Will an automatic transmission car move when in D gear without pressing the accelerator?
2 Answers
An automatic transmission car will move when in D gear without pressing the accelerator, so during the driving process, if you need to stop and wait, it is recommended to shift the car's gear to P. If driving uphill on a steep slope without pressing the brake, even if the car is in D gear, it may not move forward and could stay in place or roll backward. On a downhill slope, the car will definitely move forward without pressing the brake. Some car models will not continue to move forward when in D gear without pressing the accelerator and require the accelerator to be pressed to proceed, which is actually related to the type of transmission power coupling device.
I've been driving for nearly twenty years, and when an automatic transmission is in D gear without pressing the accelerator, the vehicle usually moves slowly. This is mainly because when the engine is idling, the torque converter in the transmission transfers power to the wheels. On flat ground, the speed is about 5-8 kilometers per hour, equivalent to a person walking briskly. However, the situation is different on slopes: it may not move at all uphill, but will go faster downhill. I suggest that beginners pay special attention to this and it's best to keep the brake pressed at traffic lights, otherwise it's easy to rear-end the car in front. Additionally, when starting a cold engine, the transmission response may be delayed for a few seconds, which is normal. Operating like this for a long time actually causes significant wear on the transmission, especially when frequently moving short distances.