A check engine light flashing– as opposed to a continuously illuminated check engine light – should never be ignored. A flashing CEL indicates a severe problem, one that requires immediate car repair. In other words, if your check engine light is flashing, pull over and call a tow service.
Continuing to drive your car with a flashing CEL can cause irreversible damage to internal components. A blown catalytic converter – a repair that can cost $2,500 or more – is one result of driving a vehicle with a flashing check engine light. This type of problem can also cause damage to oxygen sensors and other emissions-system components.
Ultimately, an engine misfire is the most common cause of a flashing CEL. Misfires can be caused for many reasons, and we highlight what they are, common causes, and how much engine misfires cost to repair in this short guide.
