More than likely the Master Cylinder has failed or you have a very serious leak.
No, a busted brake booster will not cause the brake pedal to go to the floor. It will however cause the brake pedal to be extremely hard to push. A defective master cylinder will cause what you describe. Replace the master cylinder and bleed the brakes. It can because it happened to me. The booster lost vaccum and the pedal went to the floor. Sorry, you are wrong. The only reason the pedal went to the floor was because the master cylinder failed. The brake booster only boosts the pressure on the master cylinder and allows you to not have to push so hard on the brake pedal. Cars of yesteryear did not even have a brake booster and they stopped just fine albeit you had to push the pedal allot harder than with power brakes. A failing brake booster will not cause your pedal to go to the floor although it might cause it to go lower than normal before the brakes apply. As long as the master cylinder is good you will still have brakes, but you will have to really push hard and might even have to pump them up in order for them to stop the car.
Check the brake switch up under the dash on the brake pedal. Lie on the drivers floor, look up and then push the brake pedal with yoru hand and see if there is any kind of electrical connector that actuates the brake lights when you push the pedal in.
When you push the brake pedal.
Start the engine and then push the brake pedal down. If it is soft and easy to push then the booster is okay. If booster is BAD the brake pedal would be hard to push.
sounds like you have a leak in your Brake Boost Controler, you should also check to see if there is any leaks in the vacuum lines that connect the engine to the brake booster.
Key on, engine off. (if push button start, press button twice without touching brake) press gas pedal to the floor three times.Key on, engine off. (if push button start, press button twice without touching brake) press gas pedal to the floor three times.
Push the brake pedal? What, exactly, are you asking??
Safest way: Set Parking brake Push clutch pedal to the floor Shift to neutral Turn key to start
Hardness in the brake pedal can because by low brake fluid. Air in the brake lines can also cause the pedal to push hard.
Push the brake pedal to released.
Safest way: Set Parking brake Push clutch pedal to the floor Shift to neutral Turn key to start
The brake pedal will go to the floor but will have absolutely no effect on stopping the vehicle. When you push on the brake pedal it moves the fluid through metal tubes (called brake lines) to force the brake pads against the rotor which slows and stops the car. No fluid means nothing is in there to make the brake pads engage the rotors.