4.0 dumpin oil.out the breather intake line
Thread Starter
Senior Member
Joined: Apr 2011
Posts: 585
Likes: 3
From: west virginia
Year: 1989
Model: Cherokee
Engine: 4.0
Hey guys just picked up a 93 2 door xj with 120,000 on it drove it last night did fine then today I was driving it and it began to lose power and died no knocking or anything I raised the hood and oil was everywere it was blowing out the elbow on the front of the valve cover on the inlet for the breather the elbo was dry rotted and cracked but it still filled my air box full of oil was woundering if anyone had any advise after I let the jeep sit for a while it started back up didnt have any power but still ran so Im not sure if the motor is toast or what I havnt done a compression test on it since I know alot of oil and gas got dumped into the cylinder and will give me some skrewy reading
CF Veteran
Joined: Jan 2012
Posts: 3,170
Likes: 312
From: Australia
Year: 1997 (RHD)
Model: Cherokee (XJ)
Engine: 4.0 ltr
Likely rear vent tube is blocked (the one towards to rear of the valve cover.
Take valve cover off, replace both 'elbows', clean tubes/hoses.
This probably didnt happen overnight...do you know anything about the history of the jeep....or just bought it..?
Take valve cover off, replace both 'elbows', clean tubes/hoses.
This probably didnt happen overnight...do you know anything about the history of the jeep....or just bought it..?
CF Veteran
Joined: Jan 2012
Posts: 3,170
Likes: 312
From: Australia
Year: 1997 (RHD)
Model: Cherokee (XJ)
Engine: 4.0 ltr
So, you got some work to do 
The plastic grommets will very likely crumble when you will try to take them out, so have some new ones ready.
If its been sitting for two years, I'd look into changing all the fluids, do a tune up and see how it goes...
Coolant might be worth a look too...

The plastic grommets will very likely crumble when you will try to take them out, so have some new ones ready.
If its been sitting for two years, I'd look into changing all the fluids, do a tune up and see how it goes...
Coolant might be worth a look too...
Thread Starter
Senior Member
Joined: Apr 2011
Posts: 585
Likes: 3
From: west virginia
Year: 1989
Model: Cherokee
Engine: 4.0
Thread Starter
Senior Member
Joined: Apr 2011
Posts: 585
Likes: 3
From: west virginia
Year: 1989
Model: Cherokee
Engine: 4.0
Well I figured out cyclinder 6 is completly dead changed plug and wire ran for a little bit then started missing agien pulled the plug it was soaked in oil gona do a compression test this weekend but guessin from the amount of oil its got a broke ring or some bad wear
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CF Veteran




Joined: May 2012
Posts: 7,965
Likes: 964
From: Lost in the wilds of Virginia
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
Well, for a thousand bucks and no rust you got a good deal.
Now you can afford to buy some punctuation so we can read your posts!
Oh, wait.... It's free here on the cherokeeforum! What a deal!
Now you can afford to buy some punctuation so we can read your posts!
Oh, wait.... It's free here on the cherokeeforum! What a deal!
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