What are the causes of engine stalling?
2 Answers
Engine stalling can be caused by: 1. Abnormal resistance in the crankshaft position sensor, leading to the loss of crankshaft speed signal when the engine is hot, resulting in stalling; 2. Changes in the resistance of the fuel pump due to prolonged operation, causing it to fail to provide normal fuel pressure and leading to stalling; 3. Ignition system failure or overheating of the ignition module, preventing normal operation and causing stalling; 4. Abnormal throttle signal voltage causing the engine to stall while driving; 5. Loose wiring connections leading to intermittent engine stalling. Methods to address engine stalling include: 1. Checking if the fuel tank has sufficient fuel; 2. Inspecting whether the filter is clogged; 3. Verifying if the battery is supplying power; 4. Checking if the fuel pump is delivering fuel.
A while ago, my car suddenly stopped while I was driving, which was quite frightening. It turned out to be a faulty fuel pump that couldn't supply fuel to the engine, or old spark plugs failing to ignite. Sometimes, a clogged air filter restricts airflow and causes the engine to stall—I saved some money by replacing it myself. A weak battery with unstable voltage can also cause the car to stop suddenly during startup. I recommend everyone to regularly check fuel levels and fill up before hitting the road, clean the filters every six months to prevent stalling incidents. If the car stalls, stay calm, turn on hazard lights, pull over safely, and inspect—safety comes first. Regular maintenance can extend engine life and avoid the hassle of breaking down midway.
