Alright can someone tell me if there's has ever done this or not or if it has tell me how to fix it. Alright when im going down the road and i run it up around 5grand then let off it has this rattling noise comeing from the motor. If i rev it up sittin still it wont do it but when im going down the road it will. It has done it now for a couple of months and i cant find it. The dealership said taht it was this heat protector thing on the motor or something but i took it off and it still makes that sound. Help Please