What would make your check engine light blink on a 2002 Chevy blazer?

A blinking check engine light on a 2002 Chevy Blazer typically indicates a serious issue, such as a misfire in the engine that could lead to potential damage. Common causes include faulty spark plugs, ignition coils, or fuel injectors. It’s crucial to address this promptly, as continued driving could harm the catalytic converter. A diagnostic scan can help identify the specific problem.