[49396]

I have a 1989 jeep MJ 4.0 I-6 4X4. I just installed a new height sensing proportioning valve, along with the porportioning valve by the master cylinder. I also have installed rebuilt front brake calipers, and new rear wheel cylinders. I adjusted the rear brakes until they "dragged" a little. I bled the system twice, and my brake paddle drops to the floor. There is No resistance to the paddle. What am I doing wrong? The brake paddle should be firm. "O" is this the right thread for MJ's
Thanks for your input

 

[piaa_nissan]

Have you checked for leaks? I'm wondering with all the replacing you've done if maybe your master cylinder is not up to snuff. Perhaps fluid leaking past the seals in the bore or maybe you have a bad caliper, are they remanned or new?