Oil in the valley
#1
Oil in the valley
I have a 99, F350, 7.4 Turbo Diesel. I am getting an accumulation of engine oil in the valley just slightly forward of the turbo. It is about 3/4 of a coffee cup every 1000 miles or so. It is enough that it is a concern.
Are there any typical "look here first" place I should check to determine the source?
The truck has 166K on it and runs well other wise.
Thank you!
Eric
Are there any typical "look here first" place I should check to determine the source?
The truck has 166K on it and runs well other wise.
Thank you!
Eric
#2
I have a 1999 e350 7.3. I had oil on top of the intake manifold also. I replaced the two rubber "O" rings under the turbo. If I remember correctly they're above the exhaust back pressure manifold, it's been awhile since I replaced them. I bought the "O" rings from a Ford dealer.
#3
If the oil is more forward in the valley and puddled under the the fuel/water separator could be the HPOP (high pressure oil pump)
If so, look for HPOP high pressure line/s for the orings leaking or the brass plug underneath (the white connector in the image) . A common leak there as well as the lines. Since oil doesn't run up hill, if its wet towards the front and under the HPOP chances are its not a pedestal leak..
If so, look for HPOP high pressure line/s for the orings leaking or the brass plug underneath (the white connector in the image) . A common leak there as well as the lines. Since oil doesn't run up hill, if its wet towards the front and under the HPOP chances are its not a pedestal leak..
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