I have a new 2002 Quad-Cab, 6-speed, CTD with 2500 miles. During the last 500 miles it has developed a very irritating vibration in the accelerator pedal which honestly makes the truck miserable to drive. I'm really missing the '95 Powerstroke I traded in on the Dodge. Can anybody help? I'd like to become better educated regarding this problem before I visit a dealer.