Under What Circumstances Will a Car Stall?
2 Answers
Main reasons include lack of operational proficiency. The following are several situations where a car may stall: 1. Insufficient RPM: When starting, if the engine RPM is too low and the clutch pedal is released too quickly, the engine drives the transmission to turn the wheels. Suddenly encountering resistance at idle speed with insufficient torque can easily cause stalling. 2. Gear-speed mismatch: When braking causes the car speed to drop while still in a high gear, the engine cannot maintain operation due to insufficient speed, leading to stalling. 3. Inexperienced operation: Beginners often experience rolling back when starting, which can cause panic and stalling. In such cases, using the handbrake is recommended. Before starting in gear, pull the handbrake tight, then lift the clutch halfway, release the handbrake, and apply the throttle. This method prevents rolling back and stalling.
After driving for so many years, I've encountered several instances of car stalling, which is quite common. For example, when starting the engine, if the battery is old or dead, it's easy to stall if it doesn't start. Another time during summer traffic, the engine overheated due to insufficient cooling and suddenly stopped. Improper driving can also cause stalling, especially when starting on a hill with a manual transmission—releasing the clutch too quickly without matching the throttle can shut the engine off directly. When fuel is insufficient and the fuel pump can't draw any, the car will shake and then stop, so remember to refuel whenever the fuel gauge is low. Sensor malfunctions are also an issue, like a faulty mass airflow sensor causing the computer to misjudge and shut down the engine. I recommend regular maintenance, checking spark plugs, oil filters, and the cooling system, avoiding prolonged idling with old cars, and promptly taking it to a repair shop if any issues arise.
