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  #1  
Old 03-16-2009, 06:19 PM
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HPOP Question

Have a 2000 7.3. Truck started to have oil leak. Oil in valley, figured it was orings in the HPOP. Then the truck started to have slightly long crank but would start and run. Now the truck will only start after extended crank will run bad and you can not touch the accel pedel or it will die. Truck will eventually die on its own. The resivor is always full so I know its not a LPOP problem. The Injector O-rings are all new (1 month old) I was also getting a #8 injector code plus now I am getting a P1212 - ICP pressure not detected while cranking plus a P1280.

I was thinking the HPOP is bad what do you think?
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Old 03-16-2009, 07:20 PM
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I would suspect that the IPR may be sticking or a bad ICP sensor. If you have oil in the valley, you need to address that problem first and find the exact source.

It is rare that the HPOP would slowly get to the point of not having enough pressure to even start the engine.
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Old 03-17-2009, 05:33 PM
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I was checking it out again tonight and was looking at the ICP pressure when it was running poorly.. I was only getting 200psi. Does that sound right? I have another IPR valve that I might try off a '97. The oil leaks are definitly coming from the o-rings in the HPOP. Thanks For you input guzzle
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Old 03-17-2009, 07:03 PM
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Fix the leak first. If it's bad enough, that's the whole problem.
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Old 03-28-2009, 06:09 AM
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can anyone recomend a good scan tool to buy
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