I got an '02 GT and been having this "jingling" type of a sound come underneath my car. I hear it the most when the car is idle...warming it up or at a stop light. Car is still under warranty and have taken it to Ford twice but they can't find anything wrong with it. Funny thing is when I step on the clutch pedal the noise goes away. When I release it, it comes back. It doesn't happen all the time, but just about. What do you think it is? Is my clutch bad? It's really frustrating. Please help.