I was going to buy the glow plugs, but I'm not getting power to them, so that's why I'm now thinking electrical problem. When I got it home, I drove it off the trailer and parked it. I tried to start it after a day or two, and it just cranked. Seems hard to believe that the biodiesdel clogged it all at once,after it had been starting and running fine. When I went to look at it the first time, it was chilly, so he held the heat position for a little while, then it started right up. I'm going to work on the wiring this weekend and see if I can track it down. Thanks for the input!--------John