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Old 04-04-2014, 07:12 PM   #1
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Rear Seal leaking.... HELP

I think the rear seal is leaking on my 2001 TJ. I thought I would seek quidance from those of you who have replaced one...How hard is it to replace? If I decide to have a shop do it what is a fair price? I like working of my own cars but I dont know if this is real time consuming or not... Like do I need to yank the engine? or just drop the transmision. 4.0 Liter engine 5 speed manual transmission.... Thanks in advance

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Old 04-04-2014, 07:25 PM   #2
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The RMS for the engine just requires you to remove the oil pan and unbolt the exhaust from the manifold. Easy job just messy.

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Old 04-04-2014, 07:31 PM   #3
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This job can turn into a huge headache! I tried doing mine to find out that you have to completely remove the exhaust and loosen the trans to pull the oil pan. If your exhaust bolts are rusted and you break the head off then that just adds to the headache. I ended up paying just under $400 to have a local shop finish it. Good luck!
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Old 04-04-2014, 11:38 PM   #4
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How bad is it leaking? Many seap a little and is not uncommon. Mine has been looking wet for many years and may leave a drop or two a week and is nothing realy to worry about.
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Old 04-05-2014, 07:24 PM   #5
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I get probably 20-30 drops every day in the driveway... If I drive it hard (70 mph) for a few hours then I get a good bit on the drive after it sits for the night...
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Old 04-05-2014, 08:20 PM   #6
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Quote:
Originally Posted by flier320 View Post
I get probably 20-30 drops every day in the driveway... If I drive it hard (70 mph) for a few hours then I get a good bit on the drive after it sits for the night...
Mine drips like 1-2 drops a week on the driveway, and I am a big fan of the "leave it be" school of thought---but 20-30 drops a day is a bit too much, so you should get it done. I have found $600 or so to be the going rate for shops to do the RMS. Any yes it is not a hard job, but messing with the exhaust and various rusty bolts make it a PITA to do yourself.

I see shops typically $600 or so to do the job so I vote for DIY. Just so you know it is a better than 50/50 chance it will start leaking again anyway within a year of the new RMS being installed. It will just drip much more slowly probably for the life of the Jeep.

It is also a better an 50/50 chance the shop will end up busting some rusty exhaust to manifold bolts in the process, and then try to charge you for the extra repairs. They also will likely not take as much care as you would with placing the oil pan gasket properly and using RTV on the corners as needed, so your pan will leak too. The way I see it, you can mess this all up yourself for free so why pay someone else to screw it up!
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Old 04-05-2014, 09:39 PM   #7
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Flier320. Do you have a northern Jeep or a southern Jeep. My son's 2003 with 120k miles spent most of its life in Texas. Everything came apart, Including headpipe to exhaust manifold bolts with ease. It is not a tough job if your exhaust isn't all rusted.
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Old 04-05-2014, 10:12 PM   #8
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My Jeep lived in Missouri a few years then three in North Carolina then probably another four in Alaska before I easily fixed it in Alaska.
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Old 04-05-2014, 10:24 PM   #9
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Old 04-06-2014, 07:12 PM   #10
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Easy to fix with some simple home tools and basic mechanical knowledge. Seal costs about $18 for a felpro seal. Jack her up and secure with jack stands. You remove the starter. Drain the oil pan, and unbolt and remove oil pan. Clean her out good. Depending on how old as how many miles, it won't hurt to get a new oil pump while your at it since your already down there. Your main seal is on the back wall of that oil pan. Easy to see. There are several videos on how to remove it from the straight 6 engine. Just look on YouTube. Get you a fresh oil change and filter when it's all back together and bam! Done. Easy peazy!
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Old 04-06-2014, 09:32 PM   #11
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Thanks for the info guys.. Looks like Im in for a fun weekend... I agree...no one can fix your jeep like you can.... Good idea about an oil pump while I'm at it...
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Old 04-06-2014, 11:12 PM   #12
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If you decide to do it yourself spray some penatrating oil of some sort every day a few days before you start.
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Old 04-07-2014, 08:21 AM   #13
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Thanks for the info guys.. Looks like Im in for a fun weekend... I agree...no one can fix your jeep like you can.... Good idea about an oil pump while I'm at it...
Good luck this weekend. Remember to not overtighten the oil pan bolts, it will distort the gasket. You need a good torque wrench.

Install the 1/4 inch oil pan bolts. Tighten bolts to 84 in. lbs torque.

Install the 5/16 inch oil pan bolts. Tighten these bolts to 132 in. lbs torque.

Thats Inch Pounds, not foot pounds.
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Old 04-08-2014, 11:33 AM   #14
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Go for it! I thought i had that leak but replaced the vavle cover gasket first and nothing on the ground so far. If i had to replace the RMS i would do it with a buddy..looks like its just tedious not too hard and lots of time on your back on the garage floor without a lift! Good luck.
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Old 05-19-2014, 09:08 AM   #15
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Fixed

Ok found that the problem. Was not the main seal thankfully. Looks like it was coming from the transmission. It was coming from the top of the Transmission where the gear shift attaches. tighted a few bolts and problem I think is fixed. Spent the day replacing the oil in the transmission and the transfer case and now Im good to go.... On to the next the job...

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