What are the effects of prolonged idling in a car?

[EmmaLynn]

Prolonged idling in a car has the following effects: 1. Carbon buildup. When the engine idles for a long time, the throttle opening is very small, and the fuel injector sprays a high concentration of fuel to keep the engine running. Therefore, idling itself is more likely to cause carbon buildup than high-speed driving. 2. Shortens the engine's lifespan. During idling, the temperature and pressure in the cylinders are relatively low, prolonging the preparation time for fuel ignition. Additionally, the sealing of the cylinders decreases, making it easier to produce knocking sounds, which shortens the engine's lifespan. 3. Damages the catalytic converter. Prolonged idling results in a high concentration of the air-fuel mixture in the engine, with low oxygen content in the exhaust. The unburned mixture may combust at the catalytic converter, potentially damaging it. Additional information: Here are some details about car engines: 1. A car engine is the device that provides power to the vehicle, determining its performance, fuel efficiency, stability, and environmental friendliness. 2. Car engines can be categorized into diesel engines, gasoline engines, electric motors for electric vehicles, and hybrid systems.