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Unread 12-20-2011, 06:19 PM   #1
jeepyj13
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1993 YJ Wrangler 
 
Join Date: Nov 2010
Location: greenville, mississippi
Posts: 1,797
jeep yj 4.0 passenger oil leak

yjers i need some assistance on this issue. recently my 93 yj has been leaking oil pretty badly on the pass. side of engine. ok i looked under it and the only indication to my reasons is that the starter is basically drenched in oil. it has a spot of oil under the starter on tyhe ground too so i assume my oil sending unit is going out cause theres oil all over it too. i see no leaking around the valve cover pan so i marked that out. is this a common problem on these 4.0L. im mechanically incline but havent worked on vehicles for sometime. if this description i gave you all is correct, is it easy to replace? this is my DD too. thanks

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Unread 12-20-2011, 06:57 PM   #2
PA_YJ19
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1994 YJ Wrangler 
 
Join Date: Mar 2011
Location: Altoona, PA
Posts: 1,063
almost everyones valve cover leaks at some point, go get one they r like 5 bucs. I think theres 8 bolts if i remember correctly and clean the surface very well before putting it back on as well as torque it down correctly. I would go that route and clean up the whole area so then u can drive around a little and see if that was it or u have a leak sumwhere else in that vicinity.
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Unread 12-21-2011, 06:58 AM   #3
Berniebikes
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1988 YJ Wrangler 
 
Join Date: May 2010
Location: Williamsburg, VA
Posts: 724
Probably in order that you will need to check
valve cover
oil sending unit
dipstick tube (little o ring where it inserts to the block)

or if you are like me with a mechanical fuel pump removed and a blockoff plate, check that.
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Unread 01-20-2012, 11:25 AM   #4
jeepyj13
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1993 YJ Wrangler 
 
Join Date: Nov 2010
Location: greenville, mississippi
Posts: 1,797
got it fixed! it was the oil sending unit. this is a great site and thanks yjers
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