No breaks

Bad how? Hard to press? Pedal goes to floor? Assuming no leaks and no air in system, a pedal that goes to the floor will be a bad master cylinder. A bad booster would make for a hard pedal.

Normally when installing brake pads you do not bleed the brakes as it is totally unnecessary. It is possible that you ran the system dry enough to require a trip to a Ford / Lincoln dealership to get the brakes bled properly. Did the brakes function properly before you worked on them?

The booster and master has been change still no breaks and peddle is real soft

Had a similar problem.2011 lincoln mkx.brake pedal went to the floor.I was driving up to my driveway on sheer ice.I applied the brakes (they had been working perfectly).the abs activated,but I still flew past my driveway. I backed up to the driveway to try again.when I put the vehicle back in drive,the brake pedal went to the floor.I drove the car to my shop to check it out.master cylinder was full of fluid,no brake fluid leaking.o.k.must be the master cylinder,right?I looked on line and found someone with the same problem.they changed the master cylinder, but the pedal still went to the floor.this is what they did.I tried it and it worked.find a slippery surface.ice covered parking lot,etc..drive in reverse (10mph) and grenade the brakes.keep doing this several times.you want the abs activating in reverse. I had to do it 5 or 6 times,but it worked.

For those gearheads out there,if you need to bleed brakes on an abs vehicle, you can use the same fix.drive in forward on a slippery surface. Grenade the brakes.you must hold the pedal down.have a friend bleed the calipers/cyl.I've done it myself using an adjustable telescopic rod from the pedal to the seat.