Does Idle Start Hurt an Automatic Transmission Car?

[ChristopherAnn]

Idle start can indeed harm an automatic transmission car. During startup, the engine speed drops instantly, causing abnormal noises from the engine. The fuel cannot be fully burned, leading to carbon deposits. Correct procedure for starting an automatic transmission car: First, turn the key to the second position to allow the car's computer system to begin self-checking, which takes at least 5 seconds. Then, press the foot brake and shift the gear from P to N (for reverse, you can directly start the engine in P gear). After releasing the foot brake, turn the ignition key to the start position to fire up the engine. Next, press the foot brake, release the handbrake, and shift from N to D. For cars with a one-button start, press the foot brake and shift from P to D. Gradually release the foot brake to start moving. For prolonged idling in an automatic transmission car, shift to P gear. P gear is a special position that mechanically locks the transmission output shaft to secure the vehicle, functioning as a parking brake to prevent the car from moving.