Hey all I have a 1990 XJ that I have been battling the brakes on. The first 2-3 inches of pedal are very soft with almost no resistance with enough braking power to drive around 15mph and come to a stop. the last inch of pedal gets very hard and if I push it about as hard as I can stop it with decent power from about 50mph but still worse than before all this. Originally my master cylinder was leaking and I wanted to refresh the brakes at the same time. I bought a new master and bench bled it and my brakes went to the floor, I checked everything noticed one of my brake calipers were leaking so I replaced those and made no difference.
At this point I have replaced 2 new master cylinders, the calipers, wheel cylinders, soft lines and pads. I have bench bled the master 3 times out of desperation and ran gallons of air free fluid through the system. Only things I haven't replaced is the booster(which I feel I am getting good assist from) the hard lines and the combination valve.
I've read countless threads and am at a loss at this point.
At this point I have replaced 2 new master cylinders, the calipers, wheel cylinders, soft lines and pads. I have bench bled the master 3 times out of desperation and ran gallons of air free fluid through the system. Only things I haven't replaced is the booster(which I feel I am getting good assist from) the hard lines and the combination valve.
I've read countless threads and am at a loss at this point.