Ignition parts are the components in the engine responsible for generating the spark that ignites the fuel mixture in the combustion chamber, starting and running the engine. The key ignition parts include spark plugs, ignition coils, ignition wires, and distributors (in older vehicles). These parts work together to ensure the engine starts and runs efficiently.

Signs that ignition parts may need replacement include difficulty starting the engine, rough idling, reduced fuel efficiency, misfires, or weak acceleration. If the vehicle feels sluggish or shakes during operation, it may indicate worn or faulty spark plugs or other ignition parts that should be inspected.

Spark plugs should be replaced according to the manufacturer’s specifications, typically between 20,000 and 100,000 kilometers, depending on the type and quality. Ignition wires and ignition coils have a longer lifespan but should be regularly checked for wear and cracks. Vehicles used in demanding conditions or under heavy loads may require more frequent replacements.