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Old Sep 9, 2009 | 11:11 PM
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Oil Leak

I have a 2003 f-350 truck. During a recent business trip, the truck sprung a huge oil leak. It was leaking about a quart every 5 min. I finally figured out where it is leaking from. Its coming from the passenger side intake plenum. I can get all the bolt out of it except for the front bottom one. It comes out about a 1/4" and hits the high pressure oil pump/reservoir. Does anybody know how to get this bolt out without taking the front of the engine apart? Any help is appreciated. Thanks
 
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Old Sep 9, 2009 | 11:14 PM
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I hate to be a dummy but how would the intake plentum leak oil
 
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Old Sep 9, 2009 | 11:26 PM
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Could it be Item #21 leaking giving the appearance of the intake plenum leaking?
 
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Old Sep 9, 2009 | 11:35 PM
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Originally Posted by danskool
Could it be Item #21 leaking giving the appearance of the intake plenum leaking?
or an o-ring on one of the three plugs
 
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Old Sep 9, 2009 | 11:55 PM
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Yeah don't take an intake plenium out!!! Sounds like an oring!
 
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Old Sep 10, 2009 | 05:40 AM
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Ah yes, Missed it. The 3 plugs on the passenger side. Oring #31

Also just noticed the sketch don't show the 3rd oring for the separator valve. Second thought, Maybe because it is a sub-assembly, never mind.
 
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Old Sep 10, 2009 | 09:11 AM
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Thanks for the replies.........I thought oil came through the intake plenum...mine is completely soaked on the inside with oil. I can see the oil running along the top of the plenum, against the head and then down into the valley. Are they any o-rings that sit almost near the front of the head that can leak in that spot?
 
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Old Sep 10, 2009 | 09:14 AM
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Yep a plug with an o-ring I had to replce one for a friend yesterday
Think the second is the fitting for HP oil line is also o-ring boss
 
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