shimmy on the highway

[matt thalken]

I've got a shimmmy that is prevalant from 45mph+ it gets worse the faster i go, wheel bearings are fine, alignment is freshly done and well within spec... its noticeable in the steering wheel and occasionally the brake pedal, the brakes are also fine. Anyone seen this before?

 

[EddieS'04]

Possible tire belt seperation, causing tread run out...

 

[matt thalken]

brand new tires yesterday, i watched them balance each wheel too, they're fine

 

[EddieS'04]

I have had tread run out on new tires..get them to spin it on the balancer, with the cover up and watch the tread...

 

[matt thalken]

the tires are fine, it did it with the old tires before yesterday too.

 

[EddieS'04]

Did they inspect the inner and outer tie rod end thourly and the wear in the rack and pinion unit...

 

[matt thalken]

no, i really doubt it, thats what i was kind of thinking, i'll have to dig in tomorrow

 

[Don DeShasier]

There is one more thing to inspect. When my bushings started to wear i got a shimmy. everything checked ok on the alignment rack but when we drove it it would vibrated in the steering wheel. Good luck with your search.

 

[matt thalken]

what bushings? the sway bar bushings?

 

[Tim Turner]

I'm leaning more towards the driveshaft. I bet that's your culprit.

 

[Richard L]

Shimmy at highway speeds is caused by Wheel/s imbalance 99% of the time.



...Rich

 

[EddieS'04]

Every vehicle I have had that shimied from 45mph up, was always the tie rod ends or tread runout..just my 40yrs of experiance....