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Unread 04-16-2012, 11:41 AM   #1
Dluenz
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1993 YJ Wrangler 
 
Join Date: Dec 2011
Location: Sheboygan, WI
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Right Rear Noise

I was beating the crap out of my 1993 zj and I hit the gas hard around a turn and I heard a POP. Now when I am turning or accelerating I hear the same pop. It almost sounds like its under the seat in the back (but its under my jeep). Any ideas?! Thanks!!!!

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Unread 04-16-2012, 12:20 PM   #2
JasonStebbins
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1997 ZJ 
 
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If you hear it under the back seat, I would start by checking the rear drive shaft u-joints and transmission mount. Then rear upper control arms. Then rear sway bar links. Then rear sway bar bushings. In that order.
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Unread 04-18-2012, 06:48 AM   #3
Dluenz
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It randomly went away, so that's good I guess?
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1996 ZJ 5.2 np-249 DD. Skids.
1993 YJ 4.0 32RH auto. NP-231. Zone Offroad 2" lift. Skids. Cragar D Windows. 31s. Rugged Ridge 8500lb winch. Bushwacker Cut Outs. Cut and rebuilt most of the frame.
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Unread 04-18-2012, 09:21 AM   #4
gabrod72
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Quote:
Originally Posted by Dluenz View Post
It randomly went away, so that's good I guess?
Yes and no. It will probably come back soon enough. You need to trouble-shoot to find out what's wrong. The sound you are hearing will probably come back if you put stress on your rear suspension components (if that's what is causing it.) You can start trying to isolate your issue by finding some sloped surface and creeping onto it and off of it with the rear end. Drive slowly to see if you can hear the pop. If you can, then get a friend out there to look underneath the vehicle while you do this... obviously, don't let your friend actually get under the vehicle to inspect unless you know exactly what you are doing. I've been under one or two vehicles inspecting to help out my friends but I really, really trust their ability to avoid running over my arse!
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Unread 04-18-2012, 11:04 AM   #5
Dluenz
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Yeah I just beat on it a bit and it's completely gone. I just had new bushings out on by control arms, maybe they were getting situated?
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1996 ZJ 5.2 np-249 DD. Skids.
1993 YJ 4.0 32RH auto. NP-231. Zone Offroad 2" lift. Skids. Cragar D Windows. 31s. Rugged Ridge 8500lb winch. Bushwacker Cut Outs. Cut and rebuilt most of the frame.
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Unread 04-18-2012, 11:18 AM   #6
gabrod72
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Did you grease them? They'll squeal a bit if you don't but I'm not sure about popping. Try seeing if you can re-produce the popping sound, then loosen them and get some grease in there. Finally, tighten them with the vehicle sitting on it's own weight and try to reproduce the popping sound.
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Unread 04-18-2012, 11:25 AM   #7
Dluenz
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alright. Thanks for the help!
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Unread 04-20-2012, 11:28 AM   #8
Dluenz
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yeah its back, yay somethines wrong haha
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Unread 04-20-2012, 11:35 AM   #9
gabrod72
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Get someone to look underneath while you're power breaking... basically find a way to reproduce the sound under stress while not rolling if possible. Get a friend to look at it from the side while he's laying down and perhaps you can pinpoint your problem. If it started happening after your BB, then inspect your axles and linkages for any paint scrapes since this could be the evidence you are looking for.
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Unread 04-23-2012, 11:46 AM   #10
Dluenz
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I dont have my BB on yet, I was hoping to do that soon but now im worried about this, it seems like it happens when the vehicle is wet?
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