 did I diagnose my brake problem right??
Hi, All:
Can one make a conclusion that my brake master cylinder is internally leaking based on the following observations...
1) with engine off...the brake pedal is always soft. When I pump it multiple times, it gets harder and harder....BUT if the foot is pushing the pedal, it will slowly, with much resistance go to the floor.
2) when engine is starting....the whatever pressure that was built up in #1 (above) goes to zero and the pedal easily goes to the floor as if it were the knife through the butter.
...here is my hypothesis...
the master cylinder is leaking internally past the secondary or maybe primary cup....I have to apply much force to push the piston further when the engine is off. When hte engine is on, the booster amplifies my force and the piston is pushed much easier.
Can somebody confirm or argue against me as I do not know if I need to replace the master cylinder or if it is ok, but something else is at play...
Thank you, | 
