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Unread 05-28-2013, 12:12 AM   #1
kgovan32
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loud popping noise from front side xj

I've been having a loud popping noise in the front right and left side whenever i'm braking in reverse, and sometimes normal braking. Doesn't do it while i turn and its more of a noise compared to a bad u-joint. i had a u-joint go out on me before so i know what that feels like but this is totally seperate feeling, i was thinkin blown shock i do have a 3.5" lift and horrible pro comp shocks on it. could that cause the problem?

also i have a really light metal sound coming from front right, sound like a loose cotter pin, could that be the u-joint?

i appreciate the help

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Unread 05-28-2013, 12:17 AM   #2
kgovan32
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also, i replaced LCA's with adjustable ones(Rubicon Express), adj. track bar(RE), ball joints (dana&spicer), hope that helps
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Unread 05-29-2013, 12:04 AM   #3
kgovan32
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also its a 89 xj 4wd solid axles
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Unread 05-29-2013, 05:37 AM   #4
Hudson
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Check your axle side trackbar mount. Make sure the bolt isn't loose and make sure the hole isn't wallowed out.
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Unread 05-29-2013, 11:14 AM   #5
kgovan32
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Quote:
Originally Posted by Hudson View Post
Check your axle side trackbar mount. Make sure the bolt isn't loose and make sure the hole isn't wallowed out.
it was loose but i tightened it and it's still happening, i was doing some research and some said low diff. fluid so ima try that and ill let you guys know. cause i guarantee if it happens to me it's gonna happen to other people hah
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Unread 05-29-2013, 04:25 PM   #6
jcooklock
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I bet that if it was loose that it gonna be wallowed out, especially if you drove with it loose. Did you check that along with tightening it?
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Unread 05-29-2013, 04:39 PM   #7
kgovan32
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Originally Posted by jcooklock View Post
I bet that if it was loose that it gonna be wallowed out, especially if you drove with it loose. Did you check that along with tightening it?
ya i only drove about 7-8 miles with it loose and it was still sharp
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Unread 05-30-2013, 08:44 PM   #8
holysirsalad
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Can you replicate it by turning the wheel by hand with the front end on jack stands? I had a similar noise from the front passenger side, took off my caliper and found one of the bolts had sheared off in the steering knuckle.
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Unread 05-31-2013, 03:36 AM   #9
kgovan32
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Originally Posted by holysirsalad View Post
Can you replicate it by turning the wheel by hand with the front end on jack stands? I had a similar noise from the front passenger side, took off my caliper and found one of the bolts had sheared off in the steering knuckle.
ive tried that, there has to be weight on it
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Unread 05-31-2013, 04:32 AM   #10
billybooster2
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Wheel bearings?
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Unread 05-31-2013, 09:13 AM   #11
Macnasty
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Check the sway bar end links. If they arent loose, look for surface rust around the head of all the suspension fasteners, thats normally a good indication that theres some movement.
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Unread 05-31-2013, 11:08 AM   #12
kgovan32
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Quote:
Originally Posted by billybooster2 View Post
Wheel bearings?
i replaced both wheel hubs
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Unread 05-31-2013, 11:09 AM   #13
kgovan32
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Quote:
Originally Posted by Macnasty View Post
Check the sway bar end links. If they arent loose, look for surface rust around the head of all the suspension fasteners, thats normally a good indication that theres some movement.
i'ma go check em right now and let you know. it sounds like its coming from down low but you never know
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Unread 05-31-2013, 12:38 PM   #14
kgovan32
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Quote:
Originally Posted by Macnasty View Post
Check the sway bar end links. If they arent loose, look for surface rust around the head of all the suspension fasteners, thats normally a good indication that theres some movement.
sway bar is tight and no rust, im honestly at a loss with this and i like to believe im atleast a decent mechanic... ha...
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Unread 05-31-2013, 02:40 PM   #15
Macnasty
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Check the front and rear brakes. I know, you said its coming from the front, but noises can transfer pretty easily and make it sound like its coming from the opposite end. If the brakes dont apply near the top of the brake pedal stroke you may have rear brake issues because the rear adjustment sets the pedal height. If that checks out, my next guess would be the upper control arm bushings. I re-read your post: Make sure the jam nuts on the lower control arms are tight as well
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