On Thu, 13 Mar 2008 00:54:43 -0500, "Ray O"
<rokigawaATtristarassociatesDOTcom> wrote:
>
>"Steve K" <steve_k2@[EMAIL PROTECTED]
> wrote in message
>news:ku0gt3t50og5tgifhp24a7u5lrd8s3gb5d@[EMAIL PROTECTED]
>>I had some extensive (and expensive!) work done on my 2001 RX300
>> recently. I had a rebuilt transmission installed, and the timing belt
>> replaced at the same time. A Toyota dealer did the work. Since then,
>> there is a vibration in the front end that can be felt through the
>> steering wheel and through my feet on the floor at speeds over 50 mph.
>> After about 5 minutes on the road however, the vibration goes away. I
>> rotated the tires, but that had no effect. I've never seen a
>> vibration problem that goes away when the car warms up. Are there any
>> Lexus or Toyota techs out there who have come across this?
>
>Noises and vibrations are difficult to diagnose without experiencing them
>first hand. Vibrations at higher speeds are generally caused by tire
>problems, and they can go away if there is moisture in the tires that
melts
>as the tires warm up or if there is a flat spot in one or more of the
tires.
>It is also possible that there is a problem in the transmission or a
binding
>driveshaft or axle shaft that loosens up as it warms up.
The symptoms described were not uncommon 20 years ago using tires
constructed with nylon cords, when the temperature was cold. Nylon
tires flatspotted when parked, and the flat spot would disappear after
the tires warmed up with driving.
Less likely today, as nylon is not used very much as a cord material,
unless it is a very cxheap tire brand (steel and kevlar are much moere
common now, especially in high performance tires.
What did your Toyota dealer say when you re****ted the vibration?
--
Jay (remove dashes for legal email address)
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