What are the reasons why a car cannot start?
2 Answers
Reasons why a car cannot start are as follows: 1. The battery is dead. If the trunk is not completely closed, the trunk light will stay on and drain the battery, making the car unable to start. 2. The spark plug fails to ignite. Spark plugs are prone to damage, and a short circuit in the high-voltage line can cause the spark plug to fail to ignite. Poor-quality spark plugs can also prevent normal starting. 3. Starting circuit failure. When starting, there is only a slight "click" sound with no further response, which is caused by a stuck starter relay. In this case, pressing the tail of the solenoid to force it forward can connect the starting circuit, allowing the engine to start.
I often encounter the problem of my car not starting, and the most likely culprit is the battery. It could be that you forgot to turn off the headlights or the car hasn't been driven for a long time, leading to a drained battery. A typical sign is hearing only a clicking sound with no other response when trying to start the car. Check if the battery terminals have green corrosion, and try cleaning them thoroughly with a wire brush. This issue occurs more frequently in cold weather because low temperatures reduce battery performance. For an emergency fix, ask a friend to help jump-start the car with jumper cables, and remember to replace the battery once it's running. Also, check if the alternator is working properly, as it's responsible for charging the battery—if it fails, the car won't run for long. Additionally, regular battery life checks can prevent issues; generally, replacing it every two years is a safe bet. Don’t forget to test the voltage—if it’s below 12V, replace it without delay.
