BradleyC

Happens when turning. Is very intermittent. Occurs when backing up and moving forward. Cannot replicate by rocking Jeep. Visually checked all suspension components when noise was occurring, haven’t found anything that may be loose. Sound seems to be originating from under the drivers side floorboard. Just above the control arm bolt areas, but it doesn’t seem to be the control arm bolts that is causing the sound.

Video: https://youtu.be/CMT4eqEyl5s

dmwil

I'd first adjust the door latch (the one on the door frame of the body) and tighten up your driver side door a little. I'd also do the rear door, if it is a JKU. Mine made a clunk early on that was cured by doing this. However, I've had a pop in the A-pillar from day 1. I never have been able to figure that one out, so I got used to it.

I'd start with the doors, though. If that doesn't work, then I'd look at the busings on the front lower and upper control arms.

Let us know if you figure it out. Good luck!

Mark Doiron

Bushings are a good idea. Might also check out the axle U-joints. Sometimes where a noise is coming from can be deceiving.

BradleyC

Hey thanks, I’ll definitely give the door a look, but I’m fairly certain it’s something else. I’ll just remove the door and do a test drive to rule that out, haha.

Today I’m going to grease up the boot on the intermediate steering shaft. I found some old(2013) posts about how lack of grease in that boot could cause a similar occurance.

I can also see some wear on my front driveshaft at the rzeppa boot, I’m wondering if maybe that joint has dried out and a new driveshaft is in my future. Will remove and test.

casamtb

I'm going to say the u- joint is starting to fail. Since it was making the noise both when turning the wheel stationary and when moving. And seemed to increase when you were rolling. If you feel a binding or pulsing int he steering wheel when making a turn left turn that would also be a good indicator. Sent from my iPad using JK-Forum

ThatGuyRic

Tighten the track bar on the driver side. Will feel tight but it's not. Usually will "pop" when you turn your wheels all the way left or right when its loose.

jchappies

Check for flashlight rolling around under seat.....don't ask...lol

resharp001

OP was kind enough to link a video. It's definitely not these.

BradleyC

Solved: the noise was my driver side upper control arm! *ugh*

The arm was binding and would only come loose as a specific angle. Took my buddy like 2 mins to figure it out, after I spent 1 night and half a day trying to track it down on my own. We both torqued it down and the Jeep has been riding quietly and smoothly ever since.

I thought for sure that it was something wrong with the driveline. Maybe this will be an example of don’t rush to the most extreme potential cause of an issue. Should have just realized that I changed the control arms a year ago and a bolt may be wiggling loose. Thanks for your help guys.