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Unread 11-03-2014, 09:33 PM   #1
Pike80
Registered User
2001 TJ Wrangler 
 
Join Date: Sep 2014
Location: , Massachusetts
Posts: 11
Jeep Noise Diagnosis with Video!

Hello All,
I need help pin pointing this noise.
The jeep is a 2001 TJ with 157,000 miles. 4.0 I-6 engine. 5 speed NV3550 tranny, NV231 transfer case.

https://www.youtube.com/watch?v=J_sm...ature=youtu.be

Best example of the noise is at 1:07-1:19 and 1:24- 1:45.

The noise is heard when the clutch is depressed and when the clutch is released. The sound seems to go away after about 10-15 minutes of driving. It is best described as a whining/screeching/hissing belt or pulley noise, yet it SEEMS to be coming from the the transmission bell housing. Initial thought are the throw out bearing, but need help with diagnosis. Thanks for checking it out!



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Unread 11-04-2014, 08:06 AM   #2
Jeepsr4me
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Join Date: Dec 2004
Posts: 5,131
Sounds like a TOB... Good time to do a clutch, TOB and Pilot bearing
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Unread 11-04-2014, 05:48 PM   #3
Pike80
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2001 TJ Wrangler 
 
Join Date: Sep 2014
Location: , Massachusetts
Posts: 11
Thank you for the input. Is it normal for a throw out bear that is going bad to make noise when the clutch is in AND out? Also, is it normal for a failing TOB to quiet down after drive around for awhile?
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Unread 11-04-2014, 08:04 PM   #4
97lon
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1997 TJ Wrangler 
 
Join Date: Nov 2011
Location: Louisville, Ky
Posts: 276
Interested in this, my 97 is making same noise. Going on a 2 hour drive for deer hunting this weekend and need my jeep!
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Unread 11-05-2014, 07:40 PM   #5
Pike80
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2001 TJ Wrangler 
 
Join Date: Sep 2014
Location: , Massachusetts
Posts: 11
TTT. Can anyone else weigh in on this? In the last couple weeks I did just finish installing a body light, motor mount lift, welding in Safe-T-caps, POR-15'ing the frame, installed OME lift and put on new tires and tailgate, I guess I could add the T.O.B. and new clutch to the list if that is truly what's wrong.
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