What are the reasons for no response when starting a car?

2 Answers
DaisyLee
07/28/25 4:33pm
Here are the specific reasons for no response when starting a car engine: 1. Carbon deposits in the car causing difficulty in ignition. At idle, it may also be accompanied by slight shaking, which can be resolved by cleaning the throttle and fuel injectors. 2. Weak spark plug ignition energy. If spark plugs are not replaced after the maintenance cycle, their ignition energy decreases severely, leading to misfires. 3. Insufficient fuel system low pressure. Low oil pressure in the fuel system directly causes the engine to require a second ignition. Specific checks should include the fuel pressure regulator, fuel pump, fuel filter, and internal pipelines. 4. Battery depletion. This requires jump-starting the car using another vehicle or battery. 5. Incorrect engine timing. Mismatched engine timing or replacing the generator belt in certain engine models may cause the timing to skip, resulting in difficulty starting the engine.
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DiEliana
08/11/25 11:22pm
I've seen too many cases where the car won't start, and it's mostly battery-related issues. An aging battery, drained power, loose or corroded connections can all cause this. First, check if the dashboard lights come on; if they don't, it's almost certainly a dead battery. If the lights are on but there's no response when trying to start, the starter motor might be faulty. Sometimes you can hear a clicking sound but the car won't move, which could indicate a problem with the fuel pump or ignition system. Don't forget to check the fuses—those tiny things can burn out and cause no response. The anti-theft system might sometimes trigger falsely, or the key fob battery could be dead. A simple troubleshooting approach is recommended: check the battery voltage or try jump-starting with another car. Avoid forcing the key, as it can damage the starter. Regular battery maintenance can save you a lot of trouble.
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