Out of the blue, last night on my way home from work, I lost my brakes. Well not totally. If I depress on the petal hard I have brakes for a minute, but the go steadly to the floor. If I just ease on the petal, no brakes at all! There are no ruptured lines and the resovior is full. Could this be a bad master cylinder?
I just replaced one in my wife's '96 suburban.....it had to be the easiest cheapest car repair I've done. I bought a reman'd master for $32 plus a quart of brake fluid and it took about an hour including going the parts store and bleeding all four brakes. I usually haven't been so lucky.