My Jeep smells like gear oil... - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 9 Old 05-05-2011, 08:10 PM Thread Starter
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My Jeep smells like gear oil...

My Jeep is smelling like gear oil (Royal Purple 75w90 to be precise....) after my diff fluid change from last week.. and the fumes are giving me a headache...

I had dumped the paper towels in the back of the Jeep from cleaning the spilled diff fluid.. but since then i have cleaned the whole interior, tried air freshners and driven with my windows down...
Now I am starting to wonder if I screwed something up and the diff fluid is spilling into something... I have not felt any change in driving, just wondering how others have taken care of their spilled diff fluid...
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post #2 of 9 Old 05-05-2011, 08:14 PM
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Put some dead fish back there for a few days. That'll kill it.

I would remove the carpeting and scrub the hell out of it. Wait until its completely dry......days and days later, before re-installing it. I would also wipe down the interior tub while the carpet is out.

FWIW- Are you sure that the smell isn't coming from an over-filled/ spewing front diff, rather than the paper towels?

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post #3 of 9 Old 05-05-2011, 08:15 PM
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Quote:
Originally Posted by StubEXrube View Post
FWIW- Are you sure that the smell isn't coming from an over-filled/ spewing front diff, rather than the paper towels?
x2, check the axle breathers for signs of gear oil.

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post #4 of 9 Old 05-05-2011, 08:31 PM Thread Starter
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Quote:
Originally Posted by StubEXrube View Post
Put some dead fish back there for a few days. That'll kill it.

I would remove the carpeting and scrub the hell out of it. Wait until its completely dry......days and days later, before re-installing it. I would also wipe down the interior tub while the carpet is out.

FWIW- Are you sure that the smell isn't coming from an over-filled/ spewing front diff, rather than the paper towels?
Quote:
Originally Posted by Goodysgotacuda View Post
x2, check the axle breathers for signs of gear oil.
How do i check this?? where is the axle breather located.. i dont see any spill on the outside... how can i check my axle seals??
thanks guys...
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post #5 of 9 Old 05-05-2011, 08:45 PM
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Originally Posted by saharac View Post
How do i check this?? where is the axle breather located.. i dont see any spill on the outside... how can i check my axle seals??
thanks guys...
I doubt it's your seals, but with that strong of an odor inside the cab, you would see it pretty obviously by the same smelling liquid all around the end of your axle-shafts or drips on the garage floor.

Axle breather tube is likely still on your axle. Its the tube that comes off the front axle on the drivers side at the differential. Black tube......You'll see it.

Where it's spewing from will be the other end, and there's not much to do about "fixing" it, besides draining some out of the diff to just under fill-hole.

You will see diff-fluid all over the tube and under the Jeep on the frame, control-arms, etc. It will be obvious.

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post #6 of 9 Old 05-06-2011, 08:07 AM
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I had this issue after I changed my Diff fluid and switched to Riddler covers. I was following directions on how to change diff fluid (directions from "another" forum) and it said use 2 quarts. The driections were for the rear diff but then went on to say, repeat above steps for the front.

Stupid me...I way overfilled the front and did not know. Started getting that rancid smell and thought it was bad exhaust or something. Was very noticeable at a stop and with my vents blowing.

Took it to the dealer and within 2 minutes they started laughing and asked if I changed my own diff fluid recently. It was pouring out of the breather tubes in the front!

Easy enough to fix but now I am very careful about how much I put in.

For the record, it appears that with my covers I can put in about 2 1/4 quarts for the rear and 1 1/4 to 1 1/3 in the front.


Hopefully your issue is just that and not something bigger.

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post #7 of 9 Old 05-07-2011, 11:27 PM
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Purple Power or Simple Green will clean it off.

Or you could rub Vomit and Fresh Dog poop on it... At least they smell better than Gear Oil

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post #8 of 9 Old 05-08-2011, 05:36 PM
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ok since no one told you were the diff breather tubes are I will. The front runs up the shock tower on the drivers side, you will see a white plastic cap on top. the rear is on the passenger side on top of the frame rail and at base of the inner fender liner. If you over filled the diffs it will stop coming out the breathers once it is low enough.


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A Jeep just zipped past my house and I could swear I heard the driver yellin:

"The tkob is coming!! The tkob is coming!!"
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post #9 of 9 Old 05-08-2011, 09:07 PM
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Bellowing

Same thing happened to me last week after I installed Riddlers. When I checked to find the leak, it was coming out the front breather and there were NO breather hoses, front or rear. WTF? Guess I'm gonna have to buy some 5/16"(?) hose or maybe an extension kit. Are any of those kits full replacements or do they just extend the factory hoses? Has anyone used "bellows" instead?

BTW, I used 1.5 quarts front and 2.5 rear on Rubicon Dana 44s. After a couple days the front stopped overflowing.
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