I have a brake issue. Last fall I replaced my rear brake pads (I have factory front discs and rear drums). I drove the car a few hundred miles then parked it for the winter. I just tried to finish getting her out of winter storage (I know it's real late but I have been fighting with rear leaf springs). When I hit my brakes I had no pressure. If I pumped the brakes I developed pressure and it held. If I let off the pedal then pumped it again it went to the floor like before. I also noticed that the front reservoir level is dropping and the rear is rising. Could it be air? Is my proportioning valve hosed or anything else obvious??? I'm supposed to be at a car show tomorrow morning in upstate NY. I'm desperately seeking a clue.
