Last night I blew my front left brake line that had been stopped up by a frozen wheel cylinder for several months. Luckily I was stopped, because the back brakes didn't work either (I don't know why). Today I replaced the wheel cylinder and line, and they seem to be working fine, though the pedal hasn't returned to its old position and I'm not sure if the rear brakes are functional. I need to climb under to see if the rear brakes are in fact working. My questions are these: Why would I not have had the rear brakes when my front brakes went? Aren't there two chambers in the MC to prevent this? Is the adjustment I need to make for my brake pedal in the pushrod? It doesn't seem that I should have to touch that even after a line is blown. My front brakes are adjusted correctly right now. If all brakes are working and adjusted correctly, and the pushrod is about where it should be but the pedal is still dropped, is that an indication that the MC needs replacement? how can I tell?
Many thanks in advance for your help.
Tim