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Unread 03-04-2013, 06:41 PM   #1
94YjCanz
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1994 YJ Wrangler 
 
Join Date: Sep 2012
Posts: 22
whirring noise when on the gas

i dont know whats going on but everytime im on the gas theres a wierd whirring noise that gets louder the faster i go, but it only makes noise when im on the gas. i dont know what it could be, but it started around the same time that i noticed the passenger rear shaft seal was leaking. i replaced that (headache in itself, it was my first time messing with anything inside the rear diff, so lets just say it took a lot longer than it should have. i had to pull the entire assembly twice.) finally got everything back together and working fine. but still makes noise. not sure what it is.
Please help?

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Unread 03-04-2013, 06:44 PM   #2
jeepyjLeD
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1993 YJ Wrangler 
 
Join Date: Jul 2012
Posts: 40
Does rpm have anything to do with it. If so it might be a bad bearing in the belt loop.
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Unread 03-04-2013, 06:50 PM   #3
94YjCanz
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1994 YJ Wrangler 
 
Join Date: Sep 2012
Posts: 22
not RPMs just speed. like in nuetral, no noise when i get on road it just gets louder the faster i go.
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Unread 03-05-2013, 06:42 AM   #4
jeepyjLeD
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1993 YJ Wrangler 
 
Join Date: Jul 2012
Posts: 40
Can you tell were the noise is coming from. Front,right under you, or rear
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Unread 03-05-2013, 06:46 AM   #5
lakeobum
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1989 YJ Wrangler 
 
Join Date: Nov 2010
Location: clinton, mo
Posts: 88
Check your wheel bearings.
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Unread 03-05-2013, 07:41 AM   #6
Flajeeper1
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1987 YJ Wrangler 
 
Join Date: Oct 2009
Location: Lakeland, FL
Posts: 726
Start by identifying where the noise is coming from. Also check your diff fluid while you're at it.
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Unread 03-05-2013, 07:04 PM   #7
94YjCanz
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1994 YJ Wrangler 
 
Join Date: Sep 2012
Posts: 22
it sounds like its either right under me or just behind me. also, checked and changed wheel bearing and seals in rear (had a wet right side, figured i knock out both while i was in there.) i know diff fluid is where it needs to be. as of right now i have the drive shaft off the back, trying to get the u joints out to change them. still dont know where to take them to get the old ones pressed out. i have a puller and tried using that with absolutley no luck
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Unread 03-05-2013, 07:21 PM   #8
pasinbuy
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1994 YJ Wrangler 
 
Join Date: Feb 2007
Location: florida
Posts: 3,840
If it is just when you press the gas are you hearing the air rush into the intake?

I hear it on my 94.
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Unread 03-05-2013, 07:48 PM   #9
jeepyjLeD
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1993 YJ Wrangler 
 
Join Date: Jul 2012
Posts: 40
Just wondering did you take out the retainer clips. And you can use a hammer and a socket smaller then the eye of the shaft. spray somepb blaster and hit it out just be careful not to bend the eyes.
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Unread 03-05-2013, 07:54 PM   #10
jeepyjLeD
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1993 YJ Wrangler 
 
Join Date: Jul 2012
Posts: 40
For my jeep I had a knocking ,grinding sound from my tcase. It was the chain slapping the side of the case because the chain was warn out. You could try to run the jeep without the rear shaft just to see if its something in the rear axle. I would only do that as a final straw to this problem.
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Unread 03-07-2013, 09:48 AM   #11
94YjCanz
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1994 YJ Wrangler 
 
Join Date: Sep 2012
Posts: 22
Got the u joints changed, no fix. Can't say I'm not surprised. Let me explain the noise a lil different bc I don't think everyone is gettin the full idea. It's kinda like the sound that a train makes on the tracks or how a roller coaster sounds on the first hill, minus the screams or train engine. I've been hoping its not the t-case, but running out of hope. Something that is put under load is rubbing and I'm fresh out of any more thoughts.
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Unread 03-07-2013, 10:41 AM   #12
BGarth13
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1992 YJ Wrangler 
 
Join Date: Nov 2011
Location: Franklin, Wisconsin
Posts: 99
From left field: speedometer cable?
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Unread 03-07-2013, 10:53 AM   #13
94YjCanz
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1994 YJ Wrangler 
 
Join Date: Sep 2012
Posts: 22
Care to explain
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Unread 03-07-2013, 12:02 PM   #14
jeepyjLeD
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1993 YJ Wrangler 
 
Join Date: Jul 2012
Posts: 40
There is no speedo cable on the 94s it electronic still has a gear in the tail housing of the tcase
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Unread 03-08-2013, 03:26 PM   #15
94YjCanz
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1994 YJ Wrangler 
 
Join Date: Sep 2012
Posts: 22
I'm gonna pull the t case and poke around in there for a few, check the chain and such
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