Busted a brake line 3 days ago. Up till then, brakes worked great. New calipers and pads on the front (2 months ago), new cylinders and shoes on the back (3 weeks ago). Ordered and installed new stainless lines from Quadratec along with all new hoses and fittings. I was surprised how brittle some of the old lines were, probably because it didn't get driven that much living in NC at the beach in OBX.
I have bled all the lines 3 times. When you hit the brake with the Jeep off, nice firm pedal with little travel. Turn it on and the pedal goes almost to the floor, very mushy. Pump it and it stiffens up.
I'm thinking there is air in the master cylinder. Don't think it's bad cause the pedal doesn't travel after it "bottoms out" after pumping it (am I right?). Is there an easy way to bleed the master without taking it off?