I've had the same thing for years. Replaced EVERYTHING but the booster and
the flex lines. No help. They never feel as firm as my wife's old '86.

On Wed, Sep 23, 2009 at 1:58 PM, Mike Riley <mkriley@fuse.net> wrote:

> I have a problem with the brake pedal  travel, it seems to go about  3
> inches then hit something mechanical and stop. problem does not happen with
> engine off, pedal stays high enough to not hit the obstruction. previous
> owner replaced master cylinder to no avail. anybody seen this before.
> 84 auto.
> thanks
> mike
>