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Discussion Starter · #1 ·
I tow an enclosed trailer and have noticed on the last few trips that my storage box on the tongue and the front of the trailer has random oil splatter spots. The spots aren't dripping and actually on the dry side. I have checked under the truck, trans and engine area and see a bit at the back of the rear bumper but not much else. Rear is dry. About the only area under the hood that seems to stay messy is the driver side breather on the valve cover. It's not to the point of being a drip that I can tell.

Any ideas appreciated.
2000 F350, 7.3, Auto, 165k, Crewcab, 8ft.
 

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Discussion Starter · #7 ·

A likely cause would be the o-rings. Oil drips down from the connections from the HPOP to the rails into the valley, then down the back of the engine, and spatters around underneath the vehicle. Link to get the parts that you need for the repair is at the top of this post.
Exactly which 0-rings do I need from the site? I did the fuel filter bowl a few years ago with the upgraded o-rings.

Thanks.
 

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Discussion Starter · #9 ·
You need to figure out which ones are leaking. Turbo pedestal or HPOP lines are common ones, but you don't want to randomly replace them. Get it good and clean and then drive it a bit to see if you can find out where from. When my HPOP lines started leaking I had at least 2 quarts in the valley that would leak down the back of the engine, but on an incline it would pour out.
But that was engine oil - correct? I am not losing any appreciable oil, it uses less than a quart every 6000 or so.
 
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