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Unread 09-01-2009, 07:24 PM   #1
baldone
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1991 XJ Cherokee 
 
Join Date: Apr 2009
Location: Cavan
Posts: 30
1992 yj

i have a 1992 yj 4.0

the problem is that the air filter is getting soaked in oil.

there is even oil dripping out of the hose that connects the TB and air box.

anyone have any ideas why this is happening?

Cheers

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Unread 09-01-2009, 07:42 PM   #2
HMUSN
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1991 YJ Wrangler 
 
Join Date: Jul 2009
Location: NJ
Posts: 214
blow by would be my guess.
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Unread 09-01-2009, 07:43 PM   #3
Axl Jack
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1994 YJ Wrangler 
 
Join Date: Mar 2007
Location: Old Forge, PA (Scranton)
Posts: 2,513
Valve cover gasket?
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94 YJ w/ stuff. All the work/money I put into it, and the comment I get most is my $20 mod: "Hand throttle?!? That's awesome."
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Unread 09-01-2009, 07:43 PM   #4
RedlineRyan
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1990 YJ Wrangler 
 
Join Date: Jan 2009
Location: Tangent,OR
Posts: 142
check your ccv and pcv valves on the top of the valve cover buy at your local jeep dealer like 25 bucks
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Unread 09-01-2009, 07:59 PM   #5
dbikers
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1989 YJ Wrangler 
 
Join Date: May 2006
Location: under my jeep
Posts: 951
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Originally Posted by RedlineRyan View Post
check your ccv and pcv valves on the top of the valve cover buy at your local jeep dealer like 25 bucks
i'm thinking the same thing..yer crankcase is either building up too much pressure and/or your pcv/ccv isn't working properly.
if the ventilation system is working properly then you may want to look at your compression and see if there is blow-by
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