Driverside noise, deep in dash
I have a 2009 Pont. G-6 with 21,000 miles. I purchased the vehicle new and it's still under warranty. A rattle or thumbing noise has developed on the drivers side deep in the dash when the vehicle is in motion. The noise is most prevalent when driving on a bumpy or not so smooth road. The noise is easily reproducted. I took the vehicle to a GM dealereship to fix the problem. I was first told they had located the problem. It was in the steering column and had to order a new column. They replaced the steer column and I was advised it did not cure the noise. They them checked the winshield wiper arms and transmission, the ABS master cyclinder and its mounts, they removed the left front strut and placed it, check the craddle mountings, they removed and checked under dash, and also the hood mountings. The noise is still present. The dealer had two used 2009 G-6 at his disposal and upon test driving these vehicles, both vehicle had this same noise. The dealer now thinks the noise might be coming from the frame itself and needs to find a body shop to inspect the spot weld on the car. They have issued a Tac-case number and turned the matter over to a zone representative. Has anyone else ran into this problems? Is there a cure?
Thanking you in advance.