[rdorman]

Terry, you need to bleed the master cylinders first. Disconnect the lines, cut a spare line in half and loop it back into the bottom of the master cylinder. Pump until no more bubbles. Reconnect lines.

Jack up one SIDE of the car. Ensure that the master cylinder piston can completely return in its bore. Make sure that the bleeders are up. Bleed the outside one first if you have two on the caliper. DO NOT OPEN THE BLEEDER SCREW TO MUCH. If you do, then you will suck air around the threads. Only open enough so that the fluid will flow.

Which is what sounds as though may have been happening. I use two 'self bleeder' bottles. A little fluid in the bottom of each bottle, put the hose on the bleeder, hang the bottles so they are higher or level than the bleeder (NOT hanging from it) on both front and rear. Pump a few times (nice and slow particuarily on the way up) with my hand (none of this jump on it like a gorilla stuff while a friend opens the bleeder and sprays fluid every where). Refill. Before the bottle is full you will be bubble free and the pedal once you close the bleeder will be like a rock!

Rick