Front axle breather tube leaking - Jeep Wrangler Forum

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Old 05-12-2013, 01:41 PM   #1
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Front axle breather tube leaking

5k on the jeep...this is new..hasn't happened before.
should I worry?
Clean it up and keep an eye out?
If it had been overfilled from the factory wouldn't it have shown itself sooner?
thoughts?
advice?

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Old 05-12-2013, 01:53 PM   #2
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Remove fill plug and check fluid level. Should be right at the bottom of the fill plug hole.

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Old 05-12-2013, 09:43 PM   #3
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If it has a drip you can get it fixed under warranty. Mine seeped out some fluid @ maybe 4000 miles on the rear differential, but they wouldn't reseal it without an active drip. It end up not becoming an issue.

If you want an easier way to fix it yourself, if need be, you can use "lube locker" vs RTV silicone to seal the differential housing.
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Old 05-12-2013, 11:25 PM   #4
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Unless it's overfilled, it shouldn't push lube out the breather.
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Old 05-12-2013, 11:41 PM   #5
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Weird that it just started. Thanks


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Old 05-13-2013, 12:23 AM   #6
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Quote:
Originally Posted by Rooster76 View Post
If it has a drip you can get it fixed under warranty. Mine seeped out some fluid @ maybe 4000 miles on the rear differential, but they wouldn't reseal it without an active drip. It end up not becoming an issue.

If you want an easier way to fix it yourself, if need be, you can use "lube locker" vs RTV silicone to seal the differential housing.
Sorry I was watching TV and posting I thought you had a leaking diff cover. My bad.

The stock differential is impossible to overfill. I would suggest putting a hose clamp on the breather tube. You might be able to get the dealer to put new fluid in if your lucky.
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Old 05-13-2013, 12:36 AM   #7
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It isn't leaking at the diff.....leaking at the top.


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Old 05-13-2013, 12:40 AM   #8
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Quote:
Originally Posted by Rooster76 View Post

Sorry I was watching TV and posting I thought you had a leaking diff cover. My bad.

The stock differential is impossible to overfill. I would suggest putting a hose clamp on the breather tube. You might be able to get the dealer to put new fluid in if your lucky.
Very Very Unlikely YES, but not impossible. I only say this because I watched a guy back down a very steep ditch so he could put any extra quart in a rear diff one time.

Op when you say top are you referring to the end of the breather tube or the top of the diff?
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Old 05-13-2013, 05:36 AM   #9
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probably low on oil causing it to foam and push out the breather.
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Old 05-13-2013, 07:21 AM   #10
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I wouldn't worry about this, it will self correct over time. What is the PITA is the dripping of fluid onto the garage floor or driveway.

Mine does it if I run speeds over 70 and or in 4wlo for extended periods of time. What I found interesting is that it is only the front, the rear doesn't push out oil.
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Old 05-13-2013, 11:08 AM   #11
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Mine leaked from the breather tube & the diff fill plug when I first got it. My mechanic friend told me a lot of times Jeep over fills them at the factory (the only way I could imagine it could be overfilled) & to pull the fill plug & see. When I pulled the fill plug (yes, fill plug, not drain plug) a ton of gear oil came out - totally over filled. Not to mention the plug was so loose I removed it with my fingers, no tools needed. Nice, huh?

Haven't had any signs of leaking from either spot since.
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Old 05-13-2013, 12:30 PM   #12
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^ What Sueby said. Mine was waaay overfilled and other Forum members confirmed that Jeep will overfill the front difs quite frequently. Extended running or hotter weather would cause it to expand out of the breather tube if you did not expose your Jeep to extended trips or hotter than normal conditions before the leak occured.
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Old 05-13-2013, 04:18 PM   #13
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Have you been mudding or in water lately? That could be it. It is impossible to overfill unless you inject it into the breather tube with the fill plug in.
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Old 05-13-2013, 04:49 PM   #14
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Quote:
Originally Posted by SuicideSaints View Post
Have you been mudding or in water lately? That could be it. It is impossible to overfill unless you inject it into the breather tube with the fill plug in.
This is what was thinking.. if you took on some water, it could change the overall level.. otherwise, could be overfilled slightly and the change of seasons pushed it over the edge..
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Old 05-13-2013, 04:49 PM   #15
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Have you been mudding or in water lately? That could be it. It is impossible to overfill unless you inject it into the breather tube with the fill plug in.
You are wrong on this one. If you have the pinion pointing down on a dif with the plug on the cover or up when the plug is in the diff you can easily over fill one.
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Old 05-13-2013, 04:55 PM   #16
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You are wrong on this one. If you have the pinion pointing down on a dif with the plug on the cover or up when the plug is in the diff you can easily over fill one.
I was more referring to a "normal" set up, I am a bit confused on why or when you would have that set up and overfill. Also if the plug is in how would you get fluid in to the diff to overfill it?

I cant picture what you are saying. If the diff was out and pointed at a irregular angle maybe??
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Old 05-13-2013, 04:58 PM   #17
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Does anybody have a clue how they fill them at the factory? If it is done before they are installed in the jeeps it would be very easy for them to get overfilled if someone wasn't paying attention.
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Old 05-13-2013, 07:35 PM   #18
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Does anybody have a clue how they fill them at the factory? If it is done before they are installed in the jeeps it would be very easy for them to get overfilled if someone wasn't paying attention.
From an ease of manufacturing standpoint it would make more sense time wise to fill them before the axles are bolted to the vehicles. Not sure if that's what they would do, but that's the most streamlined way I can think of
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Old 05-13-2013, 08:09 PM   #19
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WatchThis, that makes sense now. Thanks for the info and clearing that up. I guess someone could be filling it on e decline (during servicing) and that would be away of overfilling it too.

I retract my impossible statement and I stand corrected.
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Old 09-12-2015, 12:36 PM   #20
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Front Axle Breather Tube Leaking 2011 JK

I read a previous thread on this subject but it didn't seem to have a firm solution.

Has anyone come up with an answer on this one? My 2011 JK was leaking around the front diff and the breather tube. I cleared the differential leak up with a lube locker gasket. Great product. However it is still leaking for the vent. The diff is not over filled. Any suggestions would be appreciated!
Thanks!
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Old 09-12-2015, 02:27 PM   #21
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Originally Posted by Rooster76 View Post
Sorry I was watching TV and posting I thought you had a leaking diff cover. My bad. The stock differential is impossible to overfill. I would suggest putting a hose clamp on the breather tube. You might be able to get the dealer to put new fluid in if your lucky.
It is not impossible to over fill, unless the boys down at my lube shop can do the impossible! It probably did not start leaking until you heated up the differential, the oil expanded and bled out the only hole available.
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Old 09-14-2015, 09:08 PM   #22
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Originally Posted by Sueby View Post
My mechanic friend told me a lot of times Jeep over fills them at the factory (the only way I could imagine it could be overfilled) & to pull the fill plug & see. When I pulled the fill plug (yes, fill plug, not drain plug) a ton of gear oil came out - totally over filled.
Based on this and other posts here, I took out the fill plug on the front and rear differentials on our new 2015 JKU Sahara. Haven't been in any water, not yet anyway. The front was over filled by probably 3 ounces at the factory (be sure to have a catch pan ready), rear was perfectly at the bottom of the fill plug where it should be. Scraped the paint off the fill plug threads, and tightened to factory torque 25 ftlb. I'll probably change the fluid at about 2000 miles to put synthetic in.

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