Lose break pressure after cranking engine.
Changed both rear wheel cylinders and put in new master, bled everything. tried 2 masters. now I get no brake pressure after I cut the engine on. with the engine off everything feels good. Why would I get no pressure after cranking the engine?
As far as I know all stock brake system. Disc in the front Drums in rear. Power Brakes. When I got the jeep i replaced the master with a reman. a couple weeks ago I noticed brake fluid leaking around my back passenger tire. I decided to replaced the wheel cylinder, I ended up replacing both rear wheel cylinders. the adjuster piece is pretty much seized up so it never changed and I installed the shoes and everything back the way they were. I put a new reman master on also since the old one was leaking at the cap, filed the new one and bent the latch for a tighter seal. After bench bleeding the reman and the brakes after installing the wheel cylinders, my brakes seemed fine, until I cut on the engine. The pedal goes to the floor. took the reman back, got another one (bench bled it very thoroughly. still the same problem. Shouldn't be a problem with the booster i wouldnt think, and I have tried 2 different masters. What else could it be? I do get enough brake pressure to stop the brakes when I roll a few feet in the driveway.