This translates to increased clamping pressure on the car’s braking system, be it via vacuum or hydraulic pressure, or even electronic actuation. Where that takes place is inside the brake booster.

Feature: The Power brake booster has a fast vacuuming speed and a high vacuum degree. It can pump the vacuum degree in a 2 liter vacuum bottle to more than 0.09 within ten seconds. Moreover ...

Most brake boosters run on a vacuum produced by the engine. The cause of booster failure can be as simple as a loose vacuum hose or a ruptured diaphragm that requires component replacement.