A blinking malfunction indicator lamp (MIL), commonly known as a check engine light, signals a serious issue with the vehicle’s engine or emissions system. This illumination pattern indicates that a problem is actively occurring that could potentially cause damage to critical components if left unaddressed. Unlike a solid, constant light, a flashing light represents a more urgent and severe condition.
Ignoring a flashing dashboard warning can lead to costly repairs. The situation often involves misfires that can damage the catalytic converter, a crucial part of the emissions control system. Replacement of a damaged catalytic converter is significantly more expensive than addressing the initial cause of the misfire. Prompt diagnosis and repair prevent further engine degradation and maintain optimal vehicle performance.