Hi. I just replaced both fron calipers, one in May one just this week, and rotors. Front right caliper was locked up that is what made me do it. So I replaced both rotors too and a pads. Bleed the system, pedal always sinks to the floor after it gets somewhat hard. So there's that issue and then the fronts won't release! Tried bleeding the abs and got some air and dirty fluid out of the system. But cannot figure out the remedy to get my brakes to work. Watched your video on sinking pedal, is it guaranteed that I would have to replace the master brake cylinder? Its a 2014 f150 fx4. Never had an issue since the last time I replaced the drivers front caliper back in May.
Thank you
Steve
First I would replace both rubber brake hoses left and right they can collapse and do just that if not that then either the master cylinder or the brake booster is bad
