What Causes Difficulty in Starting the Car but No Issues While Driving?

[CassandraLee]

The reasons for difficulty in starting the car but no issues while driving are low car battery voltage; a malfunction in the fuel supply system; and insufficient spark plug ignition energy. Below is additional information: Specific manifestations: After turning the ignition switch, the engine, driven by the starter, runs for more than 5 seconds but still fails to start. The car battery is an essential part of the vehicle and can be categorized into traditional lead-acid batteries and maintenance-free batteries. Fuel supply system: The fuel supply system is a device used to supply combustible mixed gas. Due to differences in fuel types, the supply methods may vary. The spark plug, commonly known as the sparking plug, is a crucial component of the gasoline engine's ignition system. It introduces high-voltage electricity into the combustion chamber and causes it to jump across the electrode gap to generate a spark, thereby igniting the combustible mixed gas in the cylinder. Components of a spark plug: A spark plug mainly consists of a terminal nut, insulator, terminal stud, center electrode, side electrode, and shell, with the side electrode welded onto the shell.