What Causes the Squeaking Noise When Releasing the Brake at Startup?

1 Answers
LeEvan
07/29/25 5:23pm
There are mainly three reasons for the squeaking noise when releasing the brake at startup: 1. If the noise stops immediately after pressing the brake, it may be due to the rotor being ground. 2. If a squeaking sound occurs after pressing the brake, it could be due to improper brake positioning or insufficient lubrication. 3. If different types of noises occur before and after pressing the brake, there may be an issue with the wheels or braking system, and it is recommended to have it inspected as soon as possible. Below is some additional information: When lifting the brake in a manual transmission car, the transmission does not output power, and the vehicle starts only after the brake is fully released. In an automatic transmission car, as soon as the gear is engaged, the transmission provides the force for the tires to rotate forward, but the vehicle does not move because the brake is pressed. When starting an automatic transmission car, the brake is usually released slowly. If the brake is released quickly, this noise will not occur.
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