What Causes Difficulty in Starting a Car in Summer?

[LondonLynn]

Here are the specific reasons: 1. Battery Depletion: The starter begins to turn but lacks sufficient speed or power, eventually making only a clicking sound without turning. Low temperatures in winter and forgetting to turn off certain electrical devices can prevent the vehicle from starting, especially after prolonged short-distance, low-speed usage in winter, causing the battery voltage to drop below the rated value, making starting and normal operation impossible. 2. Fuel Flow Obstruction: There is no fuel pressure in the engine's fuel supply line. This situation often occurs on extremely cold mornings due to long-term contamination of the fuel lines. At very low temperatures, water mixed with debris can block the fuel lines, resulting in a failure to start. 3. Poor Ignition System Performance: In extremely cold weather, the low intake air temperature causes poor fuel atomization in the cylinders. Combined with insufficient ignition energy, this can lead to cylinder flooding, where excessive fuel accumulates in the cylinders, exceeding the ignition limit concentration and preventing the engine from starting.