I see this thread kind of died out, but I have the same issue on a 2 month old 03. There is a definite vibration that can be felt at idle. Can feel it in the chassis through the seat and steering wheel. If I engage the A/C compressor it is even more noticeable. I've searched "vibration and idle" and there definitely seems to be an issue here.superMDX said:When the car is stopped but the engine is still running, does anyone sense the slight vibration on the pedal and steering wheel coming from the engine? Also, when I turn on the A/C, the vibrations become more noticeable. Is this normal?