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Old 08-13-2011, 10:18 AM   #1
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Front end shake

Hi everyone was wondering if I could get some help. Have had my 06 tj for about a year now with about 40k miles on it. For the past month I've noticed when I hit 55 mph my jeep starts to shake in the front. Also when I hit a bump it gets considerably worse. Haven't abused the jeep took it out mudding a few times but nothing serious. Any help would be appreciated. Thanks

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Old 08-13-2011, 10:36 AM   #2
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Have you balanced your tires lately? Also the shaking up front when hitting a bump might be the steering damper. Mine does that and I'm pretty sure its the stock steering damper is shot but not 100% but I am,willing to bet that you need to have the tires rotated and balanced. That solved my wobble at 55mph problem.

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Old 08-13-2011, 10:50 AM   #3
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If you've been out mudding, the first and least expensive thing to do is look underneath, at the inside of the rims for a clump of mud that wasn't cleaned off.

The second would be tire balancing, if no problem with the first check.

After that, you should check out the threads involving "Death Wobble." Doesn't sound like you've reached that point yet, but it won't be long if you're experiencing shaking. Those threads may help head off a more serious problem to come.
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Old 08-13-2011, 01:47 PM   #4
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A speed sensitive shimmy is invariably caused by either the front tires being out of balance, which is the usual cause, or perhaps a bent wheel or mud packed inside the wheel. The first thing I'd do is check for mud in the rear area of the wheels and if there isn't any, have the tires carefully balanced. Not all shops are careful to get tires perfectly balanced, many just balance them to "good enough" which is never good enough.

Next I'd have a helper start your engine and turn your steering wheel back and forth while you do a close and thorough examination of the front-end with the tires sitting on the ground. Look at everything moving for any unwanted side-to-side movement, particularly the ball joints and the passenger-side track bar mount. Rotational movement at the tie rid and drag link is normal but there should be absolutely no side-to-side movement where they are mounted.
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Old 08-13-2011, 01:49 PM   #5
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Get the tires rebalanced.
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Old 08-13-2011, 05:21 PM   #6
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Got my wheels rotated and balanced, mechanic assured me that it needed to be rotated and that it would fix it. It's now twice as bad. It now does it above 55 mph. Any other ideas?
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Old 08-13-2011, 05:46 PM   #7
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Since swapping the tires around changed (made even worse) the sympom, it's clear the problem lies with the tires. If the tires had nothing to do with it, rotating and balancing would not have helped or changed the symptoms.

Sounds like you might have a bad tire or two since the problem existed before and got even worse by moving the rear tires up front.
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Old 08-15-2011, 01:57 PM   #8
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Turns out that two of my lugs on my passenger front tire were stripped out. Fixed that no more shake. Thanks for all the help guys.

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