Which part's malfunction could manifest as stalling in an engine?

When considering the causes of engine stalling, a dirty throttle body is indeed a potential issue, but several factors can contribute to this problem. A dirty throttle body can restrict airflow into the engine, leading to an improper air-fuel mixture. When the air-fuel mixture is unbalanced, it can cause the engine to stall, especially when idling or starting from a stop.

While a dirty throttle body can lead to stalling, other issues like defective spark plugs, an empty fuel tank, and faulty ignition coils also play a role in engine performance. Defective spark plugs can result in misfiring or rough running, which may lead to stalling. An empty fuel tank, on the other hand, would directly stop fuel from reaching the engine, causing it to stall due to fuel deprivation. Faulty ignition coils disrupt the spark needed for combustion, resulting in a failure to ignite the fuel-air mixture effectively, which can also lead to stalling.

Understanding the role of a clean throttle body is crucial, as it ensures that the engine receives the correct airflow for combustion. Regular maintenance can prevent buildup that impairs the engine's operation, reducing the risk of stalling.