What are the causes of engine stalling?

[DeBrayden]

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.

[McZane]

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.

[VonGarrett]

Engine stalling is often caused by several issues: fuel system problems such as clogged fuel filters or pump failure; ignition system issues like spark plug carbon buildup preventing sparks; or air system faults such as incorrect airflow meter readings or pipe leaks. When checking myself, I first examine the battery to ensure sufficient voltage, then listen for the fuel pump sound and test fuel pressure. After replacing the ignition coil, the car starts smoothly with no issues. Regularly clean carbon deposits, inspect wiring, and use high-quality parts to prevent premature damage. If the engine stalls, pull over safely and attempt a restart; if unsuccessful, call for roadside assistance. Neglecting minor issues can lead to major troubles.

[StJuliana]

Having driven for decades, I've experienced stalling a few times, which can be quite dangerous. Insufficient fuel makes the car unable to move, and worn spark plugs prevent ignition. Vacuum tube leaks causing intake imbalance can lead to stalling. Once, stalling on the highway was terrifying—turns out the weak battery made starting difficult. I always add distilled water to clean contacts and save power. I advise young friends to regularly check the engine and turn off lights to conserve energy. Safety first—stop immediately when stalling, sound the alarm, and don't panic. Take your time to fix the issue, and it can be resolved.