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Old 11-13-2008, 01:46 AM   #1
sl2gold
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Default A slightly different vibration question

I've got this slight shimmy with a slight bounce in the front from 60-65 mph that disappears again after about 70 mph, I've repalced the rotors, had Les Schwab do a wheel alignment and check the front end, the tires have been balanced over and over again and I even swapped the front wheels to the back but I can't figure it out. I think they may have checked for bent rims but I don't remember. Anyway, I'm at my wits end. My question is, besides what could be causing this, if I lower the car later, will it get worse ?

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Old 11-13-2008, 11:27 AM   #2
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Default Re: A slightly different vibration question

Check the tires and see if there is an uneven tread wear on them. Check the wheel bearings and check the control arm bushings. Also check your sway bar links.

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Old 11-14-2008, 01:06 AM   #3
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Default Re: A slightly different vibration question

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Check the tires and see if there is an uneven tread wear on them. Check the wheel bearings and check the control arm bushings. Also check your sway bar links.

Okay, I'll need to get those checked, but as far as lowering the car, will it get any worse if I can't find the source of the vibration ??

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Old 11-14-2008, 08:36 AM   #4
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Default Re: A slightly different vibration question

I'm sure if you have all those checked you will find it. I cannot really imagine lowering it would make it worse, maybe more noticable.

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Old 11-14-2008, 08:43 AM   #5
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Default Re: A slightly different vibration question

wheel bearing or bent half shaft?

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Old 11-14-2008, 08:45 AM   #6
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Default Re: A slightly different vibration question

check tie rods for the hell of it, but I would be willing to bet its the wheel bearing.

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Old 11-16-2008, 03:20 AM   #7
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Default Re: A slightly different vibration question

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check tie rods for the hell of it, but I would be willing to bet its the wheel bearing.
So the wheel bearing could be causing the slight bounce as well as the wobble and could it cause it do to do it only at certain speeds ??

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Old 11-17-2008, 01:30 AM   #8
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Default Re: A slightly different vibration question

When you feel this bounce or shimmy if you let off the gas does it go away? I am trying to rule out the CV shaft. If you have a standard you can just disengage the clutch. On an auto, shift into neutral.

Here is how to check out the front suspension components. Jack up the front wheels. Grab the top and bottom of the wheel and gently rock it top to bottom. If you feel play it is either the lower ball joint or the wheel bearing. Next, grab the two sides and gently rock it back and forth. If you feel play the tie rod is likely bad. When you do it side to side don't mistake moving the wheel so much that you are actually moving the steering wheel for a bad tie rod end. When I do this I look at the steering wheel to make sure I'm not moving it.

Because of the way the Saturn's are built, it is difficult to feel the play in the ball joint because of how the sway bar goes though it and pushes it up. They are pretty easy to replace so if I suspect they are bad I just replace them. If the rubber is torn then I would just go ahead and replace them. You're going to have to do it anyway.

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Old 11-17-2008, 02:00 AM   #9
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Default Re: A slightly different vibration question

[QUOTE=Canyon;1349228]When you feel this bounce or shimmy if you let off the gas does it go away? I am trying to rule out the CV shaft.

'
It only shimmies/bounces when Im on the freeway at about 60-65 mph, when it gets to 70 it seems to smooth out. I'm pretty sure it'll vibrate at that speed whether I'm on the gas or not.

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Old 11-17-2008, 08:57 AM   #10
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Default Re: A slightly different vibration question

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It only shimmies/bounces when Im on the freeway at about 60-65 mph, when it gets to 70 it seems to smooth out. I'm pretty sure it'll vibrate at that speed whether I'm on the gas or not.
I would check to make sure the tires are not more worn on the inside than out. That would cause you to only feel it at certain speeds.

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