What causes the abnormal noise when shifting to P gear before the car comes to a complete stop?
1 Answers
Abnormal noise when shifting to P gear before the car comes to a complete stop is the mechanical impact sound between the automatic transmission and the parking gear. The car must come to a complete stop before shifting to P gear. Shifting to P gear before the car stops can damage the transmission because when an automatic transmission car is shifted into P gear without coming to a complete stop, the locking function of the transmission will bear relatively high pressure. At this time, the gears of the transmission have not stopped working, and directly shifting into the parking gear can easily damage the gears. Hazards of prolonged abnormal noise: If this situation occurs for a long time, it will damage the gears of the transmission. When an automatic transmission car is shifted into P gear without coming to a complete stop, the locking function of the transmission will bear relatively high pressure because the gears of the transmission have not stopped working, and directly shifting into the parking gear can easily damage the gears. Working principle of P gear: The working principle of P gear is to lock the output shaft of the transmission, limiting the transmission of the output shaft, thereby preventing the vehicle from moving under external force. However, when waiting at a traffic light, it is best to use "handbrake + neutral gear." If P gear is engaged and the car is rear-ended, the P gear locking mechanism inside the transmission can easily be damaged. Broken parts operating inside the transmission can damage other components, and the repair cost of the transmission is quite high.