1991 Laredo bad oil leak has formed...HELP
Thread Starter
Junior Member
Joined: May 2011
Posts: 44
Likes: 0
From: Rockmart, GA
Model: Cherokee(XJ)
I have a 1991 Laredo 4.0 and what started as a drop about the size of a dime has become the size a coke bottle(length wise). It just started doing this after a 250 mile round trip to NC and back. 
I also noticed it has some small "splatters" going towards the back of the vehicle now to. Is this a bad valve cover gasket, oil pan gasket, or other ?
Please any help will be greatly appreciated.
DM<

I also noticed it has some small "splatters" going towards the back of the vehicle now to. Is this a bad valve cover gasket, oil pan gasket, or other ?

Please any help will be greatly appreciated.
DM<
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
The "0" rings in the oil filter mount are a common culprit. You also want to make sure that deal coming out of the top rear of your valve cover and its tube are clear. It sucks from the crankcase helping to keep pressure from blowing oil out somewhere. (I returned the rear main seal I had bought after I found my tube completely clogged). Of course if you clean it well then watch right away with good light you will find it. Watch that filter mount. It will blow back and drip off the bottom of the bell housing. Have fun!
Last edited by DFlintstone; Oct 10, 2011 at 02:57 PM.
Thread Starter
Junior Member
Joined: May 2011
Posts: 44
Likes: 0
From: Rockmart, GA
Model: Cherokee(XJ)
The "0" rings in the oil filter mount are a common culprit. You also want to make sure that deal coming out of the top rear of your valve cover and its tube are clear. It sucks from the crankcase helping to keep pressure from blowing oil out somewhere. (I returned the rear main seal I had bought after I found my tube completely clogged). Of course if you clean it well than watch right away with good light you will find it. Watch that filter mount. It will blow back and drip off the bottom of the bell housing. Have fun!
DM<
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