Love my King Ranch but I have it to pull a living quarters 3 horse trailer. When pulling the
trailer the truck bucks and jerks at about 45 mph or when going uphill. The truck has 26k miles on it. It also has an adjustable accelerator pedal. I have carried it to two dealerships and 1 diesel diagnostician. All witnessed the problem. When the pedal is in the
raised position, the truck will jerk violently, down position..not quite as bad, cruise control
on-it does not do it. All service departments have said Ford recognizes the problem but there is no fix. Have any of you encountered this problem? With no fix..it makes the truck useless. I am sick!!!

 

I smell BULL-CHIT I would call FORD HEADQUARTERS & tell them if they can't fix it, you want them to buy the truck back See how quick they'll send a TECH to the nearest FORD dealer to you

 

I would agree with gunman,CALL FORD! Sounds like issues with the throtle peddel and the computer interfacing with eachother. So it might be a compatibility or bad signal (Comunications) readings From the peddle to the computer. Or the Transmisiion might be getting confusing signals from the Computer and peddle. I going with software and peddle calibration on this one.