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Farmall & IHC Tractors Discussion Forum
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GM Diesel

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bm3501466

04-02-2006 17:41:27




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I have been having starting problems with my truck that has the 6.5 diesel. When I start the truck it often dies. When it does start successfully it will run with no problems. The truck will start perfectly between 3 or more hours after it has been running at operating temperature and then being shut off. Any time though between an hour to three hours after the truck has been off after running, it will either not start or it will die within a couple of seconds after being started. I have put a new lift pump in it, however it is still being contrary. What could be the problem with my truck?
I know this isn't a GM forum, but I know you guys know your stuff fairly well.

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P Backus

04-03-2006 12:57:28




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 Re: GM Diesel in reply to bm3501466, 04-02-2006 17:41:27  
How new is it? Does it have an injection pump or common rail fuel technology? What you are describing is a symptom of an injection pump that needs a new head (a rebuilding). Will start fine cold, but not when warm.
Paul



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6.5 GUY

04-02-2006 18:31:43




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 Re: GM Diesel in reply to bm3501466, 04-02-2006 17:41:27  
sounds to me like the PDM (pump driver module)is bad. That is the electric control module on the side of the pump. There is a cooler kit that you should install to move the PDM from the pump to the intake manifold. The whole package is around $450 but will fix the problem. Good luck



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