Okay I have had the brakes system redone except the brake booster it seems to be fine and holding air , but to no help i still have about 4-6 inches of brake pedal travel and when i rapidly press the brakes the Pedal gets rock hard and no brake power and if I'm holding the brakes the red brake light will appear . But I'm thinking it could possible be a abs module ? I had the truck hooked up to a power bleeder and have bleed it at the calipers and wheel cylinders 2x already and it still has not fixed the issue , any ideas would be greatly appreciated

 

Read this thread and see of anything pops out at you.

https://www.ford-trucks.com/forums/1...-problems.html

 

If the red light is on that usually means the brake fluid level is low.

When you bled the system did you crack the bleeder on the ABS module like the wheel cylinders/calipers?