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Unread 01-22-2015, 02:48 PM   #1
jdg80129
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1999 TJ Wrangler 
 
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My RMS or Not?

I have a '99 Sahara 4.0 and it was dripping from the backside of the oil pan so being the inline 6 I instantly diagnosed the rear main seal. I have since replaced it but it has started leaking at the same spot again. Could it be anything beside the rear main?

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Unread 01-22-2015, 02:58 PM   #2
TJ4Jim
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1999 TJ Wrangler 
 
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Very common for the rocker cover bolts to be loose allowing oil to drip down the backside of the block winding up with a drip in the exact same spot as the RMS
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Unread 01-22-2015, 02:58 PM   #3
biffgnar
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2006 TJ Wrangler 
 
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Check the valve cover back by the firewall.
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Unread 01-23-2015, 05:46 AM   #4
mdm
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Oil spilled when removing the oil filter can also end up there if not cleaned up.
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Unread 01-23-2015, 05:56 AM   #5
bobthecatkiller
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Quote:
Originally Posted by mdm View Post
Oil spilled when removing the oil filter can also end up there if not cleaned up.
Not just that but also the oil filter adaptor o rings are notorious for leaking which again goes down the block to the back side of the oil pan giving the impression its the RMS leaking.
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Unread 01-23-2015, 08:42 AM   #6
TheBoogieman
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Quote:
Originally Posted by jdg80129 View Post
I have since replaced it but it has started leaking at the same spot again. Could it be anything beside the rear main?
Very common to not seal properly and leak again.
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