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post #1 of 6 Old 06-11-2021, 11:29 AM Thread Starter
Sunsation32
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Oil leak

Can someone give me some insight with an oil leak? Iím not 100% sure, but it appears to be the rear main oil seal or the oil pan gasket. If anyone can tell me, with certainty that oil seal is two piece or a one piece seal. It is a 2004 Grand Cherokee Limited, with the 4.7 v8, standard, not HO. Thanks! Jay

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post #2 of 6 Old 06-11-2021, 01:40 PM
WJ60
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The rear main seal is one piece, and the pan gasket is also one piece, and usually comes with the windage tray.
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post #3 of 6 Old 06-11-2021, 08:03 PM
Bigrigr
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Agreed....but dont rule out the other gaskets that can leak down there. Valve cover gaskets leaking are pretty common

'00LMTD-4.7l,242hd,D30,D44A,3.73's,True-trac front,Spartan rear,4" short arm lift,JK'sW/32's
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post #4 of 6 Old 06-11-2021, 08:54 PM
exergy
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Like Bigrigr is saying, alot of leaks find their way to that same place. I would check the back of the valve covers and also look for oil dripping on the starter. The crank sensor is right there too. No doubt the oil pan gasket is a good suspect.
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post #5 of 6 Old 06-11-2021, 09:04 PM
xcaliber81
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My valve covers leaked pretty bad on my last engine and not 1 drop made it to the starter cause it hits the exhaust manifold 1st
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post #6 of 6 Old 06-11-2021, 09:06 PM
exergy
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Something else mentioned on this forum alot -- you could look behind the cover/support that sits between the engine and transmission to see if there is actually oil inside there or if its just running down on the outside. Might have to drop the exhaust if you want a good look with the cover all the way off. For what its worth, I have two 2004 WJ with rear mains that are still good but the front seals on both wore a groove in the metal.
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