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Is It Normal for Brakes to Lock Up on Rainy Days?

1 Answers

Elijah

07/29/25 10:46pm

It is normal for car brakes to lock up on rainy days. You can try repeatedly moving forward and backward about three times. If this doesn't work, you can pour 100℃ boiling water onto the brake pads and then repeat the previous method. The brake pads and brake drum will expand due to heat and automatically separate. Alternatively, you can remove the tire and tap the brake drum to loosen the adhered brake shoes and drum inside. Below is some relevant information about brake lock-up: Solution: Use ABS (Anti-lock Braking System) technology. The main feature of this technology is that during emergency braking, the wheels do not stop rotating, ensuring that the vehicle does not experience sliding friction with the ground. This helps maintain vehicle control and prevents tire blowouts due to sliding friction. ABS Anti-lock Principle: The ECU (Electronic Control Unit) controls the ABS actuator to increase, maintain, or reduce the brake fluid pressure for each wheel. Each wheel is equipped with a speed (vehicle speed) sensor that sends the wheel's speed signal to the ECU. If excessive braking force risks causing wheel lock-up, the ECU sends a signal to the ABS actuator to reduce brake fluid pressure. Once the nearly locked tire is released from braking, it naturally regains traction control.

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