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Old 03-23-2012, 06:48 PM   #1
stritt45's Avatar
Join Date: Feb 2012
Posts: 90
help with leak (pics included)

Hey guys so I check my fluids in my 2000 TJ 4.0L every couple of weeks. Well I neglected it and I went 3 weeks this time. Of course I check and my coolant level is at the add line. So in 3 weeks I lose most of my fluid. I get under the vehicle to investigate because I have never seen any leak spots on my driveway. Now Im new to jeeps and not a mechanic. But from the reasearch I have done I notice a leak that is right behind the oil pan. isnt that the transmission??? anyway I included pics because I wasnt sure. The radiator is new, only 3 months old with a new water pump. One pic is a close up of the leak, and the other is a far away shot. Thanks for the help guys.
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Old 03-23-2012, 07:19 PM   #2
Join Date: Mar 2012
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It might be spraying back onto the tranny from the oil pan. I pulled my 'new' '06 into the garage to give it an initial once-over and noticed I had a similarly dirty-looking oil pan and tranny, with a small drop of oil dripping onto the floor from the front of the tranny. Almost all of the bolts around the circumference of the oil pan were about 1/8 to 1/4 turn loose. I tightened those all up wrench tight and the leak stopped.


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Old 03-23-2012, 07:34 PM   #3
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Oh I meant to add, the leak on the front of the tranny is engine coolant not transmission or oil. Thats why I am confused.
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Old 03-23-2012, 08:09 PM   #4
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Oops. I guess my remedy wouldn't work for you then .

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Old 03-23-2012, 08:34 PM   #5
Join Date: Nov 2011
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Check the hoses coming from the waterpump. I have a leak identical to yours and it is coolant running down the block and then down the back. After I tightened up the hoses it fixed it
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Old 06-10-2012, 04:54 PM   #6
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Hey stritt45, did you get this sorted? Im in the same position - exactly the same leak.
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Old 06-10-2012, 07:20 PM   #7
Join Date: May 2012
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Check around the cylinder head for any leaks. Hopefully it's not the head gasket. Also, look at your freeze plugs and the coolant drain plug on the block itself. Should be on the driver's side below the exhaust manifold. Otherwise I'm not sure. At the very worst it could be a crack in the block. Not trying to scare you, just listing the things it could be. Someone else may know another possibility. If you don't find anything that looks for sure like it's the source clean the everything real good with engine cleaner, then look and see if you can see the source of it after driving it for a few days.
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Old 06-10-2012, 08:02 PM   #8
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Yea mine was the freeze plug. Shop wants 600 to fix. The leak is so small right now im waiting a few weeks until i get it done.
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Old 02-11-2014, 11:53 AM   #9
Join Date: Sep 2013
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Interesting....I think mine is doing the same thing. I am getting some oil leak as well I am going to try and locate it this coming weekend. Mine is dripping coolant right from the middle of those bolts I'm going to have to get under the jeep and take a closer look.
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Old 02-12-2014, 02:09 PM   #10
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Location: St. Augustine, FL
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Wake I am having the same issue ... It appears to be my rear main seal. From what I've learned the RMS and valve gaskets are notorious for leaking and it comes out right there.

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