Re: HELP: 93 Toyota Corolla vibration problem!

On Apr 18, 2:48=A0am, " krp" <krp24...@[EMAIL PROTECTED]
> wrote:


>
> > Replace both front brake hoses, replace the brake fluid, and bleed the
> > brakes.
>
> =A0 =A0 That may not get the problem. Most tire places use a "static
balan=
ce."
> system.

Which region(s) are you basing this data on?  Static balancing would
yield a satisfactory result for most people most of the time, but what
reputable shop relies on this method anymore?

> Okay for some purposes on newer cars, but this car is 15 years old.
> Wheels on the 93 Toyota were not exactly the strongest.

What exactly is wrong with 93 Corolla wheels?  Do you even know what
their dimensions are?  How many lugs and what's their spacing?  What
changed about this in 1998?

> The wheel needs a
> dynamic balance and CLOSE inspection to see how true it is running. On
the=

> older cars potholes can tend to cause the wheels to become bent.

Yes, newer cars avoid this entirely.

> I'd start there. Also the Corolla of the 90's was famous for bad wheel
bea=
rings.

I'm curious, what specific problems were the "90's Corolla wheel
bearings" famous for?  Would this include, say, a 1999 Corolla?

> We could assume it has disc brakes on the front wheels,

Why assume something (that is groin-poundingly obvious anyway)?
Really?  "Disc brakes" on the front of a 90's rice burner?  Wow, what
will they think of next?!

> A close inspection of
> the spindle and the rotor are next. Not knowing how many miles are on
the
> car (generally we can assume over 100,000)

Of course you can; you prophesied that his car has disc brakes!  Who
would doubt your clairvoyance?

> at this age as a minimum - you
> have all sorts of culprits along the way as possibles. Maybe even
> combinations. That's without getting to any suspension parts. Look at
the
> most likely first.
>
> 1. Bent wheel.
> 2. Bad wheel balance.
> 3. Bad bearing.
> 4. Bad rotor or worn spindle.
> 5. Suspension parts. (there are several high failure parts on the
corolla)=

>
> =A0 =A0 The brake son the Corolla CAN be bad, but have been one of the
mor=
e
> reliable things about Toyota. The only question here is how many times
the=

> rotors were turned and how accurately. MANY brake shops are butchers.
The
> cut rate places often have poorly trained KIDS doing the job. Nobody
shoul=
d
> be surprised when they screw up. If too much is taken off a rotor when
it =
is
> turned, they get sort of square after a while. As the too THINK rotor
heat=
s
> up it tends to go our of round.

After a shotgun rotor replacement the problem still exists.
Hmmmmmmmmm...

> =A0 =A0 Look at the most likely =A0first. Brake lines are down the list
pr=
etty
> far. Since it is only ONE side that seems to be causing the vibration I
> would look for the most likely things first.

Only one side wheel seems to be getting hotter that the rest.  That
doesn't mean the source of the vibration has been isolated to one
side.

> You MAY wind up with a bad
> brake hose, but I'd look elsewhere first. Besides you can't really tell
> about the hose even when you remove it. Not unless it is obviously
> collapsed. Hardening of the brake hose arteries is not impossible, just
> unlikely.

Let's copmpletely discount it then.

> =A0 =A0 You can start to see the problem when you spin up the wheel on
the=
 car.
> Most tire stores will CHECK the wheel balance OFF =A0the car for free.

You have a vast knowledge of what *most* shops will do.

> Especially the store where you bought the tires.

All above advice noted, now direct the OP to a competent mechanic.

Toyota MDT in MO