oil in air filter?
04-25-2010, 11:47 PM
#3
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Join Date: Mar 2010
Location: Modesto
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Year: 1993
Model: Cherokee
Engine: 4.0 high output straight 6
You need to replace or add ( if your cherokee is not euipped) a pcv valve to the front breather on the valve cover. The CCV system on your jeep is clogged ( breathers in the valvecover) and is causing the oil to be pushed through the front valve cover breather through the hose into the airbox.
Do a quick search on google its EXTREMELY common on cherokees and a really easy fix
Do a quick search on google its EXTREMELY common on cherokees and a really easy fix
04-25-2010, 11:48 PM
#4
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Join Date: Oct 2009
Location: Lancaster, PA
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Year: 1990
Model: Cherokee
Engine: 4.0 inline 6
the "pcv" valve tube/grommet have gone bad (tube going to the back of the valve cover, when looking at it from the front of the car with the hood open) or has gotten clogged
same scenario with the front breather hose.
if those are fine the valve cover needs to be taken off and the inside needs to be cleaned off
same scenario with the front breather hose.
if those are fine the valve cover needs to be taken off and the inside needs to be cleaned off
04-25-2010, 11:57 PM
#5
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Year: 2001
Model: Cherokee
Engine: 4.0
you can add an oil catch for the blow by....
http://www.jeepforum.com/forum/f46/x...75/index2.html
Check the first post on that page...great idea. Doesnt have to be that elaborate but that one works well! It is a problem in everyone xj just about especially 90 and before.
http://www.jeepforum.com/forum/f46/x...75/index2.html
Check the first post on that page...great idea. Doesnt have to be that elaborate but that one works well! It is a problem in everyone xj just about especially 90 and before.
04-26-2010, 06:10 AM
#7
CF Veteran
you can add an oil catch for the blow by....
http://www.jeepforum.com/forum/f46/x...75/index2.html
Check the first post on that page...great idea. Doesnt have to be that elaborate but that one works well! It is a problem in everyone xj just about especially 90 and before.
http://www.jeepforum.com/forum/f46/x...75/index2.html
Check the first post on that page...great idea. Doesnt have to be that elaborate but that one works well! It is a problem in everyone xj just about especially 90 and before.
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