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Old 02-05-2013, 11:17 PM   #1
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Huge Mistake!

I think I may have made a huge mistake! I just purchased a 2006 Wrangler Sport with 32000 miles. It runs great, but this morning I noticed a few drops of oil on the garage floor. Upon further investigation it seems the oil pan is leaking and possibly the main seal. The transmission has a thin film of oil running back on it. What has me worried is at the front of the oil pan one of the bolts is broken and it appears that someone has injected some kind of black sealer around the front edge of the pan. Any advice on how to proceed?

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Old 02-05-2013, 11:25 PM   #2
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What you are describing is actually pretty common with the 4.0L engine. The rear main seal is what is probably leaking. Do not be alarmed. To fix it is actually kind of a pain, but it will not leak more than a couple drops overnight. I have lived with it for years and this is my second Jeep with that problem.

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Old 02-05-2013, 11:27 PM   #3
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Thanks for your reply. What do you think about the broken bolt and sealer that was injected around the front of the oil pan?
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Old 02-06-2013, 12:05 AM   #4
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So I may have answered part of my question. Is the "sealer" I'm seeing around the front of the oil pan RTV? Should I be worried about the broken bolt?
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Old 02-06-2013, 12:24 AM   #5
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the broken bolt isnt the best thing in the world but if its only one and it isnt leaking in the front right now i wouldnt worry to much. as for the oil drips in the back, as it was said before its a pretty common thing with the 4.0, or at least from what i've seen. you might also want to check the valve cover to see if it is tight, i know thats where mine is leaking and traveling down the back of the block. also, when it comes to tightening the oil pan bolts, make sure you dont over tighten them or you can 1) snap them like the previous owner or 2) compress the gasket or rtv and cause a leak.
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Old 02-06-2013, 07:15 AM   #6
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IF it is that bothersome to you.... you can fix the leak and R&R the busted bolt. I think you should leave it alone for now and drive it for a while... have fun and get to know your new Jeep a little better.

I do understand the feeling of wanting it PERFECT..... but that is just plain nuts....I know this now.....

Have fun with it..... don't sweat the small stuff off the jump.... ENJOY!!!
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Old 02-06-2013, 07:55 AM   #7
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Yep,
Actually have had my rear seal done twice. Very, very common.

I'd be getting any oil leak fixed now, not later. That's way to much like riding on borrowed time.

Neither the busted bolt or the silicone or what ever sealer was used on oil pan is that big of a deal to fix.
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Old 02-06-2013, 08:19 AM   #8
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Pictures would help. Since I just replaced my oil pan, a couple of months ago, I can you that there are spots that you apply sealant before you install the new pan and gasket, both at the front and rear or the oil pan. Also, my oil pan (2002 Sport, 4.0) had 28 bolts (3 different types) that held it to the engine. I'm curious if you are seeing a broken bolt, or a missing bolt, or a bolt that just LOOKS different that the others. I'm pretty sure some of the oil pan bolts play different roles depending on if you Jeep is a Manual or automatic too. They might have different attachments or brackets on them.

If you have to change your oil pan, it can be done, it's just time consuming. Good luck.

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