I just replaced the booster on my 73 Imp with a rebuilt unit. My pedal was very hard and I could hear a slight hissing from under the dash. I believe a bleed problem like air in the lines would cause the pedal to be mushy as would a bad master cylinder, wheel cylinder and busted brake line. If one of your lines is collapsed or the proportioning valve is bad (I was told it is possible) you will also get a hard pedal. I learned not to purchase my booster from autozone as the one I bought from them was as bad as the one I was replacing. The rebuilt unit cost me $100 and has worked great for the past couple of weeks. Chad 1973 Imp 1966 Galaxie 500XL --- Jason Slaten <jasonslaten@xxxxxxxxxxx> wrote: > > I HAVE ALMOST NO BRAKES THE PEDAL IS ROCK HARD..IT > WON'T EVEN GO TO THE > FLOOR...COULD IT B MY BRAKE BOOSTER THAT IS CAUSING > THE PROBLEM....I > CHANGED MY PADS ABOUT 3 TO 5 MONTHS AGO.. OR MAYBE A > BLEED PROBLEM WITH MY > MASTER CYLINDER > > _________________________________________________________________ > MSN Photos is the easiest way to share and print > your photos: > http://photos.msn.com/support/worldwide.aspx > > >