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Old 01-31-2005, 06:36 PM
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Interesting Vibration Problem

Ok, here is my problem, my daily driver - 2000 s10 extended cab has developed a few problems.

1. At slow speeds, I get a squeak from the rearend somewhere, and its an on and off squeak.

2. At speeds from 15-20 I get a harsh vibration, and I mean, this starts at 15, and the immediately stops at 20mph. I am lost!

I am not sure of what could cause this, I am lost and looking for suggestions. The ujoints are good and the carrier bushing on the driveshaft is in good shape, atleast the rubber is! Any suggestions or previous experiences would be great!

Thank guys!!

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Old 01-31-2005, 06:39 PM
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Better check those u-joints again!!
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Old 01-31-2005, 07:19 PM
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I am positive that it is not the u joints, I am a 250 lb guy and I couldn't budge them! They are not loose a bit, in any direction... no side to side movement, no twist movement, nothing... but wouldn't a u joint cause a more constant vibration???
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Old 01-31-2005, 07:32 PM
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If you have both a squeak and a vibration i guarantee you have a bad ujoint.
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Old 01-31-2005, 08:30 PM
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Ok, I'll check again, but I have never experienced a bad u-joint that vibrates just at a certain speed, both on and off the gas!! It's sooo odd.. I would think that a u-joint would continue to vibrate, can anyone explain this too me?? I was thinking it could be like a bearing in the rearend or something... but I don't know...
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Old 01-31-2005, 08:34 PM
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Three times the charm? Sounds to me like a U-joint as well.

What you have going on, is one or more dry caps starting to seize. Dan
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Old 01-31-2005, 10:20 PM
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Look for a rust color powder around the caps.
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Old 01-31-2005, 10:22 PM
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Axle bearings will squeak when they have gone dry also.
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Old 01-31-2005, 10:33 PM
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But, they usually "rumble" as you are driving.
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Old 02-01-2005, 08:09 AM
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Check for a loose wheel, but I vote for a bad U joint too.
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Old 02-01-2005, 06:16 PM
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Cool

Most of the season'd , older fellows here ( enjenjo , myself) will tell you that U joints can fool you.


They seem fine....... take the drive shaft out and the U-joints are not fine.
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Old 02-01-2005, 07:01 PM
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Should I replace both the yolk u joint and the rear u joint, or just one? Also, should I replace the carrier bearing??
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Old 02-01-2005, 07:09 PM
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It's always recommended to replace things like these all at the same time.
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Old 02-01-2005, 09:33 PM
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Quote:
Originally posted by snod83
Should I replace both the yolk u joint and the rear u joint, or just one? Also, should I replace the carrier bearing??
Check the U-joint at the yoke and the rear U-joint too.


It may be best to replace both at the same time
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