Hi I'm Sam. I bought this 99 F250 last week and the guy i bought it from said the cam position sensor was a problem on the 7.3 engines. So i tried to start the truck tonight after I spent a long time fixing the block heater to bring it to my high school's Auto-club and the wait to start light didn't come on. I thought that was pretty weird but i figured eh the engine is probably just warm already because the block heater was plugged in. So i started it and it fired right up.Then i put it in gear to drive off an when i pushed down on the pedal nothing happened but it would move around at idle. So i looked around and all of my gauges where dead. So i figured the cps wad bad and replaced it with the spare the guy gave me and I still had the same problem and I don have a SES light so I'm really confused. The SES light did come on two days ago when I was driving to menards after cranking the engine for 30 sec to get it to start in the cold when the block heater was out. The light was gone when i came out from menards after starting it up. Does any of this sound familiar? I'm new to diesels but I do have a strong mechanical backround.