What is the problem if the air pressure of the parking brake drops quickly?

1 Answers
Tammy
07/30/25 3:06am
If the air pressure of the parking brake drops quickly, it indicates there is air leakage in the air reservoir or air pipes. If there is no leakage after the engine is turned off, it is normal pressure release. Method for bleeding the brake system: First, two people need to cooperate to avoid mistakes. One person is responsible for pressing the brake pedal 4-5 times, while the other person loosens the bleeder screw on the brake caliper. If there is indeed air in the brake lines, some brake fluid and gas will be expelled. Repeat the above steps until only brake fluid comes out, indicating that all the air in the brake lines has been removed. Finally, tighten the bleeder screw to complete the process. Definition of drum brakes: Simply put, drum brakes are braking devices that use stationary brake shoes inside the brake drum to create friction against the rotating brake drum, thereby reducing the wheel's rotation speed.
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