Brake Pedal on the Brink of Oblivion Resolving the Floor Plunge

Misaligned brake shoes. If your car has rear drum brakes and the brake pedal goes to the floor, the rear brake shoes could be out of alignment. It's either a vacuum leak or your booster is leaking. Booster runs off vacuum. Booster run brake systems usually require replacing the booster ... Depress the brake pedal several times slowly. If the pedal goes down farther the first time but gradually rises after the second or third ... Is your brake pedal sinking all the way to the floor when you press it? Does it feel softer than normal, or spongy? It's not actually on the floor; you still have some breaking if only one of the two circuits fails. I'd first look for a leaking line, usually ... The brake pedal just goes completely to the floor, and there is virtually no braking action. The problem also directly affects the power-steering at the same ... Yes, the pedal should drop when the engine is started and vacuum is supplied to the booster, but the pedal should not go all the way to the floor! My braking pedal sometimes goes to floor during driving, mainly when I'm in a traffic jam and using the brakes actively. The pedal will go half way down, like it's suppose to, then I feel a release of pressure and it goes to the floor. When it goes to the floor, it doesn't stop ... Brake pedal goes to floor. How to fix a brake pedal that sinks in your car DIY with Scotty Kilmer. How to replace brake master cylinder.