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6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

High pressure fuel pump

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Old Nov 17, 2015 | 07:20 AM
  #46  
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Originally Posted by CampSpringsJohn
They don't. But, what does happen is when the HPFP goes bad, or an injector does, the metal shavings end up in the return line going back to the tank. The shavings in the tank reveal that something is majorily wrong with either the HPFP or an injector.
Ok, so the shavings is the egg not the chicken
 
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Old Nov 17, 2015 | 07:22 AM
  #47  
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Originally Posted by speakerfritz
Ok, so the shavings is the egg not the chicken
Exactly. The shavings come from the pump, and their presence is one of the ways they diagnose its failure.
 
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Old Nov 17, 2015 | 08:10 PM
  #48  
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I don't recall them saying anything about removing the tank , I better ask tomorrow about that?
 
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Old Nov 18, 2015 | 11:10 AM
  #49  
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It needs to be dropped and cleaned if metal was found.
 
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Old Nov 20, 2015 | 08:24 AM
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pulled my primary and secondary filter today. there was a very small amount of metal shavings in the primary filter. the filter was not original so no way of telling if this truck had a fuel system repair in the prior 84K miles.

the truck has just become a local only truck until I can pull the tank.
 
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Old Nov 20, 2015 | 08:52 PM
  #51  
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How does the tank get contaminated? I phoned the guys that are doing mine and they said there weren't pulling tank?
Can anyone help me out here , somethings not adding up?


T hey quoted me 20 hours for labour and around $6000 for parts?
Sound right?
 
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Old Nov 20, 2015 | 08:56 PM
  #52  
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Originally Posted by Vinford
How does the tank get contaminated? I phoned the guys that are doing mine and they said there weren't pulling tank?
Can anyone help me out here , somethings not adding up?


T hey quoted me 20 hours for labour and around $6000 for parts?
Sound right?
what I am being told is that as either the high pressure fuel pump or injectors start to fail...metal shavings are generated which wind up in the tank supposedly because the fuel rails are circulatory and fuel winds up back into the tank.

your primary filter will trap all the metal shavings but the problem is either the high pressure pump or injectors failing and generating the shavings.
 
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Old Nov 21, 2015 | 06:14 AM
  #53  
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Yes, extra fuel in the lines gets returned as unused fuel.
 
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Old Nov 21, 2015 | 05:38 PM
  #54  
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Originally Posted by senix
Yes, extra fuel in the lines gets returned as unused fuel.

I wonder if I want them doing this job if they don't know that?
 
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Old Nov 21, 2015 | 06:04 PM
  #55  
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Just have them not start the truck till you get there and drop the tank...or go drop it now.
 
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Old Nov 21, 2015 | 10:47 PM
  #56  
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OK so I just got off the phone with a friends whos a fairly good mechanic , hes owned lots of equipment and has some good knowledge about diesels.


Hes says he cant understand how the high pressure fuel pump could be gone in my truck when it starts so easily?
It starts right up only turns over about once. He says it should be hard to start because the pump isn't pressuring things up right?


Next thing he made me question was the shavings in the fuel filter means they must have already went all through my system?
The shop says they aren't cleaning the tank , well the shavings had to go through the tank before they got to the filter?


I'm really starting to wonder if I should take it somewhere for a second opinion before I plunk down 10G?
 
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Old Nov 22, 2015 | 06:16 AM
  #57  
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there are a lot of good informative youtube videos about this from a site called powerstrokehelp
 
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Old Nov 22, 2015 | 07:34 AM
  #58  
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Where are you having the work done? A Ford dealer or independent shop?
 
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Old Nov 22, 2015 | 09:26 AM
  #59  
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Originally Posted by Tom
Where are you having the work done? A Ford dealer or independent shop?



Independent shop
 
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Old Nov 22, 2015 | 10:23 AM
  #60  
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Originally Posted by Vinford
Independent shop
I would be very cautious letting an independent shop work on your truck. There are lots of very specific procedures that have to be followed, and many of them are unique to the application. Screwing this up means it all may have to be redone.

I wouldn't let anyone other than a dealer with a qualified tech to diagnose and fix this.
 
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