Why does the car fail to start when turning the ignition?

1 Answers
CorbinLee
07/24/25 1:35pm
Reasons for failing to start: 1. Battery depletion due to reasons like leaving headlights on for an extended period or the battery reaching the end of its lifespan. It is generally recommended to replace the battery every 2 years. Pressing the horn can help determine if the vehicle has power or not. 2. No oil pressure in the engine fuel supply line, causing obstruction in gasoline flow. This situation often occurs on particularly cold mornings and is caused by long-term dirt accumulation in the fuel lines. When temperatures are extremely low, water and debris mix to block the fuel lines, resulting in failure to start. 3. Due to low intake air temperature in cold weather, the ignition system does not perform well, and fuel does not atomize properly in the cylinders. Combined with insufficient ignition energy, this leads to cylinder flooding, where excessive fuel accumulates in the cylinders, exceeding the ignition limit concentration and preventing the car from starting.
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