1996 Chevy Blazer brakes can not be bled

i have a 1996 chevy blazer i replaced the front brake pads and rotors and the front passenger side caliper we bled the brakes but keep getting 90 percent air on the front passenger side the pedal is hard when not running but when started goes strait to the floor, so replaced the caliper again and the rubber line from the caliper to the aluminum brake line, again all air no brakes abs light is not on at all and we had brakes before we started and they worked,PLEASE HELP AS WE ARE IN GREAT NEED OF A FIX FOR THIS AIR AND HOW TO FIX,THANKS