Degradation of the components delivering electrical current to the spark plugs can lead to diminished engine performance. These components, responsible for transmitting the vital spark that ignites the air-fuel mixture, are subject to wear and tear from heat, vibration, and environmental factors. A common indicator of their failing condition is rough idling or a noticeable decrease in fuel efficiency.
Maintaining the integrity of these components ensures optimal combustion, contributing to improved horsepower, reduced emissions, and overall engine longevity. Historically, periodic inspection and timely intervention have proven to be a cost-effective preventative measure, mitigating the risk of more significant engine repairs arising from misfires or incomplete combustion.