vehicle exhibited a loud, abnormal noise as it abnormally accelerated. The vehicle was towed to an independent mechanic for diagnosis and the contact was informed that the transmission would need to be replaced. The vehicle was repaired. The manufacturer was notified but offered no assistance. The failure and current mileage was 78,000.

Have 2007 Impala lt3. (purchased from sunset Chevrolet, sumner, wa) 1/13/2010. Having serious transmission issues. Took vehicle to firestone (6/10/10) for routine oil change and inspection. Found leak in transmission. Also needed fuel system service. Repairs not done at this time due to financial shortage. Took to firestone again for routine oil change 8/26/10. During routine inspection oil leak detected. Transmission leaking. And power steering making abnormal noise. Could not afford repairs. Then took vehicle to dealership. Was told that repairs not covered by warranty. Could not afford out of pocket. Transmission got worse as did oil leak and powersteering. 1/31/11 firestone serviced the transmission and replaced the leaking gasket. This did nothing to help transmission issues. Contacted gm. Was eventually told that even though burien Chevrolet told us the parts were not covered by warranty, that in fact the parts were covered by warranty at the time we took it to the dealer. But because we took the vehicle to an independent auto shop, their was nothing gm could do to assist us with our issue. Now I am unsure how to proceed. Any advise? thank you for your time. Sincerely, keith buss.

I own a 2007 Impala lt 3. 9 l. Purchased from sunset Chevrolet in sumner, wa 1/03/10. Not even 3 months after buying the car, the engine oil started leaking, the transmission started leaking, the power steering started making an abnormal noise, and the car needed a brake job. (front and back). Took car to dealer (burien Chevrolet in burien, wa). Was told that the needed repairs were not covered by warranty. We declined repairs as we could not afford out of pocket cost. Contacted general motors. Was told that at the time the vehicle was taken to the dealer, that relevant components were indeed covered by the warranty. Gm was unsure of why dealer had told us they were not covered by warranty. But that the warranty was presently expired, and even though it wasn't when we took car to dealer, there is nothing they can do now that the warranty is expired. Also, the tech at burien Chevrolet said that he could see no signs of the symptoms that we described were wrong with the transmission, even though there was a service bulletin issued by gm on 10/15/09 (06-07-30-023c) which describes the symptoms exactly as we told the dealer. It also contains information neede to repair the problem. Now the transmission is on the verge of breaking down and the engine is leaking oil more than ever.

Transmission "slips" then engages hard. Has progressively gotten worse. Had transmission service just about a year ago, fluid has been clean and full. I was making a right hand turn and started to go but the car would barely pick up speed, the engine revved then after about 3 seconds it jerked hard and resumed acceleration. My local dealer and gm themselves flat-out lies about the issues with this car (has had all the common things, tire wear, bad rotors, motor mounts, window screeching, steering noises, remote entry, you know, typical Impala) so unlikely it will go to dealer for diagnosis. They will likely say it's due to position of the moon and direction of the wind. Just hope this does not cause accident before I can ditch this car or NHTSA gets on gm's case for these defect ridden cars!.