The ignition system of a vehicle plays a critical role in starting and powering the engine by generating sparks to ignite the air-fuel mixture. Key components include the ignition coil, distributor (or ignition module), and spark plugs, which work together to create and distribute electrical sparks at precise intervals. Over time, these components can wear out due to heat and electrical stress, affecting engine performance and efficiency. Routine inspection and maintenance are essential to detect issues early, such as misfiring or difficulty starting the engine. Replacement intervals vary, with spark plugs typically needing replacement every 30,000 to 100,000 miles, while other components like ignition coils have longer lifespans. Ensuring a well-maintained ignition system is crucial for reliable vehicle operation, fuel efficiency, and overall engine health.