Brakes - No pressure in pedal
I have a 93, 4.0L M/T and its a 3rd vehicle so it gets driven infrequently. It sat for about a week since I last drove it and when I got in it and started to pull out of the driveway the brake pedal went all the way to the floor with little to no pressure. The red "Brake" light also came on in the steering cluster. I turned the jeep off and pumped the brake and pressure seemed to come back to the pedal and when I restarted it, I lost pressure again. I am thinking its the master cylinder. I checked for fluid loss, and there are 2 sides in the master for fluid. Looking at it from the drivers side of the Jeep, the left side is empty or low and the right side is full. I see NO leakage anywhere under the Jeep. All 4 wheels/hubs are dry. I also see no leakage at the master or booster on the firewall. Thoughts? I will be doing a brake job hopefully this week and will be replacing the calipers, rotors and pads... the caliper on the front right is freezing and not releasing. Could this be my issue or part of it as well?
93 YJ, 6 cyl,3.5" BDS,1" Prothane BL,1/2" booms, 33" Mickey Thompson MTZ on MT Beadlocks.
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