I may have accidentally fixed it.
After work I went home and tried some old fashioned "Ford" troubleshooting.
I pumped the brake pedal with the engine off and while holding the pedal started the engine. The pedal dropped about 1.5". That's a good thing.
I opened the hood and disconnected the hose to the booster. I blew in the hose as hard as I could and could not blow air in to the booster. Again a good thing. It indicates the check valve is good.
When reading the shop manual it said that the system self tests when the engine is started and the car is accelerated up to 7mph. It said you can hear the anti-lock modulator work and if applying light pressure to the pedal one can feel the system self test. I did this and it worked.
I took it on a drive and for the first time could feel the anit-lock system modulate the brakes during a "panic" stop. I did that 4 times and when back home. each of the rotors were hot which indicates to me that all four brakes are working.
The brakes felt a whole lot like normal after. I'm not sure what happened or what I did but the brakes feel quite normal now and will really stop the car well.
I did back up the car pretty quickly and slammed the brakes first. Maybe it was forcing the anti-lock system to work had some effect both in reverse and forward.
I do need new pads soon and maybe they are a little glazed. The rotors look like new. Could it have been cleaning solution I used on the wheels? Or spray tire shine stuff? I'll avoid that in the future. May be getting the brakes pretty hot cleaned that stuff off. May be excersizing the anti-lock did something but all is well now.
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If it isn't broke, I haven't fixed it yet....