Ok, I've been hearing the strangest noise under my car for awhile now and I want to know if anyone else has heard this. It sounds for all the world like a drum stick is hanging by a rope, swinging back and forth, and hitting against something solid. It makes 3-4 loud taps and the vibration can be felt through the gas pedal/floorboard. It ONLY happens when pulling out while turning left or right and going over a rough entrance like a rain gutter that bounces the car pretty decent. So whatever it is doesn't start swinging under normal driving. For the life of me I can't imagine what could be that heavy to make noise like that and not be causing any other problems.