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Unread 01-04-2016, 02:02 PM   #1
Jmm20010
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2007 JK Wrangler 
 
Join Date: Nov 2015
Location: Woodbirdge, Virginia
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Rear End Squeak/Chirp

Hey guys,
I have a 2007 JK with a lift and 35s. Recently I have noticed an embarrassing squeak or chirp coming from the rear end more-so the right then left side. It mainly happens when the vehicle goes up or side to side, I can press the rear end down and hear nothing but when I let go it squeaks on the way up. Sound appears to be coming from the top of the shock area.

Thanks

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Unread 01-04-2016, 06:47 PM   #2
cyberpyrot
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2012 JK Wrangler 
 
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It's your spare tire. How much did you eat during the holidays?
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Unread 01-04-2016, 08:38 PM   #3
Jmm20010
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I am 99% sure it's not the spare as that's back mounted. I am pretty sure its the shocks in some way but I was just wondering if anybody has had this issue because I had it happen on a lifted 2005 Tacoma back in 08 except water seemed to make that one better. I have been PB Blasting the heck out the shocks though.
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Unread 01-04-2016, 09:15 PM   #4
JohnRodriguez
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if you have heim joints on the sway bar links, than that is what is causing the noise. i'll hit mine with some silicone spray when it does it.
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Unread 01-04-2016, 09:32 PM   #5
Prot
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If you have aftermarket control arms or other aftermarket suspension and steering components, break out the grease gun and give everything a few pumps.
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Unread 01-04-2016, 09:48 PM   #6
Neo1130
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2015 JK Wrangler 
 
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My shocks were making a similar sound on my 2009 when I bought it. They thought something was wrong with the Jeep and couldn't diagnose it so I got almost $5k off of blue book because of this... It was the shock bolts were loose and the metal bushings inside the shock mounts were rubbing inside the mounts on the axle making the squeak. That or sway bar bushings is my bet....
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Unread 01-05-2016, 10:38 AM   #7
JeepCares
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Quote:
Originally Posted by Jmm20010 View Post
Hey guys,
I have a 2007 JK with a lift and 35s. Recently I have noticed an embarrassing squeak or chirp coming from the rear end more-so the right then left side. It mainly happens when the vehicle goes up or side to side, I can press the rear end down and hear nothing but when I let go it squeaks on the way up. Sound appears to be coming from the top of the shock area.

Thanks
Hey Jmm20010,

TSB 03-003-07 may relate to your vehicle:

SUBJECT:
Squeal-Like Sound From Front Axle Pinion Gear Flange And Seal
OVERVIEW:
This bulletin involves the replacement of the front axle pinion gear flange slinger and seal.
MODELS:
2007 (JK) Wrangler
SYMPTOM/CONDITION:
The customer may experience a squeal-like sound from the front axle. The sound will
increase or decrease with vehicle speed. The sound may be more noticeable at low
vehicle and engine speeds. This condition may be due to an interference between the front
axle pinion gear seal and the pinion gear flange oil slinger.
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Unread 01-05-2016, 01:22 PM   #8
jwmbishop
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Quote:
Originally Posted by Jmm20010 View Post
I have been PB Blasting the heck out the shocks though.
Not a good move - PB is a primarily a penetrant - not a lubricant alone - and will penetrate into the rubber bushings, softening them and severely shortening their life expectancy...
The easy ones - Check all bushings for signs of wear - sway bar links and mounts, shock ends, control arm mounts.
A bit harder - check the spring isolators - the hard poly "spacer" on the top of the spring. Yes I know it usually protests in both directions - but can also only protest when the spring is releasing energy rather than storing...
The shocks themselves could be a source - disconnect them at bottom and check if sound goes away. Check brake line mounts, vent hose mountings and park brake cable for rubs.
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