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What is the correct method for bleeding brakes?

1 Answers

StLuke

07/29/25 6:52pm

The correct method for bleeding brakes is as follows: 1. To bleed the brakes of a car, two people are required to complete the task. 2. The person sitting in the driver's seat should press the brake pedal firmly and hold it down without releasing their foot. They should wait until the person underneath the car has finished bleeding the brakes and instructs them to release the pedal before doing so. If there is a significant amount of air in the brake system, making the brake pedal feel soft, the person should quickly pump the pedal (similar to using a bicycle pump) and then firmly press the brake pedal down, allowing the person underneath to begin bleeding. 3. The person underneath the car should wait until the person inside has firmly pressed the brake pedal, then use a wrench to open the bleeder valve on the brake caliper to release air. After tightening the bleeder valve, they should instruct the person inside to lift their foot and press the pedal again. This process should be repeated until no air bubbles are visible in the brake fluid coming out of the bleeder valve. Note: If there is an issue with the brake caliper of one wheel or if a new brake caliper has been installed, only that wheel's brake system needs to be bled. If the brake pedal still feels soft after bleeding, the brake calipers of the other wheels should also be bled. (Important: Always check and add brake fluid when bleeding the brakes.)

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