My 07 with 1500 miles on it has been at the dealer for two weeks and they are having trouble fixing the problem's. The biggest problem is when i press the brake pedal or turn the steering while in park or at low speeds I get a vibration or growl though the brake pedal and the sterring wheel. The next problem is a the engine seems to be tapping/clattering more than it was when new. Also at 60mph the truck vibrates all over. Any help or info would be appriciated.