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Steering vibration at 80mph

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Old May 25, 2011 | 11:25 AM
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Default Steering vibration at 80mph

I'm getting steering vibrations @ 80ish mph.
Suspension and steering are all new (VBP monoleaf and rack attack).
Alignment was done a few weeks ago and I was under the front end last weekend, all the kibbles and bits are snug.

Leads me to believe there is a wheel out of balance, but I didn't have any such vibrations last summer.

Any other thoughts as to what it could be?
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Old May 25, 2011 | 11:37 AM
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How old are your tires? Could be a symptom of ply separation. Tire tread that is just starting to separate from the tire carcass may only show up at high speeds.

Jim
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Old May 25, 2011 | 11:46 AM
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Unknown, came with the car when I bought it in '09
Is there a way to tell, or do I need to take it to a tire shop?
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Old May 25, 2011 | 01:18 PM
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Tire shop will be the easiest but you could start swapping tires until you find the culprit.
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Old May 25, 2011 | 01:30 PM
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Tires are dated. Find the DOT block and look for the date code.

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Old May 25, 2011 | 01:56 PM
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I wonder if DOT codes appear in Canada, I'll have a look after work
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Old May 25, 2011 | 02:33 PM
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wheel bearings....are a possibility
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Old May 25, 2011 | 02:35 PM
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Originally Posted by bobs77vet
wheel bearings....are a possibility
And with sidepipes, I'm guessing I won't hear the droning noise they normally make eh?
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Old May 25, 2011 | 02:37 PM
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Originally Posted by Jim Shea
How old are your tires? Could be a symptom of ply separation. Tire tread that is just starting to separate from the tire carcass may only show up at high speeds.

Jim


If you don't find the DOT week/year stamp on the outside of the tire that means that its on the inside....and that means pre-2000 ! Just replaced my tires which looked brand new but turned out to be 12 years old....HUGE difference in ride and handling as well as safety factor !......lots of posts on tires in the Forum. Most tire guys will tell you 5-6 years max life no matter what the mileage is on them....( I was shocked as well when I did my research !)

Mark
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Old May 25, 2011 | 04:40 PM
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I experienced the same thing (old tires)..... Put on new and the problem was gone.
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Old May 26, 2011 | 07:49 PM
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c284100
41st week, 2000?
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Old Aug 16, 2011 | 09:57 PM
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update:

New tires and the vibration is gone.
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Old Aug 16, 2011 | 11:22 PM
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Originally Posted by moonsteel
I'm getting steering vibrations @ 80ish mph.
Suspension and steering are all new (VBP monoleaf and rack attack).
Alignment was done a few weeks ago and I was under the front end last weekend, all the kibbles and bits are snug.

Leads me to believe there is a wheel out of balance, but I didn't have any such vibrations last summer.

Any other thoughts as to what it could be?
try 100ish maybe it'll smooth out.
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Old Aug 16, 2011 | 11:54 PM
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Glad the tires solved it. Had same problem with front tires back in 2005. Replaced them along with all 4 new shocks (KYBs). Old ones (now those are getting old and I've barely driven the car in... six years.... my rear tires are about 2000 vintage) had cupping/feathering on the tread. Smooth as silk right up to 120+ now

Now that I'm working, I should see about replacing the rear tires with a fresh pair at least (rotate the 2005 vintage tires, front to rear at the same time)
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Old Aug 18, 2011 | 03:08 AM
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No problem. Just follow the speed limit.
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