if i haven't pushed the clutch in for the past 60 seconds, it looses all pressure and i have to pump it up to get it to work. the interesting part is (to me) that the master cylinder isn't loosing any fluid. air must be getting in, or maybe fluid is leaking around a seal internally. the slave was just rebuilt 500 miles ago so i don't think it has anything to do with that. i tried to bleed the system, but didn't get any air out of the line. i could use some help.