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Power Strokes
7.3 Tech
Cold start problems (funky GPR volts)
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[QUOTE="Crbav8r, post: 215218, member: 4654"] Truck won't start below 40 deg. Replaced glow plugs, and put o-rings on injectors(since they tested good) batteries test over 1000 CCA alternator good new starter. If I plug the truck up over night, it starts like new. Once it gets warmed up it runs like a champ. I was testing the GPR this morning, and when the truck was cold I was getting 12v when I put the lead on the post. As it stayed there the voltage was jumping to 14, 18, 24, 51, 14... all over the place. This was on the glow plug side of the relay. The relay did shut off, but the truck still doesn't run. If it does, it lopes on like 4-6 cylinders for 30 seconds before smoothing out. I had to shoot it with a little fire to get her going this morning. After it ran for 3-5 minutes, the GPR tested with 12.7 volts steady on the next start. ????? Truck is 2001 F350 7.3 stock 248,000 miles I did check the oil level in the HPOP, but it was after it had run a couple of minutes. I will check that tomorrow morning before cranking. [/QUOTE]
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Cold start problems (funky GPR volts)
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