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Unread 12-14-2010, 07:53 AM   #1
Silver yj
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Join Date: Oct 2002
Location: West Virginia
Posts: 574
Chasing noise for a year now.

I have a 2002 TJ with 6 1/2 lift. Quick story to the prob. Last winter I had a truck slide threw an intercetion on ice and I was in 2wd, I hit the gas to get out of the way and spun, yanked the lever into 4x4 while on gas ( yea I know ) and got out of the way before he hit the bank beside me. 2 weeks later my axle backed out on me. Replaced rear axles and bearings. Road test, all good for about an hour and out of know where a loud bearing noise started. Since then I have replaced the trans cause the shifter was shaking and noise is there in 3rd,4th and 5th. Noise still there. Replaced trans case, noise still there. Noise is only there in 3,4,and 5th, all driveline has been replaced except fron rear and u joints. Noise sounds like a loud Pinion bearing and goes away when you let off gas. HELP!!!!!!!!

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Unread 12-14-2010, 07:56 AM   #2
Fropleyqk
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1999 TJ Wrangler 
 
Join Date: Jun 2003
Location: Warner Robins, GA
Posts: 4,472
Have you search for "angry sparrows"? If nothing else, its a good starting point/
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Unread 12-14-2010, 08:00 AM   #3
junkyarddog
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1997 ZJ 
 
Join Date: Sep 2009
Location: iowa
Posts: 56
Pull the rear driveshaft and drive it down the road. If vibration leaves that is your problem. The reason it happens in the higher gears is more rpms on the driveshaft and rearend.
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Unread 12-14-2010, 08:05 AM   #4
mdm
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2000 TJ Wrangler 
 
Join Date: Apr 2005
Location: Elkmont, AL
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Quote:
Originally Posted by Silver yj View Post
...my axle backed out on me...
What does this mean?

Quote:
Originally Posted by Silver yj View Post
...Replaced rear axles and bearings ...
What exactly was replaced? Axle shafts? Both? Wheel bearings, pinion bearing, carrier bearings?

Quote:
Originally Posted by Silver yj View Post
...I have replaced the trans cause the shifter was shaking ...
Did you check the motor/transmission mounts before replacing the transmission? SYE/CV shaft? Pinion angle right? Remove the rear drive shaft, drive in 4wd, and see if the noise is still there.
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Unread 12-14-2010, 01:40 PM   #5
Silver yj
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Join Date: Oct 2002
Location: West Virginia
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Everything is new in the rear. Both axles were replaced when one snapped on me driving down the road a couple days after I dumped it into 4x4. I have driven it with rear shaft out and noise is still there. Im going to pull the front shaft in alittle bit. We have electronic ears at the shop I work at that I have connected to the rear, trans, and t-case and as you drive you have a head set on and click to each hook up and listen for noise. Onlt place the noise comes from is the trans and loud, the trans was the first thing replaced and no change.
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Unread 12-14-2010, 02:36 PM   #6
Silver yj
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Just took front shaft out, noise still there. So it has been driven in 2x4 with front shaft in and out, 4x4 with rear shaft in and out, new trans, new trans case, rebuilt rears. Nothing fixed it.
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Unread 12-14-2010, 02:53 PM   #7
Cavitation
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1999 TJ Wrangler 
 
Join Date: Feb 2010
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Clutch maybe???
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Unread 12-14-2010, 04:04 PM   #8
Silver yj
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Quote:
Originally Posted by Cavitation View Post
Clutch maybe???
Forgot bout that but clutch was replaced as well when I did the trans swap.
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