Question about Cars & Trucks
Rear end has a slight shimmy when driving car.
The only real cause of this that is common is that one or both of the rear tires are suffering from what is called " Tire Cord Separation" this will require the tires be replaced.
Posted on Feb 13, 2012
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Posted on Jan 02, 2017
That's known as negative camber (positive camber would be if the top of the tire were leaning outward). This should be able to be fixed with an alignment as long as the suspension isn't damaged (ie, a bent control arm due to an accident or a hard hit on a curb, pothole, etc).
Posted on Sep 30, 2008
If you are experiencing a "shimmy" that only occurs at a certain speed, I'd suspect a tire balance issue. If it were in the alignment, the problem would manifest itself at all speeds not just at 60 mph. There's a chance that a wheel weight fell off or the tires have uneven wear. If you do have uneven wear on the tires, then you may worn front end parts that need to be dealt with. Incorrect tire pressure can cause uneven wear as well. Hope this helps.
Posted on Nov 02, 2008
It could be an out of balance tire
or it could be a bent wheel.
Rub your hand over the surface of the tire. If it's been out of balance, it will feel out of round and choppy.
When the tire is changed the installer can check the wheel to make sure it's not bent.
If it's been bouncing for a while it can wear out the shock prematurely as well
Start with the tire balance...it may need a new tire to solve the noise and vibrations.
Posted on Jun 21, 2009
By changing the location of a bad tire or wheel you change the way it effects the car. Generally if its in the seat its on the back. if its in the steering its on the front. also a rebalanced tire may be closer but not right
Posted on Sep 17, 2010
SOURCE: front end shimmy @ 65-70 mph
I would look at replacing your ball joints and/or tie rod ends, either can cause those symptoms. The balls joints should be check by a professional.
To check your tie rods jack one front side of your car check it, then do the other;
Move the front wheels. Placing your hands on the tire at the 9 and 3 o'clock positions, move the tire back and forth rapidly. A properly tightened front end will give no signs of excess movement and should give you the feeling of the entire wheel moving back and forth tight to the hub. If there is a movement, ask a friend or partner to ascertain where the movement is coming from. There could be many places that excess movement in a front end could be coming from. The tie rod ends are the easiest to check. Generally, if there is movement in the outer tie rod end, you will see it moving near the ball area where is sits down into the knuckle of the control arm. Excess movement there will require replacement of the outer tie rod. As far as movement on the inner tie rod, place your hand on that while your helper is moving the tire in the same motion described above. Determine how excessive the movement is, if any, for an inner tie rod. Some vehicles will give off a little movement in the rack and pinion. Some vehicles will have what feels like excess movement, but have pitman arms and idler arms that will also need to be checked. Those components should only be allowing side-to-side movement.
Take some time and make sure the lower ball joint is not moving. Place your hands on the tire at 12 and 6 o'clock and try to move it up and down. Many vehicles nowadays have wheel bearing hub assemblies, and there should be absolutely no free-play whatsoever. If there is and the lower ball joint is not moving in the knuckle, chances are there's movement in the bearing. Some rear-wheel-drive vehicles have a bearing seated rotor and this can be adjusted to tighten the looseness in a bearing; however, a little movement in that type of application is generally OK.
Posted on Nov 25, 2011
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