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Unread 05-16-2012, 07:08 PM   #1
jdest001
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1998 XJ Cherokee 
 
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Jeep popping noise (video inside)

I need help diagnosing this popping noise. It only seems to happen when in 4lo and when climbing a steep incline. All u-joints and suspension components seem ok. The Jeep is a 1998 cherokee with a Rusty's 6.5" long arm lift and 33" tires. See video.



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Unread 05-16-2012, 09:19 PM   #2
CJ7-Tim
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Exactly where is the noise coming from ? If it is coming from the center of the Jeep, you probably need a new Transfer Case chain. If you watch, you will see the T-Case jump when the noise happens. You probably can feel it by holding the T-Case shift lever.

If the noise is coming from the front axle, your coil springs are probably binding on the bump stop cups.
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Unread 05-16-2012, 09:23 PM   #3
Savanna
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Mine does the same thing... I always thought I needed to extend my bumpstops
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Unread 05-17-2012, 04:31 AM   #4
jdest001
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Quote:
Originally Posted by CJ7-Tim View Post
Exactly where is the noise coming from ? If it is coming from the center of the Jeep, you probably need a new Transfer Case chain. If you watch, you will see the T-Case jump when the noise happens. You probably can feel it by holding the T-Case shift lever.

If the noise is coming from the front axle, your coil springs are probably binding on the bump stop cups.

Its hard to tell where it is coming from mainly because i cant duplicate the noise regularly, but it does seem to be coming from somewhere in the front.
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Unread 05-17-2012, 09:02 AM   #5
kg4kzv
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Put it in 4lo and give it some gas with you foot hard on the brake and see if it pops then. Be careful doing this and make sure nothing is in front of you because the brakes won't hold you back in 4lo if you hit the gas a little too hard!!!

Chris
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Unread 05-17-2012, 10:13 AM   #6
Elexwiz
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Try going over the same hill in the video in 2wd.
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1987 XJ 4.0 I6, Peugeot tranny, NP231, AA SYE, 8.25" 29 spline, Dana 30 (HP), Rusty’s 4.5 inch coils, BDS 5500 4.5" shocks, 5" junkyard bastard pack, Rusty’s Adj LCAs, RC Quick Discos, JKS BPEs (front and rear), Aussie Lockers (front and rear), Durango steering box, and Removable Doors!
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Unread 05-18-2012, 08:11 PM   #7
Savanna
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I really want to know what this is now...
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Unread 05-18-2012, 08:27 PM   #8
jdest001
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Me too haha. I dont get the noise in 4 low and holding the brake so i don't think it is the transfer case. The more i watch the video it seems to be suspension related, but what in the suspension could make that noise? I can fully flex the suspension without issue, but when it is put under load (when climbing a uneven steep hill) i get the popping.
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Unread 05-18-2012, 08:50 PM   #9
CJ7-Tim
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If the noise is coming from the front axle, your coil springs are probably binding on the bump stop cups.
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