01 7.3 leaking motor under fuel filter checked lines but no leaks

[j_verscheure]

My 01 F-250 started leaking motor oil today it is coming from somewhere under the fuel filter assembly. I checked the oil lines and it does not seem to be a o ring problem is there something I cant see underneath causing the leak?

[monkey_187]

can yo post a picture of what it looks like? One of the HPOP fittings is known for leaking and is an easy fix.

[j_verscheure]

I tore it All down and it was the o-ring on the so called non servicable plug leaking on the HPOP. I went to the International dealer and bought a kit Part#1842906C92 for the new servicable plug and o-ring for $52.65. I had to order the drivers side Quick release oil line it was $60.00 it will be there in the morning. I already rebuilt the pump and put it back in. i will finish it up tomorrow and hopefully it will be back up running! I will let U know how it goes Thanks for the reply!

[EArmsF350]

I just discovered an oil leak somewhere under my fuel filter assembly today. Leaking pretty good. You said there is a non-serviceable plug there somewhere that is known for leaking? Can you tell me the best way to fix it as far as what needs torn down. Obviously dont want take off more than I have to for an o-ring. Thanks.

[jesilvas]

Go to dieselorings.com. Great site, Bob is great, and has lots of good info and instructions on how to fix it.

[j_verscheure]

Yes I Agree Diesel O-Rings.com is the place to go! Great prices and the site is packed Full of helpful Information! When my HPOP went out I did not know the site and watched a Youtube video about going to the International Dealer and getting a new plug and o-ring. Since the pump rebuild I found the website and have completely rebuilt my Fuel Bowl with his O-Ring kit and I could not be Happier! Do yourself a favor and Buy his replacement plug and O-ring But while you got that thing tore down replace ALL and I mean ALL the 4 O-Rings and Non-Servicable plug or you will be back in there again down the road! There is a great Youtube video to watch to show how to tear it down that helped me out Allot!!!!!!!!!!!!!!!! Hope this helps and Happy New Year Everyone!

[jesilvas]

Yea, as long as you're pulling it all out, just replace the orings on pretty much all of it. That way you won't have to again.

[vdog0531]

How long of a process is it to replace the o ring on the hpop?

[Silver200273L]

Ok just curious. Does Hpop connect to the fuel filter? Just wonder because mine leak pretty bad. But after clean up and now there is no leak found. I don't know where the leak is coming from. I looked in the valley and seen some diesel fuel so I assumed maybe I have diesel fuel leaking somewhere around fuel filter housing. Let me know.

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[jesilvas]

The HPOP doesn't really have orings. Has a gasket where it mounts to the block and few other things but it's mainly the lines and fittings. Same thing for the fuel bowl.

Does the HPOP physically connect to it? I don't think so, but idk. As far as fluid connections, no.