Knocking noise from the left rear - JeepForum.com

 
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post #1 of 10 Old 04-25-2010, 12:06 AM Thread Starter
ScotZ
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Knocking noise from the left rear

I have a 2004 GC Overland. I have been getting a knocking or bumping noise from the left rear of the Jeep. When it is up on a rack everything seems ok. What could I have missed? The Jeep has 88K miles on it and drives very straight.


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post #2 of 10 Old 04-26-2010, 03:34 AM Thread Starter
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Bump

At least two-thirds of our miseries spring from human stupidity, human malice and those great motivators and justifiers of malice and stupidity: idealism, dogmatism and proselytizing zeal on behalf of religous or political ideas.
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post #3 of 10 Old 04-26-2010, 10:50 AM
lazebum
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I had a old truck that used to do this and it was rocks in my gas tank. Probally not the same problem but just FYI, children are awsome!!

01 4.0 WJ - Kolak Brake upgrade, Addaco rear sway bar, 3' OME springs, JKS Adj Track Bar, Bilstine Shocks, MOOG Steering Stablizer and TRE's, IRO SYE front kit with a Double Cardan drive shaft, DANA 44a rear swap, booster seat, 7yrold Son, "Don't Tread On Me" Sticker and plates, oh yeah that is how i roll!!
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post #4 of 10 Old 04-26-2010, 11:07 AM
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Do you have factory shocks?

Check the shocks, control arm bolts, and the ball joint.
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post #5 of 10 Old 04-26-2010, 11:12 AM
iluvtruenos
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Well if it drives straight, then a clunking most likely removes the control arms and ball joint from the equation.

Most likely shocks or sway bar links/bushings.

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post #6 of 10 Old 04-26-2010, 07:17 PM
keith20mm
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Quote:
Originally Posted by ScotZ View Post
I have a 2004 GC Overland. I have been getting a knocking or bumping noise from the left rear of the Jeep. When it is up on a rack everything seems ok. What could I have missed? The Jeep has 88K miles on it and drives very straight.
Check the rear control arm mounting to the frame, each side, and the single ball joint over the differential, using a pry bar.
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post #7 of 10 Old 04-26-2010, 07:47 PM
nick62087
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mine drives almost perfectly straight and my ball joint is definitely loose
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post #8 of 10 Old 04-27-2010, 09:24 AM
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I have the same problem on my 03 WJ Limited 4.7 HO with 85k miles. I was getting that bump/thump noise when going over bumps. I was at a loss because I thought I checked everything. A couple weeks ago when I was rotating tires I noticed the ball joint above the rear differential looked like it had some play. I'm guessing that you prolly have the same problem. I haven't tried to fisx it yet but im assuming it would be a project.
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post #9 of 10 Old 04-28-2010, 10:48 PM
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Check the shocks in the rear. Grab the shocks and see if you can move or twist them. Look close at the lower bolts and shock mounts. I had to put stainless steel washers between the shocks and mounts to get rid of the play. It eliminated the clunks. Have you replaced the shocks recently. OEM shocks are wider than aftermarket replacements. Also check the ball joint on top of the pumpkin.
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post #10 of 10 Old 04-30-2010, 03:13 AM Thread Starter
ScotZ
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Thanks for all the suggestions.

At least two-thirds of our miseries spring from human stupidity, human malice and those great motivators and justifiers of malice and stupidity: idealism, dogmatism and proselytizing zeal on behalf of religous or political ideas.
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