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Old 09-19-2012, 11:48 PM   #1
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Default The weirdest shudder

When turning right at low speeds, I get a shudder which i can hear and feel through the steering wheel, definitely the drivers side. 2000 Bonn SLE

Things I have checked: Wheel bearing, ball joint, Outer tie rod, swapped wheels.

That leaves me with the strut mount, inner tie rod, steering related things, maybe CV shaft, bad steering knuckle?

I just replaced the wheel bearing, as it was bad, which helped, but still. I had the acc. belt off recently, and all the pulleys turn easily, save the power steering pump which is really sluggish....

Its not a big issue, but I would really like to figure it out. Thanks.
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Old 09-20-2012, 12:06 AM   #2
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Oops, forgot that i have not checked the control arm or bushings.
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Old 09-20-2012, 09:50 AM   #3
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Does it sound like a scraping noise when you turn right at slow speeds? Like in a parking lot. Almost like a brake pad rubbing on a high spot on the rotor?
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Old 09-20-2012, 10:41 AM   #4
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Thanks for the post. It actually has no grinding noise, only something closer to hopping/shudder.
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Old 09-20-2012, 11:37 AM   #5
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Have you removed the front left tire and examined the wheel housing for any signs of rubbing?
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Old 09-21-2012, 08:32 PM   #6
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I would suspect the inner CV joint. Axles are so cheap now I'd start there.
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Old 09-21-2012, 09:54 PM   #7
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Jack it up, and give the wheel a tug back and forth at the 3-9 o'clock positions, listen for a noise to come from where the inner tie rod connects to the rack.
Warped rotors, or seized caliper pins can also cause similar issues like you are having, but those normally happen when braking at higher speeds, or after they heat up..

Did you have an alignment done after replacing the outer tie rods?

If you want to look over the GM Tech - Vibration and Shudder Diagnosis info then search google for Vibration Diagnosis and Correction, I'd copy the info and post it here, but there'* a few posts worth if info.
The info is on two different sites, so it should not be too hard to find.

I'll contact the guy that shared the info on both sites, and see if he minds me using the info here, if he doesn't mind then I'll see about getting the info posted in a thread on this site, as it is pretty thorough and helpful.
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Old 09-21-2012, 10:00 PM   #8
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Another thing that may help, this YouTube video, it is mainly for early 90'* Buick Roadmaster, but a good bit of the info is what is in the Vibration Diagnosis and Correction info I was talking about above.

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Old 11-11-2012, 01:31 PM   #9
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Its been a while. Heres an update. For different reasons, i replaced the opposite strut mount. The sound is now basically gone; I think the extra effotr to turn the wheel was causing some shuddering as the strut bearing hopped. I think we are good to go, but as with steering, there is more than meets the eye.

Thanks again.
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Old 11-11-2012, 11:15 PM   #10
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Quote:
Originally Posted by bonn2k View Post
Its been a while. Heres an update. For different reasons, i replaced the opposite strut mount. The sound is now basically gone; I think the extra effotr to turn the wheel was causing some shuddering as the strut bearing hopped. I think we are good to go, but as with steering, there is more than meets the eye.

Thanks again.


Glad to hear you were able to find the problem, and thanks for letting us know what you found the problem to be, hope that the problem does not come back, if it does let us know.
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