Proportioning Valve Keeps Tripping?

[KyleSeal]

Originally Posted by 72c20customcamper

When the light goes on do the rear brakes still actuate? The proportion valve when tripped will stop the fluid from going to that circuit. I would let the light come on and try to bleed the rear brakes no fluid the circuit is tripped if you get fluid then it may be the switch .

From what I can hear, they still actuate. I am doing this alone so I use my phone camera to see whats going on. With the switch in, it will only send the shuttle valve backwards a small amount, and still let fluid out. When I take the switch out, it will close them entirely. At this point, I have ordered a pressure bleeder to see if I can force some sort of hidden air pockets out.