I took the Intrepid in this morning because of buzzing noise from the car and the tranny still not feeling quite right. The trans tech looked at the car and drove it and then the service advisor calls me over. There is nothing wrong with the tranny. The muffler is coming apart on the inside and its causing the car to bog because its not flowing as freely and the buzzing is all the stuff flying around. The good news is that I now get a new muffler under warranty, the bad news is that I have to wait till Friday since it has be special ordered. I did try getting a dual outlet 300M special muffler but it has to be exact according to the dealer.