Why does the engine stall and fail to start?

[DelRyan]

The reasons why the engine stalls and fails to start are as follows: 1. Automatic transmission models: Automatic transmission models are not prone to stalling, while manual transmission models may frequently stall due to insufficient driving skills. However, it is not impossible for automatic transmission vehicles to stall. The main reason is the use of low-quality fuel, which causes engine carbon buildup and stalling. 2. For new cars (automatic transmission), the main reason for stalling is insufficient driving skills. Another possibility is issues with the car engine or fuel system. For new cars, the likelihood of engine problems is relatively small, with most issues stemming from the fuel system. 3. For older models, aside from insufficient driving skills, stalling can also be caused by the use of substandard fuel, leading to engine carbon buildup and other related issues.