I'm getting only air and little fluid out of the rear Proportioning valve outlet
On my '75 camaro----
I'm getting only air and little fluid out of the rear brakes Proportioning valve outlet when pressing on the brake pedal. What item is bad? the Master or the Proporting valve? Is there a way to check? My warning brake light don't work.
I bought and used a vacuum brake line bleeder ---because I am getting no brake pressure to the rear brakes. They do gravity bleed in the back, but if I try to hit the pedal bleeding ---I get no fluid!!! the proportioning valve may to bad or not properly aligned, but thought I would try the vacuum bleeder , before shelling out alot of $$$$ on a proportioning valve replacement/repair.
Any ideas are helpful---Thanks in advance!!!! Merry X-mas!!!!!