Alright a friend of mine has an 02 f150 screw fx4 with the 5.4 in it. he says when he is driving (at a cruising speed) the truck will hesitate and flash its "theft" light. he says the rpm's drop intermentaly (sp*) when the "theft" light flashes. i only talked to him for a brief moment about it and will get more info later. you guys got any idea what it could be? clogged fuel filter maybe?