Can a bad brake booster cause brakes to stick?
Can a bad brake booster cause brakes to stick? But if the booster is getting stuck in its boost mode, it will continue to apply force to the brakes even after you release the pedal. And it's not unusual for a faulty booster to stay on after a full stop, and then release itself. Then, the next time your brakes lock up, pull over and disconnect that vacuum hose. Why would my brake pedal go all the way to the floor? A brake pedal that sinks all the way to the floor could indicate a problem with the brake master...