Well I thought it was a leak, I have 4 wheel disc brakes, I found a defective rear caliper so I replaced it. The thing is Im not loosing pressure without the car on, my brakes are hard as crap, as soon as I start the car the pedal goes down and I can be doing 30 mph and slam on the brakes and the car won't come to a hault it just glides, its really wierd as far a slave cylinder that is just a clutch thing. Anyone else have any ideas, Im going to check to see if the pads are glazed or anything and Im going to Micrometer the rotors to make sure there in clearance not sure what else it could be.