High pressure oil / fuel pump problems

[weldude]

Have been having crazy things happen recently. My truck will idle rough low rpm them jump to 12oo rpm by it self then some days start it up it idles at 400 rpm and no foot pedal reaction at all !! Put it to the floor nothing engine stay the same. Turn it off and on a few times run fine. Next thing it running rough again kill it and it would not start at all now. Been going on over 8 months put a new high pressure fuel reg on it ran fine two weeks now the same thing it died and towed it to shop now they say high pressure oil pump under intake !! 759 bucks for the pump. Anyone hear of this or have it happen ??? Course it has 71,000 miles and two months out of warranty and ford will not do anything.

[weldude]

oh 2005 f350 super duty dual wheel 4 wd 6.0

[ShawnCT450R]

If your gonna replace the HPOP, dieselsite has a new sweet one for the 6.0. It's what I will put in when it's time. Don't know the cost but I bet it's comparable to a factory unit, and it's supposed to be much more robust.

[weldude]

It is a shame to spend the kind of money for one of these ford trucks and have this go out in only 71,000 miles. Mechanic told me 1600 bucks to fix it.

[Banshee365]

Does the shop know the 6.0 well? Did the properly rule out the ICP sensory and IPR valve?

[diablos30]

^^^^
highly unlikely that its the pump.

[weldude]

said it was to have 500 psi mine had 80 psi ?

[lacooks]

How did they check that... I would start with the dummy plugs and standpipes and stc fitting.. easy enough job to do yourself... and the oil pump is easy as well...

[diablos30]

could be bad icp, ipr, or hpo leak. only way to know for sure is to have it on a scanner (such as auto enginuity) so you can see those parameters real time.

[Chango]

Here is a troubleshooting guide that can hopefully help you out

-----> Troubleshooting a No-Start condition