it could also be your booster. at a stop sign, push down on the brakes and let go, then push again and let go, how many times can you do it and still hold the car at the stop sign?
brake fade is where you are pushing on the brakes and they work for a few times, then you still have power assist, but the pedal fails to actuate the brakes. water in the lines will do this quickly going down a long hill.
if it's the MC the pedal is going to go the floor... usually.
first step is flush all the fluid out.
somebody on here uses blue fluid for the first flush, then gold fluid the next 2 year flush, then back to the blue fluid then back... makes it easier for him to know if all the fluid is out.
make sense to me... now where do you buy this blue fluid?

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!