oil in my air filter
08-08-2011, 07:13 PM
#1
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Model: Cherokee
oil in my air filter
i have a 1995 jeep cherokee sport 4x4 4.0 im haven problems with my air filter loaded with oil. anyone know how to fix this problem. o and im told it has no pcv valve.
08-09-2011, 05:04 PM
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Year: 1990XJ/1989MJ
Model: Comanche
Engine: 4.0L Renix
Yes it is called blowby. It is caused by there being increased pressure in your valvecover from compression leakage, usually past valve stems. The real solution is a rebuild but you can often delay that by new valve seals and a complete cleaning of the internals of the valvecover.
08-09-2011, 05:45 PM
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Year: 1990
Model: Cherokee
Engine: 4.0L
I had the same problem, I took the vc off and cleaned the sludge out of it and now it still does this but not near as bad.
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