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Old 09-03-2010, 11:42 PM   #1
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Oil on air filter

Was giving the jeep a once over and found oil on my air filter. It came from the hose that comes out of the valve cover. Any explanation or ways to prevent this?
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Old 09-03-2010, 11:56 PM   #2
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First off: That connection to that box is standard for 2.5 Jeeps.

Second: By that pattern, it would indicate a 'serious' valve cover leak.

Third: That kind of leak means that you're engine is operating 'higher' than normal compression.

Typical advice: Change the oil to correct levels (10-30 Mobil synthetic). A Good Oil filter (Wix). Learn to do this yourself.

Come back hear and ask questions afterward.

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Old 09-04-2010, 12:04 AM   #3
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Just changed my oil 2 weeks ago with 10-30. I have a 4.0. There are zero leaks on the valve cover. First thing I did was replace the gasket.
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