94 civic coupe with brake problems

[james497]

ok so my brakes work most of the time but some times the pedal will go to the floor before they work, then after that they'll be back fine for a while. i'm thinking master cylinder or brake booster plus abs light is on. please help

[Barefoot]

u need to have the abs scanned and its codes pulled. u could have a bad pump or master. im going to say master from the description.

[james497]

thanks

[88civic_hatc]

you should feel the pedal drop when u crank it up if it dont drop its the booster. the diaphram probly f'd in it