2001 Ford F-350 Hard start

Tiny
CLCHARLES
  • MEMBER
  • 2001 FORD F-350
  • V8
  • 4WD
  • AUTOMATIC
  • 296,000 MILES
I have a F-350 that is hard to start in cooler wheater. I have had the glow plugs changed and the glow plug relay cylenoid replaced, and started. We have had all the glow plug parts checked out and no one can find out what is wrong with the truck. If you plug the truck up at night it starts fine and will start up everytime after that throughout the day unless it has to sit for 5-6 hours without being started then it will not start again unless it is plugged back up for about 3-4 hours. Could you give me any advise on what to do to get this truck started without having to plug it in every night?
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Sunday, October 24th, 2010 AT 8:19 PM

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Tiny
CLCHARLES
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Sunday, October 24th, 2010 AT 9:04 PM
Tiny
TECH1FORD
  • MEMBER
With the concern that you are having my first step would be make sure that the glow plugs are drwing the correct amps 200 amps off the relay, if they are good then I would move to a crank case pressure test to make sure you have good compression in all cylinders, It is a good way to make sure that if you spend the money on new parts your engine is worth it. 7.3 air boxes in those years let lots of dust through and it is possible that you have dusted the engine, rings are not sealing anymore. Try that first.
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Monday, October 25th, 2010 AT 7:14 PM

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