Dealer replaced HPFP and problem still persits. - Ford Powerstroke Diesel Forum
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Old 04-12-2011, 01:36 PM
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Unhappy Dealer replaced HPFP and problem still persits.

I posted this in the 6.4 motor problems forum with no response. Hoping I can get some help here.

took my 6.4 into the dealer 3 weeks a go for loss of power and check engine code p0088 (fuel rail/system pressure) too high. tech said it needed a new hpfp and so they went ahead and replaced it. truck seemed to be ok when i got it back except whenever i got back into the truck after driving it for a while there would be a loss of power right when i started it up and got going. id get on the gas and it would just have no power but would then clear up pretty quick and start driving normal. this always happens everytime i get back into the truck and get going. now im getting a p0087 (fuel rail/system pressure) too low and p2291 (injector control pressure) too low-engine cranking. im not always getting a check engine light but i can feel the truck running funny and when i run diagnostics on the dashdaq, those are the codes its producing.

can anyone tell me whats goin on?
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Old 04-13-2011, 11:35 AM
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Im assuming you got it fixed under warranty? take it back and tell them to get it done right!
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Old 04-13-2011, 05:43 PM
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Try the easy route first. Fuel filters. May have pick up some dirty fuel.
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Old 04-13-2011, 06:56 PM
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I had the HPFP replace by the dealer ....truck had 117k miles......after teh repair I never had issues...I thinking it could be the HPFP again....I was told it's a poor design of a HPFP. I would take the truck back and have it fixed under the the repair warranty...good luck and keep us posted....BTW the PO0087 and PO0088 codes have to do with the HPFP....
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Old 04-14-2011, 11:08 AM
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bringing it back to the dealer next tuesday. funny thing is ive noticed these syptoms happen on every tune i have except for the 310 tune. i have the original production 310 tune and havent upgraded my tuner since i upgraded to the stratagey flash tuner. i reallly hope they can get this issue resolved. i cant tow with the 310 tune and i cant have this sh!t happening to me when im in the middle of nowhere with a load in the back...
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Old 12-14-2012, 07:03 PM
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Solved?

Hey bud sounds exactly what's happening to me.
Did you get it fixed? What they did wrong?
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Old 12-15-2012, 04:52 AM
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Subscribed and good luck!
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Old 12-15-2012, 05:16 AM
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air in the in the fuel system?
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