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Unread 12-22-2010, 08:54 PM   #1
xxxxxxxxdjm1TJ17
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2006 TJ Wrangler 
 
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speeds of 65+ my jeep vibrates back and forth

title pretty much says it all if im on the highway and im goin over 65 my jeep will start to shake back and forth. i have no clue wat it is someone said maybe it was the tire pressure. any ideas? it never did this a while ago and i cant remember wen it started doing it

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Unread 12-22-2010, 09:09 PM   #2
elsapo
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Tires. Put in new tires/alignment/balance. I have all my tires at 44PSI
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Unread 12-22-2010, 09:13 PM   #3
xxxxxxxxdjm1TJ17
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i just got brand new km2's. had an allignment today.
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Unread 12-22-2010, 09:19 PM   #4
jhf56
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2003 TJ Wrangler 
 
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when i first lifted my jeep i had the same problem, then i added a stabilizer and rotated the tires now i dont get any ibes at all.
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Unread 12-22-2010, 09:23 PM   #5
xxxxxxxxdjm1TJ17
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ya maybe. im thinkin my tires might have uneven air pressure. idk i thought it was my bent control arm after i changed it it still did it.. deffinately not as bad tho
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Unread 12-22-2010, 09:30 PM   #6
Dogzilla
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Crappy tires....They're not round.
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Unread 12-22-2010, 09:36 PM   #7
xxxxxxxxdjm1TJ17
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u really think it because of the tires? they r litterally brand new though. will they break in atleast? u think itll go away
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Unread 12-22-2010, 09:40 PM   #8
autopc25
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Are you sure the suspension is all tight and OK? It's possible the tires are not balanced even if you just got new tires. I would have them re-balance the tires and go from there. I got new tires a few months ago and the new tires vibrated more then the old tires at first. They re-balanced the tires on a different machine and found the tires to be off by .25 - 1.0 ounce. Smooth as silk after re-balancing. The balancing machine was not calibrated correctly.
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Unread 12-22-2010, 09:42 PM   #9
xxxxxxxxdjm1TJ17
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yea. it actually did happen the day the tires were put on.. i also got in a car accident not to long ago it could of loosened some things up and made it worse?
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Unread 12-22-2010, 09:43 PM   #10
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after the accident my steering wheel was turned to the left and stayed that way. its fixed now but u think it could be somethin to do with that?
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Unread 12-22-2010, 09:45 PM   #11
jorp
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do an alignment and change your balljoints, tie rod ends etc.
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Unread 12-22-2010, 09:50 PM   #12
jeepwrangler97
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Quote:
Originally Posted by elsapo View Post
Tires. Put in new tires/alignment/balance. I have all my tires at 44PSI
I think 44psi is too high, I don't know what size tires your running, but that still sound pretty high, I run my 31" km2's at 28psi and that seams to get me even wear.

to the op: make sure nothing is bent or loose, I would even re torque all susp. and steering components to spec and make sure alignment and tires are all balanced and right. Could the front wheel have been bent at all, or dented in the crash, or maybe you threw a weight.

Good luck, I am currently dealing with some vibration similar to what it sounds like you have and new tires
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Unread 12-22-2010, 09:54 PM   #13
EvilMonkey
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Quote:
Originally Posted by jorp View Post
do an alignment and change your balljoints, tie rod ends etc.


What's wrong with his alignment, ball joints and TREs? Figure out the problem before you just start fixing things.

OP,

Go back to the shop like others have mentioned and ask them to re-balance. Could be the tire balance or it could be out of round. I just had a tire replaced on my T4R that was brand new and out of round.
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Unread 12-22-2010, 10:00 PM   #14
Gofaster
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Quote:
Originally Posted by jorp View Post
do an alignment and change your balljoints, tie rod ends etc.
I agree. I had a '96 Cherokee, 95K miles, no accident and it started to shake like crazy. I paid a lot of money for the tie rod and bushings at a shop and still had issues. After replacing all that and I still had issues, I got tired of feeding that mechanics family. I found a local Jeeper that had access to a garage and he replaced the ball joints for a 1/4 of the price the shop wanted. Problem fixed. May not be your issue but look there.
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Unread 12-22-2010, 10:02 PM   #15
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maybe theres a possibility my rim is warped? idk it could be a number of things now that i think of it. i might just have a shop look at it because it is terrible on the highway it used to have a really smooth ride at 90 + not that i drive that fast in it and before i got the throttle body spacer it only went 85 lol
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