Booster for Hiace ,Highlander

What is vacuum brake booster and how it works?

Vacuum brake booster is located between the firewall and brake master cylinder of a vehicle. They work to help cars to be able to stop with a mild touch onto the brake pedal.

vacuum brake boosters work with the use of vacuum power, which come from Engines whenever they run. The power booster gets the engine vacuum with the assistance of a rubber hose that comes from the intake manifold. Then the vacuum is used to increase the pressure that's applied to the pedal, making it much easier to stop the vehicle without having to stomp on the brakes. This allows the vehicle to stop quickly. The vacuum brake boosters take the vacuum of the engine and magnify the power when your foot press the pedal.