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oil leak please help

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Old Oct 6, 2010 | 04:43 PM
  #1  
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mickwalker
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oil leak please help

Hi There, I need help with a oil leak. Its on the drivers side rear. I have a 04 with a 5.4 3v with 100k. It will only leak when driving. I have had it on the rack for more then 8 hr on three different trips to the shop. No one can find this leak, because it will only leak when driving. Anyone with info on this. Thank you.
 
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Old Oct 6, 2010 | 05:16 PM
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Sounds like a valve gasket cover to me.
 
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Old Oct 6, 2010 | 05:16 PM
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Valve cover gasket
 
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Old Oct 6, 2010 | 06:12 PM
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bridge
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Or it could be the, uh, ummmm...Sorry, lost my train of though, what was the question again?
 
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Old Oct 6, 2010 | 06:17 PM
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motor running?

So has the motor been running while it was on the rack? I would think that a high idle would create an oil leak too, if it was a cover. I would lift the truck just enough to get under there, get a good light and a small telescoping mirror to look around up there. There isnt much else up there to leak if it isnt that.
 
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Old Oct 6, 2010 | 06:44 PM
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Originally Posted by bridge
Or it could be the, uh, ummmm...Sorry, lost my train of though, what was the question again?
x2
Kind of like watching the end of "The Man Show" a few years back.

Sorry I'm of no help on the leak.
 
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Old Oct 6, 2010 | 08:25 PM
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oil leak problem

Originally Posted by baitmaster
So has the motor been running while it was on the rack? I would think that a high idle would create an oil leak too, if it was a cover. I would lift the truck just enough to get under there, get a good light and a small telescoping mirror to look around up there. There isnt much else up there to leak if it isnt that.
Thank everyone for your response, But the valve gaskets are fine. I have had the truck in 3 different ford dealers with trained personal. Thay are stumped. As am I. I would need someone who has had this problem, and was able to find out where its comming from. Thanks, Mick.
 
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Old Oct 6, 2010 | 08:29 PM
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Might be time to add some UV dye to help find the leak.
 
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Old Oct 6, 2010 | 10:18 PM
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It's not that hard to figure out. Clean the affected area w/ brake clean and dry it w/ compressed shop air. Take it for a ride and then put it back on the hoist and see where the oil's coming from. Could be a leaking head gasket or cracked head? Where exactly is it leaking on the engine? Up near the head, or down near the oil pan?
 
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