Im having trouble with my brakes.I have four wheel disk brakes.I replaced my rear from a disk/drum rear.I purchased a ile proportion valve from ed miller.My problem is i cant get fluid down to the front calipers i bled the master i have good fluid pressure! i also removed the brake line from the prop valve also i had good pressure.I also removed the brake line from the drivers front caliper i have no fluid! i pump the pedal i get nothing.Anyone please it has me baffled Fluid is not reaching my calipers.

 

Did you bench bleed the master?
Did you bleed the system from the rear (pass side, driver's side), then the front (pass side, driver's side)?
Could the flex hoses themselves be a problem?

JamesC

 

I have good rear brakes.My rears bled good I just cant get fluid to fronts.Any ideas i removed the lines from prop valve and im pumping good fluid

 

I had the same trouble with my front disk brakes. I solved this issue this
weekend by replacing both front rubber hoses that lead from the metal
brake lines to the calipers. You can check this by disconnecting the
rubber hoses from the steel lines and see if get brake fluid to leak out.
I spent a month replacing parts before someone told me that
they thought the rubber hoses were bad.
Good luck

 

its common for the rubber flex hoses to deteriorate from the inside out and create a "flap" inside the hose that wont allow fluid to pass, sometimes, from the master, other times it can lock a wheel.