84 proportioning valve

[waxandgo]

rear brakes would not bleed. after replacing the both wheel break cylinders, disassembling the rear break lines and them being free from obstruction replaced the master cylinder. after not getting fluid to the rear moved on to the proportioning valve. disconnected the rear line and depressed the break, nothing coming out of the line, tested the electrical going into valve, there was current present and somehow while the break line was off my son pushed on the pedal and out comes the inside valve on to the ground but i got fluid coming out. now my problem is when re-installing the valve into the housing i cant get fluid to the rear breaks but it does come out of the valve opening? any suggestions

[Ratt643]

The proportioning valve is also refered to as a shuttle valve. When pressure is lost on one side of the valve, it shuttles to the opposite side to keep from losing all fluid and pressure to operate the remaining brakes. You can shuttle or reset the valve one of two ways. You can press a button on the front of the proportioning valve to reset it or, you can loosen a front brake line ,press the brake pedal and retighten the loose brake line. I had to replace the one on a 79 Trans Am because I had no pedal. New valve worked great. The only place I could get a new one was thru PirateJack.com. They have OEM style components and are in North Carolina. Good Luck