How to Adjust the Vacuum Booster?

1 Answers
LaMaverick
07/30/25 1:32am
Cars' vacuum boosters need adjustment. You can connect the vacuum tube on the vacuum booster, start the engine, and let it run at idle speed. Wait for the vacuum booster to enter normal working conditions, then measure its values. More details are as follows: 1. The vacuum booster uses vacuum to increase the force the driver applies to the pedal. It is generally located between the car's brake pedal and the master cylinder. 2. For ease of installation, it is usually integrated with the car's master cylinder as a single unit, with part of it extending into the vacuum booster's housing. The car's vacuum booster mainly consists of a vacuum servo chamber and a control valve. 3. When the driver presses the brake pedal, the control force from the pedal mechanism pushes the control valve push rod 12 and the control valve plunger 18 to move forward.
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