Why is My Check Engine Light on?

Check Engine LightYour car’s indicator lights are there to help you know when any of the complex systems running behind the scenes may need to be serviced or repaired. So, what does it really mean when you car’s check engine light comes on? While the check engine light is certainly a cause for concern, the situation isn’t always dire. We’ve included some a list of some of the top reasons your light may be coming on.

  • Gas Cap: The most common reason your check engine light may come on is due to a loose or incorrectly replaced gas cap. Try tightening you gas cap and see if the light resets itself.
  • Spark plugs: If your light has come on, make sure to check your spark plugs and plug wires. If these parts are damaged, they will trigger your check engine light. They may also cause your car to fail an emissions test. Repairing this pieces quickly is your best course of action.
  • Oxygen Sensor: If your oxygen sensor is dirty or faulty, it will trigger the check engine light. Have a mechanic help you replace this part as soon as possible.
  • Catalytic Converter: If your catalytic converter is damaged, your car will not pass an emissions test and will offer reduced performance. Quick repairs are recommended.
  • Mass Airflow Sensor: Your mass airflow sensor helps your car’s computer regulate the fuel and air mix. If your check engine light is coming on due to a faulty mass airflow sensor, your car will likely be stalling and show a decrease in gas mileage. It’s important to repair this part right away.

If your check engine light comes on, there’s no need to panic. Simply contact the friendly team at Arbor Auto Works and we will help you diagnose the reason your light is on and help you get the proper repairs right away.

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