Spongy brakes - UPDATE.. HCU fluid routing diagram Hi all. Just looking for some input/thoughts from other GenII Explorer owners with regards to brakes. Since I purchased my X a year ago it has been plagued by a spongy brake pedal. I have never owned an explorer before, nor driven anyone else’s so I don’t have much to compare to. To date I have done the following maintenance: -Replaced brake pads with EBC 6000 pads (front and rear disk brakes) -Front and rear rotors were still within spec and not scored, warped, cracked, etc so I did not replace/turn them. -Pressure bled the entire system removing all the old brake fluid and filled with new Motomaster Ford DOT3 (288F Wet boiling point). Then gravity bled, then pressure bled again. -I have not blead the HCU since I do not have the electronic ABS pump/valve cycling tool. However I have braked hard enough that the ABS turns on then bled the brakes again. -All the rubber lines appear to be in good condition and do not bulge or bubble when the brakes are applied -Greased all the caliper slider pins with caliper slider lube. -All the caliper pistons move in and out freely. -Performed pump up test.. ie pump the brakes with the key off until the pedal gets hard, then keeping pressure on the pedal see if it moves after a minute. It doesn’t.. The one thing I have not replaced is the master cylinder. From what I have read if the brake pedal is depressed and hits the floor it can tear a seal in the master cylinder (ie by extending the pistons beyond there normal operating range). I’m not sure if this is the problem or not. I can say that when I brake hard the tires have never locked up (even with the ABS fuse removed). The most I get is a very very slight voooov sound (I’m sure this is just the rotors that aren’t 100% true), no vibration or pull, to a gradual stop. Don’t get me wrong the truck does brake, but the pedal feels soft the whole time and I can almost make it hit the floor if I push with medium force. I now this sounds like apples to oranges but I had a Nissan Maxima before and the brake pedal was hard as a rock and only moved half an inch. It feels to me like there is a pinhole leak someplace, maybe the master cylinder, but I don’t seem to be loosing any brake fluid. Or that I have air in the system somewhere but like I said I have gravity bled, used a vacuum pump to bleed and pressure bled the brakes 4 or 5 different times now. I don’t know what to do, it just doesn’t feel safe towing a boat with a truck that has such mushy brakes. Any one experience the same problem or feeling.. Is there a rebuild kit for the master cylinder? Thanks for the help.