What Causes a Car Not to Start?
2 Answers
Analysis of car starting failure is as follows: 1. Electrical or electronic failure: The phenomenon occurs very suddenly without any warning. Electrical failures 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 plugs. Electronic failure mainly refers to the malfunction of the central computer control board. 2. Fuel system failure: Stalling caused by fuel system issues often comes with symptoms like weak engine power or a spongy accelerator pedal. Possible fuel system problems include: fuel pump failure, blocked fuel lines, clogged fuel filter, carbon buildup on spark plugs, or damaged fuel injectors. Sometimes, the fuel tank might be empty without the owner's knowledge. 3. Mechanical failure: Common mechanical failures include: timing belt breakage, cylinder leakage causing no pressure, etc.
I've encountered several instances of the car not starting, with the most common issue being battery problems. Especially for older cars that have been driven for three or four years, the battery tends to lose charge. Last time during a cold snap, when I tried to start the car in the morning, I heard a 'clicking' sound, and the dashboard lights were flickering—classic symptoms of a dead battery. When turning the key to the start position yields no response, you can first try starting with the headlights on; if the lights dim, it's definitely a battery issue. A portable car jump starter or jump cables can provide a temporary solution. Remember to check if the battery terminals are corroded with white crystalline deposits, as this can also cause poor contact. By the way, next time if the car won't be used for an extended period, it's best to disconnect the negative terminal of the battery.
