What does brake booster system failure mean?

1 Answers
ValeriaAnn
07/29/25 2:57pm
Brake booster system failure means you will feel heavier resistance when pressing the brake pedal. Below is extended information: 1. Brake booster: The brake booster is a widely adopted braking assistance device ranging from light vehicles to medium-duty vehicles, which can be roughly categorized into vacuum boost, hydraulic boost and pneumatic boost. It consists of hydraulic cylinder, support arm, pressure arm and brake plate, characterized by hydraulic rods at both ends of the cylinder connecting with the support arm and pressure arm, with rubber-wheeled brake plates installed on the pressure arm. 2. Brake booster: The brake booster utilizes vacuum generated in the intake manifold during engine operation to assist braking. The booster is a cylindrical unit approximately 20cm in diameter and 15cm in height. Inside the cylinder there's a diaphragm with a push rod in the middle, dividing the chamber into two parts - one connected to the engine intake manifold via piping. When the brake pedal is depressed, it connects to atmospheric pressure, and the pressure difference between the two sides provides braking assistance.
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