<VV> brake probem?

[Ramon Rodriguez III]

Frank, thanks for the test procedure.  At first I thought I felt the pedal
drop an almost imperceptible amount but after 5 minutes of holding my foot
on the brake (more firmly as time went by) I decided it was my imagination.

Any other advice on this?  Brakes problems aren't something to take lightly
but this is a phantom problem.  Missy is one of those people who do not
have any feel whatsoever for mechanical things, I'm not 100% sure the
problem even exists.  Maybe in driving a little tired at night she just had
her foot kinda slip off the pedal or something.  She has complained a few
times in the past two years that the pedal felt squishy once in a while but
I've been driving the car more than she has and I've never felt anything
odd at all.

Ray R.

On Tue, May 29, 2012 at 12:19 AM, Frank DuVal <corvairduval at cox.net> wrote:

> Try this:
>
> Lightly press on the brake pedal. Just sort of rest your foot on it. As
> if you might be slowing down waaayyy in advance of needing to actually
> apply the brake.
>
> If the pedal starts to go down, the MC is bad. It is internally bypassing.
>
> If you press on the brake, it seems fine. At least it will for a while....
>
> When the MC gets so bad you have to continually reapply your foot to the
> pedal, it is waaay past time to replace it.
>
> BTW, both single and dual master cylinders exhibit this problem.
>
> Frank DuVal
>
>