TL*THE CONTACT OWNS A 2000 FORD F350 SUPER DUTY. THE CONTACT STATED THAT THE VEHICLE CAUGHT FIRE WHILE IDLING. THE DEALER WAS UNABLE TO DETERMINE THE CAUSE OF THE FIRE. HE TOOK THE VEHICLE TO A MECHANIC AND WAS INFORMED THAT THE VEHICLE SPEED DEACTIVATION SWITCH CAUSED THE FIRE. AS OF SEPTEMBER 17, 2007, THE DEALER HAD NOT REPAIRED THE VEHICLE. THE FAILURE AND CURRENT MILEAGES WERE 180,000.