Oil Leak - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 09-07-2006, 01:51 AM Thread Starter
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Oil Leak

Hello everyone,
I found oil on the garage floor under my psd. Seems to be very small and comming from rear of engine. Any ideas? Also I have installed a cat back 4" exhaust with no cat or muffler and. Do you think this will cause a problem when I take it in for warranty work on the oil leak? I am in small town in south Alabama with a small town dealer. I am thinking that it may be a rear seal. This is on my 2005 f-250 FX4 crew, psd,bullydog powerpup,stock airbox with donaldson filter,4" cb exhaust.44k miles.
I can get about 20 mpg with my pup set on 20 and drive like grandma. Thanks for any help.
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post #2 of 4 Old 09-07-2006, 05:22 AM
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On a 05 model i wouldn't think the rear seal was leaking.
Can you see if it's coming from up high and running down the back side?
i'm thinking O-ring on the HPOP. Thats a week point in the 6.0 design - on 03s and 04s at least, maybe by 05 they corrected that but i doubt it. Look and see if there is oil in the valley on top.
Marc can tell you more.

2003 6.0 F350 dually on high cholesterol fuel (WVO)
2000 7.3 Excursion also on a high cholesterol fuel




Last edited by Clay Henry; 09-07-2006 at 05:25 AM.
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post #3 of 4 Old 09-07-2006, 05:45 AM
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Leaking rear seal is a common mis-diagnosis with bad HPOP or turbo pedestal orings. Where the oil ends up makes it look like its a seal leak though.
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post #4 of 4 Old 09-07-2006, 11:23 PM Thread Starter
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oil leak

I did some more looking and the oil is comming from the front of the engine down around the bottom pully then dripping onto the stearing arm and blows back to cross member and other stuff. I talked to a former Ford tech today he said may be 1 of 2 front seals. He said that I should have no problem with the turbo back 4" but for shue set powerpup back to stock and remove from truck. Does this sound pretty close?
FYI I removed my K&N cold air intake and went with the Donaldson filter in stock box. The K&N had too much turbo noise and the Donaldson seems to do just as well. I found them brand new on ebay for $39.00.
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