Just this morning as I was driving down the mountain, I was doing about 25 mph. I stepped on the gas just a little and it went to wide open throttle. When I stopped and went to back up, same thing. It went to wot. Before this happened, once in a while the wait to start light would come on and it would go to an idle. When the light went out I could accelerate again. If it is the gas pedal assembly, can you tell me where I might get one that doesn't cost more than my truck is worth?