How to Check the Vacuum Booster?

1 Answers
MacCamila
07/30/25 1:48am
Vacuum booster inspection method is: 1. Turn off the engine, then press the brake pedal several times with force to eliminate the vacuum inside the vacuum booster. 2. Press the brake pedal with appropriate force and keep the pedal in the braking position, then start the engine. 3. If you feel the brake pedal position drops slightly, it indicates the vacuum booster is functioning normally. Otherwise, check the vacuum pipeline or the vacuum booster. Introduction to vacuum booster: 1. The vacuum booster is a component that uses vacuum (negative pressure) to amplify the force applied by the driver on the pedal. 2. The vacuum booster is generally located between the brake pedal and the brake master cylinder. For easy installation, it is usually integrated with the master cylinder as a single unit, with part of the master cylinder extending into the vacuum booster housing.
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