What are the reasons why a car won't start?
2 Answers
Here are the specific reasons why a car won't start: 1. Carbon buildup in the car: Accompanied by slight shaking at idle, cleaning the throttle and fuel injectors can solve the problem. 2. Weak spark plug ignition energy: Not replacing the spark plugs after the maintenance cycle leads to a severe drop in ignition energy, causing misfires. 3. Insufficient fuel low pressure: Low oil pressure in the low-pressure fuel line directly causes the engine to require a second ignition. Specifically, check the fuel pressure regulator, fuel pump, fuel filter, and internal pipelines. 4. Dead battery: You need to jump-start the car using another vehicle or battery.
I've encountered the issue of a car not starting many times, and based on my experience, it mainly boils down to these reasons. The most common is battery problems, such as forgetting to turn off the lights or the AC fan when parking, which can drain the battery overnight. Another issue could be a faulty starter; when turning the key, you only hear a clicking sound but the engine doesn't respond. Fuel system problems shouldn't be overlooked either, as a broken fuel pump or clogged fuel injector can lead to insufficient fuel supply. Ignition system failures also need to be checked, as severely carbon-fouled spark plugs or aged high-tension wires may prevent the engine from starting. Lastly, don't forget to inspect the key and anti-theft system. A friend of mine once experienced recognition failure due to low battery in the remote key. For older cars, mechanical issues like engine carbon buildup or a broken timing belt should also be considered.
