The coil boot, also known as the ignition boot attaches the coil pack to the spark plug and helps cover the spark of the coil from the engine.
Ignition coil boot importanceThe coil boot is vital because it links the ignition coil to the spark plug and it is known as the coil-on-plug system. The boot is composed of a rubber-like material or silicone that is susceptible to wear. It is crucial to replace the coil boot with the spark plugs or else it can cause the engine to have problems and performance issues.
Common problems with a worn-out ignition coil bootA worn ignition coil boot can cause an engine to misfire, poor fuel economy, and an increase in emission.