High Pressure Oil Pump Leak

BigRedDieselVan · #1 (**permalink**) 06-28-2011, 11:21 AM

I have an oil leak on my 1999 E-350 7.3. It appears to be near the outlets for the two high pressure hoses that go to the two cylinder heads. I have replaced the outer o-rings on the two fittings and the drain plug at the aft end of the HPOP. Those three o-rings came in a kit at the dealer. The leak is still there. Is there a way to test the HPOP for leaks? It is a very tight squeeze in the van configuration; my truck is much easier to work on.

layson · #2 (**permalink**) 06-28-2011, 02:05 PM

Best way to do it, is clean everything off real good. Let it dry. Then start it up and maybe drive it then start looking, sometimes it is easiest to take paper towels and place them throughout the valley. Then as you pull them out, take note on where the oil is coming from.

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