I cleaned the sludge and grease from the engine bay and off the transmission with a rag as to not spray water into the electrical system. I found that this actually brought out all the problems with the wire harness because it now had clean metal on which to ground out (the trans). THE IGNITION WENT DEAD TWICE. it had blown the main 30A fuse. since then I have rewired most of the H50xm Wire harness.

The fuse box is on the left side of the truck under the dash. The main power fuse is 30 amps. Do you have work lights on the truck and is so were they on when you were using the truck??.