After 6 hrs of being plugged in, and while being " jumped " by a healthy 7.3, still nothing. I could let the glow plugs cycle for 10 or 20 or many cycles and it makes no differance. I think I need a relay and a battery for starts. There is about a foot of snow around the car that I would like to plow. In the morning, I think I will just pull it to a new spot until I can swap the relay. Would a good relay/plugs allow a cold start even if the block heater didn't work? To what temp? I am sure there are other varibales involved but I am done for the night. Thank you again for the help.

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96 F350 CC, LB, 4x4. 290,000 with around 90,000 on wvo.

82 Mercedes 300d. New to me. 211,000 soon to be on wvo.