My 02 Trailblazer suddenly changed in how smooth it drives overnight meaning that now it sounds a bit like a lawn mower. When you are inside the car, lite vibrations can be felt through the floor on your feet. When you are outside of the car, it seems that the noise is coming from the exhaust pipe. I took it to a mechanic and they said there was nothing wrong with the muffler. They apparently did a back flow test. I just don't think they tried hard enough. Any ideas as to what could be wrong?
have the same problem?
Tuesday, February 5th, 2008 AT 10:46 AM