what would cause tail wag - JeepForum.com

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post #1 of 17 Old 05-10-2013, 10:05 AM Thread Starter
derekmac
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what would cause tail wag

So my WJ like to "wag its tail" when driving if I let off the gas. From what I've read, it seems like it could be the rear LCRs, but just wanted to check with you guys first before I start replacing parts.


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post #2 of 17 Old 05-10-2013, 10:08 AM
js12278
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Could check tires for a twisted belt. Could be control arm bushings.
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post #3 of 17 Old 05-10-2013, 10:11 AM
mikeydmikeyd
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you are correct... i spent a lot of money chasing this issue.... check the oval bushings in the arms for the slightest bit of play while your helper rolls the jeep back and forward with the front tire
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post #4 of 17 Old 05-10-2013, 10:47 AM
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Control arm bushings (Front/Rear) and Rear a-arm busings and joint would be the first place I looked.

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post #5 of 17 Old 05-10-2013, 10:56 AM Thread Starter
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Quote:
Originally Posted by js12278 View Post
Could check tires for a twisted belt. Could be control arm bushings.
It's done this on three different sets of tires/wheels, but good suggestion.

Quote:
Originally Posted by mikeydmikeyd View Post
you are correct... i spent a lot of money chasing this issue.... check the oval bushings in the arms for the slightest bit of play while your helper rolls the jeep back and forward with the front tire
Thanks, I'll give that a shot. I was looking at replacements on RockAuto, and they seem fairly cheap, but the shipping is pretty steep.

Quote:
Originally Posted by 85IrocZ-28 View Post
Control arm bushings (Front/Rear) and Rear a-arm busings and joint would be the first place I looked.
I'll check the a-arm bushings too, thanks!

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post #6 of 17 Old 05-10-2013, 11:04 AM
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If you find the UCA bushings to be bad, replace the UCA and bushings as an assembly and definitely install a new ball joint on top of the diff. No need to have to do it all over again.
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post #7 of 17 Old 05-10-2013, 07:06 PM
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x2 on the rear upper control arm bushings. Tail Wag is the exact way I described it, and new upper control arm bushings (and ball joint while it's out) took care of the issue for me.
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post #8 of 17 Old 05-10-2013, 11:43 PM
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I have the same issue. Step on the gas and the nose goes left, let off and it goes right. Sounds like a new A-arm or at least bushings and ball joint are in order. Maybe I should go with a spacer to match my lift?
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post #9 of 17 Old 05-11-2013, 12:07 PM
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had the exact same issue as upside, Mine needed LCA's replaced as the oval bushings where shot and actually sliding on the sleeve that the bolt goes through
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post #10 of 17 Old 05-13-2013, 04:36 AM Thread Starter
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I ordered LCA's through RockAuto. I can't wait to get rid of this bloody tail wag!

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post #11 of 17 Old 05-31-2013, 04:38 AM Thread Starter
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I changed the LCA's a couple of days ago, and no more tail wag!

That's the drivers side, and the passanger side was even worse!

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post #12 of 17 Old 06-04-2013, 09:50 PM
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Looks like I need to get under the Jeep and pry side to side to see if the sleeves are detached from the rubber.
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post #13 of 17 Old 06-07-2013, 02:30 PM
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Im having the same issue. I have new a-rm bushings (Dorman), new ball joint and new LCA (Crown).

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post #14 of 17 Old 06-07-2013, 10:12 PM
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Are all those parts installed already and you continue to have the wag? If so, check the lower control arms. Look at worn bushings as well. Use a pry bar and see if the rubber in the bushing is torn or disconnected from the bolt sleeve.
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post #15 of 17 Old 06-08-2013, 01:27 PM
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Quote:
Originally Posted by js12278 View Post
Are all those parts installed already and you continue to have the wag? If so, check the lower control arms. Look at worn bushings as well. Use a pry bar and see if the rubber in the bushing is torn or disconnected from the bolt sleeve.
Yes, all are only 2-3 months old. I'll check them out. I may order some LCA from IRO with Clevite bushings to get rid of those silly oval bushings. It's very frustrating.

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