Re: HELP: 93 Toyota Corolla vibration problem!

<jonb55198@[EMAIL PROTECTED]
> wrote:
>NEW SYMPTOMS:
>
>I had the tires changed out for brand new Yokoham Avid TRZ.  they were
>under warranty so it didn't cost me anything.  However, the vibration
>still persisted.  The new additional symptoms are as follows:
>
>1. when the vibration occurs, you can get out of the car and feel the
>temperature of the steel wheels.  The Passenger Front wheel is hot to
>the touch and will burn you.  the rest are cool to the touch.

Sounds like a brake problem.

>2. the brake pedal has less travel and feels stiffer.

Sounds like a brake problem.

>3. more gas pedal effort and reduced gas mileage during periods of
>vibration.

>4. this problem will start randomly and is not dependent on if you are
>using the brakes.  I was on the highway at 1AM and didn't use the
>brakes for 30 miles and it still started.

Does lightly tapping on the brakes stop it?

>Now here is what I think, although i'm not a mechanic... I think it
>has something to do with the front passenger-side caliper.  It may be
>locking up somehow.  But i noticed on local roads before the vibration
>starts, if the pedal is stiff, pump it a few times and it goes away...
>ie the brakes unlock.  The weird thing is I put brand new calipers in
>there 3k miles ago.... could one be defective?

That sure sounds like it.
--scott

-- 
"C'est un Nagra.  C'est suisse, et tres, tres precis."