RepairPal's independent, master mechanics track down the best of the best in auto repair. Learn more »
Get the latest advice about your car
i replaced master cyclinder brake booster and bleed all the brakes and when you start the car there is no brakes
This can be many things. Where did you get the master? If it is not a factory quality unit, then I have seen many problems with 'rebuilt' master cylinders. I will never use them.