What could be the reason for a normally running engine suddenly stopping?
2 Answers
It might be due to a malfunctioning sensor or a non-operational fuel pump, which requires diagnosis with a professional automotive decoder. Specific details are as follows: 1. Automotive Engine: It is the device that provides power to the vehicle, acting as the heart of the car, determining its power, fuel efficiency, stability, and environmental friendliness. Depending on the power source, automotive engines can be classified into diesel engines, gasoline engines, electric vehicle motors, and hybrids, among others. 2. Working Principle: A four-stroke gasoline engine mixes air and gasoline in a certain proportion to form a good mixture, which is drawn into the cylinder during the intake stroke. The mixture is then compressed, ignited, and burned to generate thermal energy. The high-temperature and high-pressure gases act on the top of the piston, driving it to perform reciprocating linear motion, thereby outputting mechanical energy externally through the connecting rod, crankshaft, and flywheel mechanism. A four-stroke gasoline engine completes one working cycle during the intake stroke, compression stroke, power stroke, and exhaust stroke.
After driving for so many years, I've encountered engine stalling a few times. The most common issue is fuel-related, such as a faulty fuel pump or clogged fuel line, where the engine naturally shuts down due to lack of fuel supply. If you forget to refuel and the tank runs empty, the same thing happens. Then there are electrical system failures, like a dead battery or alternator failure, cutting off power to the engine. Ignition problems, such as burnt spark plugs or faulty ignition coils causing misfires, can also lead to stalling. Mechanical failures, like a snapped timing belt, can directly cause the engine to seize; or if the engine overheats, the protection system may intervene and force a shutdown. All these situations require careful handling. If they occur, immediately turn on hazard lights, pull over safely without panicking, quickly check fuel levels and battery status, and avoid forcing a restart if unsure. Get to a repair shop promptly to prevent further damage. Regular maintenance is advised—change oil and inspect components periodically to prevent issues before they arise. Safety always comes first.
