Air in brake lines

Hi I have a 1994 Toyota pick-up 3.0 I put new rotors and pads on so I replace the fluid and ever since then I keep getting air in my system replace the master cylinder 4 times took it to two different mechanics and my brake pedal still gets soft after a couple of days of bleeding it anyone had the same problem

 

I can only guess that one of your connections is drawing in air it could even be a bad bleeder valve.

Yes they can draw in air and not leak fluid. With a flare connection a piece of grit can cause it to allow airto be drawn in.

Your Emergency brake is working like it should to keep the rear brakes adjusted up like they should be??

 

Yea E brake works fine I kind of see a small leak in the front passenger side but since I never loose fluid didn't think much of it