1990 Chevrolet C 1500 brakes
 

My 1990 Chevrolet C 1500 has a soft brake pedal goes to the floor before it stops I replace the master cylinder it's full of fluid replace both front calipers and pads what could be the problem

Did you bleed the master cylinder first then bleed the 4 wheels? Sounds like there is air in the system!

Hi,
Just an FYI you do need to bench bleed the master cylinder first then install and bleed all 4 wheels starting with the right rear, left rear then right front and left front. Hope this helps.