What are the reasons why the engine won't start?
1 Answers
The reasons why the engine won't start are as follows: 1. First, it may be an electrical or electronic fault. The phenomenon that occurs is very sudden, without any warning. Electrical faults include: blown fuse, open circuit in the high-voltage coil, open circuit in the low-voltage circuit, detached central ignition wire, leaking distributor rotor, or damaged spark plug. 2. Then, it could be a fuel system fault. Engine stalling caused by fuel system faults often comes with symptoms like weak engine power and the accelerator pedal feeling like stepping on cotton. Possible fuel system fault locations include: fuel pump failure, blocked fuel line, clogged fuel filter, carburetor failure, or damaged injector, etc. Sometimes, the fuel tank may be empty without the owner realizing it. 3. It could also be a mechanical fault. Common mechanical faults include: timing belt (chain) breakage, cylinder leakage with no pressure, etc. The second scenario is when the starter motor doesn't work or barely works. In this case, the first thing to check is the battery. 4. Ignition system failure. Besides the battery, other reasons for the starter motor not working could be a damaged ignition switch, faulty ignition relay, or a damaged starter motor itself. Additionally, check the grounding circuit and fuses. The ignition system provides high-voltage electricity to the spark plugs to ensure the car runs properly. Ignition system failure can also lead to the car not starting. Poor connections in the low-voltage circuit or leaking high-voltage wires can cause ignition system failure. 5. Severe engine carbon buildup. Severe carbon buildup in the car's engine can prevent the car from starting. Many impurities in gasoline, poor fuel quality, or poor sealing of the valve seat can cause carbon buildup. Regularly clean engine carbon deposits and use higher-quality gasoline. 6. Starter motor aging. An aging car starter motor can also cause weak starting or failure to start the car. Therefore, replace the starter motor periodically and avoid using it for too long.
