What Causes the Abnormal Noise When Braking in an Automatic Transmission Car?

[OElliott]

Abnormal noise when braking in an automatic transmission car may be due to the normal activation of ABS or electronic linkage. Here are the detailed explanations: Normal Activation of ABS: The working process of ABS is actually a cycle of locking-releasing-locking-releasing, keeping the vehicle in a state of critical locking with intermittent rolling. Therefore, when you brake hard and trigger the ABS, it will produce a clicking sound, which is a normal phenomenon. In this case, simply press the brake pedal firmly to the end. 'Clicking' Sound from the Gear When Braking in an Automatic Transmission Car: If you hear a 'clicking' sound between the transmission and the gear lever when pressing the brake pedal, the main reason for this noise could be the electronic linkage between the braking system and the automatic transmission. When you press the brake, the transmission solenoid valve opens and emits a 'clicking' sound. At this point, you need to press the gear lever lock button to shift gears, which serves as a safety reminder.