What Causes the Creaking Sound When Slowly Releasing the Brake in an Automatic Transmission Car?
3 Answers
Automatic transmission cars often produce a creaking sound when the brake is released too slowly during startup. This is a common issue with many automatic vehicles. Here is some related information about car brakes: 1. Brake Overview: Braking, also known as deceleration, refers to the action of stopping or reducing the speed of moving locomotives, vehicles, and other transportation tools or machinery. 2. Working Principle: 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 brake device is a mechanical braking device that can slow down the speed of the vehicle, also known as a decelerator.
I just bought a new automatic car, and it makes a creaking sound when I slowly release the brake. I think it's quite common. From my years of driving experience, it's mainly the performance of the new braking system during the break-in period. The surfaces of new brake pads and rotors might be a bit rough, causing friction noises during initial use, especially when slowly releasing the brake. This phenomenon usually disappears naturally after driving a few hundred kilometers. Another reason could be the accumulation of dust or debris on the brake rotors, which tends to produce creaking sounds in humid weather. I've also noticed that sometimes the electronic systems in automatic cars, like the ABS activating, can cause slight noises. In short, don't worry too much, drive it for a while to see if it improves, but make sure to regularly check the cleanliness of the brake rotors to avoid excessive wear affecting braking performance.
Hey, my new automatic transmission car makes a rattling noise when I slowly release the brake. At first, I thought it was some major issue. Later, a mechanic buddy told me that this is common in new cars, either because the brake pads and discs haven't worn in smoothly yet or due to dust sticking to them. After driving for two or three weeks and covering a few hundred kilometers, the noise usually disappears. Personally, I think there's no need to rush to fix it. Just pay attention to cleanliness while driving and avoid sudden braking on slippery roads. If the noise persists after the break-in period, then it's worth checking for foreign objects stuck in the brakes or assembly issues. Reminding the technician to inspect the brake system during new car maintenance can also prevent future problems.
