Why Does the Vehicle Always Roll Backward When Starting?
2 Answers
There are two main reasons why a vehicle tends to roll backward when starting: 1. Manual transmission cars: Rolling backward in a manual transmission car during startup is usually caused by improper operation by the driver. Normally, you should first release the clutch and wait until the car's forward driving force counteracts the backward gravitational force before releasing the brake, which will reduce the rolling. 2. Automatic transmission cars: There is a time interval when switching from the brake pedal to the accelerator pedal during startup. Even after pressing the accelerator pedal, it takes some time for the car's driving force to increase enough to counteract the gravitational force. In such cases, engaging the D gear on a small slope may help prevent rolling backward.
When I had just been driving for a few months, I often encountered the problem of the car rolling backward when starting, especially on uphill sections, which scared me a lot. The main reason was that when I operated the manual transmission, I released the clutch too quickly, and the engine power couldn't keep up with the force of gravity. I remember the first time on a small slope, I stepped on the brake and clutch to start, but forgot to give enough gas, and the car slid straight back, almost hitting the car behind me. The instructor later taught me the correct method: hold the clutch steady to the semi-engagement point, then slowly add gas, while using the handbrake to assist in starting. After practicing a few times, it rarely happened again. This is not just a problem for beginners; improper operation or too steep a slope can also cause rolling back. If you're worried, find a gentle place to simulate it a few more times, or have a friend accompany you for practice. Gaining experience will make it much safer.
