Ford Repair: Brakes, caliper pistons, ford escort

Question
I have a 98 Ford Escort. I just replaced my front brake pads.  I have bled the lines about seven times, but my pedal keeps going to the floor. I have no leaks in the lines anywhere.  Could there be another problem?  

Answer
The most common cause of loss of brake pedal, without external fluid leakage, is a problem in the master cylinder.

Are the pads installed correctly? Are the caliper pistons stuck? Did you turn the rotors? Do the calipers stick on the bracket or move freely?