Re: HELP: 93 Toyota Corolla vibration problem!

"HLS" <nospam@[EMAIL PROTECTED]
> wrote in message 
news:_RpMj.8248$V14.7573@[EMAIL PROTECTED]
>
> "Ray O" <rokigawaATtristarassociatesDOTcom> wrote in message
>> Another possibility is that there is rust on the wheel to hub mating 
>> surface and the wheel is not as securely mounted as it appears to be. 
>> The fix is to remove the wheel, clean up the hub and wheel where they 
>> contact, apply a very light coating of anti-seize, and re-install the 
>> wheels.
>>
>> Have the shop or your mechanic measure wheel and tire lateral and
radial 
>> runout to determine which of these is the cause of the vibration.
>> -- 
>>
>
> While everything you say is true, it bothers me a little bit that he can

> stop the
> oscillation by stopping the car and restarting.
>
> OP....Have you rotated your tires recently and, if so, did this make any

> difference??

If the wheel is not properly mounted to the vehicle and the wheel is 
****fting a little, applying the brakes can seat the wheel, and after
driving 
for a distance, the wheel ****fts to where is causes a vibration again. 
Measuring the lateral and radial runout of the wheel and tire separately 
will determine whether the wheel or tire is the cause of the problem. 
Cleaning up the wheel - vehicle mating surfaces will eliminate an
improperly 
mounted wheel as a possible cause.

Besides the wheel, tire, and wheel mounting, there are other possible
causes 
of vehicle vibrations, like a defective tire that has an internal problem 
like a broken belt, CV joints, ball joints, rack ends, out-of-alignment, 
suspension problem, wheel bearings, and a transmission problem.

Taking a systematic approach eliminates the most likely causes of the 
problem and narrows down the possible sources of the vibration.


-- 

Ray O
(correct punctuation to reply)