The "brake system" light should turn on for a sec every time you start the
car. Does the "brake system" light turn on every time you hit the brakes?
This supposedly compares the pressure between the front and rear system, and it
alarms the driver if one of the two systems failed. My guess is that there is
air in one of the systems. Get yourself a $5 bleeding kit and bleed
everything. The bleeding kit allows you to do the work yourself without
putting any strain on your MC. Its essentially a check valve (composed of a
little cup that fills w/ fluid).
D^2
Quoting Greg Graham <gregtx@xxxxxxxxxxx>:
>
> Oh great powers that make things stop, I need your wisdom now. Here are
> the
> symptoms with my '67 (naturally, front disks and rear drums). I press
> on
> the stop button and there's quite a bit of pedal travel and a noticable
> hiss
> from the pedal area when I do so. The pedal will go to the floor with
> little effort and the brakes will finally grab, but at a minimal amount.
>
> The pedal is not "hard", it simply goes to the floor. No amount of
> pumping
> the brakes makes any difference at all. The hiss stops as soon as I
> reach
> the floor (only hisses while the pedal is in motion). The "brake
> system"
> light comes on. Once to the floor and the car has stopped, the brakes
> will
> hold it stopped indefinitely as long as I keep my foot on the pedal (no
>
> gradual slip like a bad Master cylinder). What on earth is wrong with
> my
> brakes now?
>
> Here are the things that have been done: The following items have been
>
> replaced: Master Cylinder, all metal brake lines, rear wheel cylinders,
>
> rubber lines up front from the metal line to the brake itself. No leaks
>
> anywhere under the hood and no drips at any of the wheels. No loss of
> brake
> fluid; Master Cylinder stays full. I recently had the brake lines bled
> when
> I purchased new tires, but I am not exactly confident in the quality of
>
> their work. Still air in the lines? Bad Power brake booster? Bad
> "new"
> master cylinder? Can pads or disks or drums be the culprit? What sort
> of
> thing would result in so much pedal travel with so little result in
> braking?
> The Convertible starts every time and rides like a dream... but that
>
> won't do me any good if I can't stop!
>
> Thanks, Greg
>
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