Hello All, I believe I may have figured out why my brake pedal goes to the floor and has to be pumped up again. About 1 month ago all rotors, pads, and fluid was changed. Fluid was power flushed and changed with a machine at the dealer. There are no fluid leaks anywhere and the fluid resovoirs are still full. I should conclude then by looking at some other posts here that this is the beginning of a master cylinder failure. The car is a '92 w/78 K miles, and to my knowledge the master cylinder was not replaced by the previous owner. The big question is, Is there a surefire way to confirm that is the problem without taking it to the dealer? I will be taken there ASAP to see about the problem, but it's Friday afternoon and some insight would be helpful. If the master cylinder does need to be replaced any estimates how much $ I am talking here. Thanks in advance!