+18 Why Is My Check Engine Light Blinking On And Off 2023. If the check engine light is flashing, it indicates the engine has a misfire or fuel control fault that could damage the catalytic converter. Particularly, in this case, a flashing check engine light unanimously means that there is a misfire in one of your cylinders.

Turn the vehicle on and off three times, a method that, to be clear, only works with certain models. These problems occur when a loose wire disconnects and reconnects; Whenever a check engine light turns on, it's best to schedule an appointment as soon as you can.





