i have a wierd noise coming (i think) the rear of the motor. its kinda like a thumping with a sqeek every once and a while. its a 2003 5 speed with 16000 mile. got any suggestions???? :-? i might have to take it to ford and have warrenty work done. that means ill have to take off headrs, exhaust etc. im kinda bumed i hope its like the h pipe shaking.