mrs99

I have no brakes on my 99 f150, this weekend hubby replaced master cyl rotors calipers and pads. 2 lines blew in the process so they were also replaced. I left for work this morning and the pedal goes right to the floor and then it stops. I cant get it into a shop til Wed so if anyone has any idea what this could be i would appreciate the help.

Good old Bill

Sounds, like air in the system, master cylinders have to be bench bled before installation, did he?

mrs99

Yes, he did that.

Good old Bill

The entire system has to be bled. Start with the furthest from the master cylinder RR, LR, RF, and LF last. Never letting the fluid level get low in the master while bleeding or you have to start over. Another cause of your problem is fluid leaking out during application.

mrs99

Thanks for your help, as it turned out one of the new calipers was messed up.