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What Causes the Clicking Sound When Pressing and Releasing the Brake Pedal?

2 Answers

SanEsther

07/29/25 2:04am

There are generally two reasons: one is the friction between the wheel and the braking system, and the other is rust between the brake disc and brake pads, which causes noise due to rust friction. Below is relevant information about brakes: 1. Definition: Braking, also known as deceleration, refers to the action of stopping or reducing the speed of moving locomotives, vehicles, other transportation tools, or machinery. The general principle of braking is to fix a wheel or disc on the high-speed shaft of the machine and install corresponding brake shoes, bands, or discs on the machine base, which generate braking torque under external force. The braking device is a mechanical braking device that can slow down the vehicle, also known as a decelerator. 2. Classification: Braking is divided into emergency braking and daily braking. During emergency braking, be aware of the risk of rear-end collisions.

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OMalia

08/12/25 6:05am

I've encountered this situation before, the sound is like something is stuck. It's mainly an issue with the braking system. For example, lack of lubrication on the guide pins can cause the brake caliper to not retract smoothly, resulting in a clunking sound when pressing and releasing the brake pedal. When brake pads wear down to their limit, the metal backing plate will rub against the brake disc, making a very noticeable noise. Sometimes it's because the retaining clip wasn't installed properly or has come loose, causing a clunk with every brake application. Aging stabilizer bar bushings in the suspension can also cause this, especially when braking during turns. First, check the thickness of the brake pads. If they haven't reached their limit yet, promptly service the guide pins - applying some special lubricant usually solves the problem.

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