brakes prob

[plainsmen86]

have any of you experienced problems with brake system like only a few of the brakes will work and the pedal goes down to the floor everytime....ive already changed the master cylinder, the fluid, the pads, turned the rotars and bled the brakes..that would bleed (some wouldnt) and not sure what else besides the proportioning valve but i really hope thats not cuz that will be a pain. so any help would be awesome thanks

[unarmed]

sounds like air in the brake lines..

[89CelicaGTTurbo]

well if you've ruled out everything else, it sounds to me like the proportioning valve.

[insaneinsite]

Also did you bleed your master cylinder off the car? If not you may have to ive never been able to bleed one right on the car. Its easy if you have never done it befor just fond a vise or something to clamp the cylinder in fill the master cylinder with fluid then take a screw driver and operat the cylinder as if the pedal would... make sure you hold your fingure over one of the holes and keep the other one pluges as youpump the cylinder, you should have got 2 plugs with the new cylinder. well other than that it just sounds like a case of a pain in the neck brake sytem and youll just have to keep working the air out of it.. GOOD LUCK

[plainsmen86]

yeah i think its the prop valve too but it doesnt make any sense cuz the left front doesnt even go to the valve yet it still wont bleed and we've pumped those damn brakes so much im sure i could knock a minute off my mile run time and ive replaced the m. cylinder idk what to do and im tryin to sell it so that sucks too.... thanks for the help