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Unread 06-07-2012, 07:02 AM   #1
MillerTimeTJ
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1997 TJ Wrangler 
 
Join Date: Apr 2007
Location: Yorktown, VA
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Shimmy/Wobble/Shake help please

i have been a jeep owner for over five years now and the reason i bought my jeep was how good it handled compared to the others i test drove. It always drove straight and smooth down the highway up to about 90MPH (which i dont normally do, but hey, gotta try it out once right)

Specifics of my model are in my sig, but i have a 97 sport, 2.5 inch spacer, 1.25 bl, otherwise mostly stock save for some bumpers etc.

I have developed a shimmy or shake in the front end. it is minor at speeds under 50 but from 50-70 or so it is fairly pronounced. the jeep also shakes a little bit when coming to a stop, regardless of whether i use the tranny to slow down or apply the brakes.

I decided to replace my tie rod ends as there seemed to be a little play, and hoped that would be the issue. Well it isnt. (ps getting the old tie rods off was a *****, had to heat it up)

At any rate, do you guys have any insight, i have read through dozens of threads here but everyone has slightly different problems and no one mentioned a shake when slowing down.

is it possible it is just tires? i have 33" trxus mt's. Three of the four have great tread, one of them scalloped a little bit. Should i balance them and hope that is my problem? alignment? ball joint? wheel bearing? steering dampener? etc. etc. etc

I havent been on here in like two years, but i have always gotten great advice from you all and i appreciate it.

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Unread 06-07-2012, 07:24 AM   #2
texas-hooligan
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It could very well be the tires. I know the tires on my 2003 were pretty cupped when I bought it. I've been slowly going about changing the front end parts (tie-rods, drag link, etc) as most of my components were starting to show their age. I moved the worse tires to the rear of the Jeep but I still get some steering wheel vibes over 40 MPH. Once I get all the bits replaced on the front I'll be getting new tires and an alignment. I don't have any issues currently with Death Wobble but I'm not taking any chances and I'm replacing anything that's worn.

As others will tell you the steering dampener will only mask your problems; fix all the other parts before you worry about the dampener.
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Unread 06-07-2012, 07:49 AM   #3
MillerTimeTJ
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thanks, i think i will try and get them balanced out today although when i replaced the tie rod end i left the lock for my lug on it and drove away with it on. . .
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Unread 06-07-2012, 08:09 AM   #4
MillerTimeTJ
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any other insight
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Unread 06-07-2012, 08:35 AM   #5
Dogman
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Could be the track bar: not torqued down; worn bushing or tie rod end; wallowed out hole. Search for dry steering test. I too have a shimmy and my tires are not good so I can relate.
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Unread 06-07-2012, 04:36 PM   #6
MillerTimeTJ
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I took it to get tires balanced today and they basically said I was sol. He said each tire needed at least 16 oz of weight to balance. He said this isn't unusual with interco tires since they are so heavy.
Is it likely the tires are my problem? Outer tie rod ends are new.
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Unread 06-07-2012, 04:39 PM   #7
NBMgreg
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definitely sounds like a tire balance issue if it's happening at all speeds, and all types of road.

I had my tires rotated on my last oil change which developed a new shimmy, had to take it back and have the tires re-balanced.
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Unread 06-07-2012, 04:48 PM   #8
Dogman
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Sounds like what they told me...
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Unread 06-07-2012, 05:26 PM   #9
MillerTimeTJ
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It happens at most speeds but is worst at highway speed and when slowing down
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Unread 06-07-2012, 05:58 PM   #10
NBMgreg
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sounds like an out of balance tire to me.

if you have any buddies with jeeps swap wheels with them and see if it fixes the issue. If yours cannot be balanced, that is. Or rotate the tires and see if it changes anything.
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Unread 06-07-2012, 06:01 PM   #11
mattlock1983
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Quote:
Originally Posted by MillerTimeTJ
It happens at most speeds but is worst at highway speed and when slowing down
When I had this issue, a wheel rotation solved it.
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Unread 06-08-2012, 09:24 PM   #12
MillerTimeTJ
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I rotated the tires. Improved but not all better. But I think the tires are the issue. Thanks guys
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Unread 06-08-2012, 09:31 PM   #13
1999TJRED85000
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YOU'VE GOT TO READ THIS ENTIRE THREAD.

http://www.jeepforum.com/forum/f9/en...g-read-663777/

I originally found it on another website, but it's on here too. It's very comprehensive and if you follow it, you'll narrow out your problems pretty quick. Very well written.

It has a lot more to do with steering, but all the shimmy and shake stuff it in there too.
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