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Old 02-18-2013, 01:56 AM   #1
Neltronic's Avatar
Join Date: Aug 2012
Location: Irvine
Posts: 287
Oil Pan? possible leak

Hey all, Sorry still getting to know jeeps.

The squarish box with the nut marked in yellow in the picture is the oil pan right? I was doing my usual quick inspection as i was gassing up this morning and noticed a layer of oil on this part. I took this pic after i had wiped it with a paper towel (you can kind of see the wipe mark).

I never ever have any drip marks on the ground under the jeep anywhere (one of the reasons i bought it) and still dont after noticing the oil on this.

Think it might be something to worry about or is it just one of those 'jeep' things.

Thanks in advance.

98 tj se i4 5 speed manual stock everything

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Old 02-18-2013, 02:04 AM   #2
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Location: Dublin Ca
Posts: 948
It is most likely the rear main seal. They always leak on jeeps. My YJ leaked and thankfully my TJ has yet to start leaking. But in due time it will probably start sometime soon.
As for repairing it, you can but it will probably start leaking a couple weeks later. As long as it is not dripping puddles of oil, you will be ok. A couple drips here and there is normal and your oil
level shouldn't change that much.

Oh and yes that is the oil pan. But I never seen the oil drain plug on the side of the pan. They are usually on the middle.

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Old 02-18-2013, 06:40 AM   #3
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Location: Idaho
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Mine was dry when i bought it, and after doing an oil change to high mileage semi synthetic i get the same drop. Not enough to leave marks on the ground though....weird.
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Old 02-18-2013, 08:24 AM   #4
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Location: St. Augustine FL
Posts: 1,487
If it's the rear main it'll usually bead up on the transmission bell housing. Yours appears to be clean. For good measure you might want to make sure your pan bolts are tight, but until it makes it the ground I wouldn't worry about it.
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Old 02-18-2013, 09:59 AM   #5
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Join Date: Aug 2012
Location: Irvine
Posts: 287
Awesome. Thanks guys. Like i said, there is never anything in the ground. But ill def keep an eye on it.

Do you think this could be an aftermarket replacement pan since youve said youve never seen one like this?

Thanks again.
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Old 02-18-2013, 10:16 AM   #6
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Location: Missouri
Posts: 694
I thought I had a rear main leaking also and come to find out it was just my valve cover gasket. It was running down the back of the motor and pooling up on the bell housing and the bottom of the oil pan. The valve cover gasket is a much easier fix so I would check it first.

03' Freedom edition, 4.0, 5 speed, 4" zone lift, D30, Superior D35 with detroit locker, 4:56 gears, 33x12.5 bigfoot xt, 15x8 eagle alloys

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