You can check the the ball joints for play with a floor jack. I'd tell you how, but I don't remember. There's a few threads here and on JKJ about checking both.
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| Help diagnose my strange creaking/popping noise... http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=65760 |
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| Author: | dgeist [ Mon Mar 12, 2012 4:24 pm ] |
| Post subject: | Help diagnose my strange creaking/popping noise... |
So, I've been having an odd noise emanating from the KJ for a few weeks now. I'm fairly sure it's from the front end, but it sounds like a combination of other things (and it may BE a combination of things). To start, it's a CRD with 75k and bone stock suspension. The tires are 245/75R16 in case anyone things tire size is a factor. When do I hear it: usually at slow speed and under minor turning; backing out of the driveway; going around a bend in a parking garage; making a turn from a stop sign, etc. What does it sound like: I can describe it as cross between the thunk noise I heard when my engine mount went bad and the squeak of urethane bushings on my integra suspension (in another life). What have I tried: I did the "find a flat spot and drive around in circles" test to see if the CV joints were making the noise. I couldn't get it to happen at ALL on a flat surface going slowly and turning, so I think the CVs are out of the equation (unless it's only when the suspension is slightly compressed, but that'd be really bizzare). So, I'm thinking that the suspension arm mounts or shock bushings are shot and are moving around OR that I have balljoint issues (upper, lower, steering, maybe more than one). Things feel fairly normal at highway speed. There's a little vibration, but nothing more than I would expect from a jeep in need of a tire balancing (which mine likely does). Any thoughts? Dan |
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| Author: | spitfire36o [ Mon Mar 12, 2012 4:45 pm ] |
| Post subject: | Re: Help diagnose my strange creaking/popping noise... |
I just had a very similar issue. The popping noise was a lose lower control arm bolt. With that tightened up, its now a clicking noise. Thats a worn lower control arm bushing. |
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| Author: | HoosierJeeper [ Mon Mar 12, 2012 5:16 pm ] |
| Post subject: | Re: Help diagnose my strange creaking/popping noise... |
You can check the the ball joints for play with a floor jack. I'd tell you how, but I don't remember. There's a few threads here and on JKJ about checking both.
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| Author: | M&P40 [ Sat Mar 17, 2012 2:07 pm ] |
| Post subject: | Re: Help diagnose my strange creaking/popping noise... |
back when i had the popping noise i tightened the bolts on my upper A arms, that was the solution to mine and the symptoms sound the same as you are describing |
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| Author: | JeepinJarhead03 [ Sat Mar 17, 2012 2:30 pm ] |
| Post subject: | Re: Help diagnose my strange creaking/popping noise... |
if it's a steady rotational clicking sound, check the emergency brake shoes while ya checking out stuff |
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| Author: | dgeist [ Sat Mar 17, 2012 4:21 pm ] |
| Post subject: | Re: Help diagnose my strange creaking/popping noise... |
spitfire36o wrote: I just had a very similar issue. The popping noise was a lose lower control arm bolt. With that tightened up, its now a clicking noise. Thats a worn lower control arm bushing. <edit> That's the inner mounting point, right (since the outer is a ball joint)? Are those replaceable? </edit> nevermind: http://www.quadratec.com/products/56015_0111.htm Dan |
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| Author: | Boomerang [ Mon Mar 19, 2012 5:45 pm ] |
| Post subject: | Re: Help diagnose my strange creaking/popping noise... |
i get these noises up front while in 4X4 a little bit, figured they were normal |
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| Author: | dgeist [ Tue Mar 20, 2012 9:35 am ] |
| Post subject: | Re: Help diagnose my strange creaking/popping noise... |
Thanks for the input, all. It's not cyclic (i.e. tied to rotation) and it's both in 2wd and full-time-4 (haven't had it anywhere with the center diff locked, but I imagine I'd hear it then, too...) At this point, I'm confident it's either something in the suspension or possibly one of the enginer mounts, and I'm nearly due for some suspension upgrades anyway, so I figure I need to inspect all the bushings and replace anything questionable. Which have to be pressed out? I'm assuming the innner arm bushings (upper and lower) are a machine-shop deal? Everything else looks to be driveway-swappable: - lower strut mount bushings - sway bar mount and end links - upper and lower balls on the hub carriers (assuming I go aftermarket on upper arms) - Am I missing anything? Dan |
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