I have a 03 550 power stroke and the lockup starts lockup as soon as you tuch the gas peddel in rev in forward its fine any ideas? the trans has been gone thru and new converter the selionid packs are new the trans did have the same ishue before the overhaul.the trans does have a pto than is used for the crane on the truck and has a speed control I dont know if it is interfeering.