My Check Engine Light Just Came On - Now What?

Your car's engine is typically its heart. In the case that it comes on, then you need to do something about it. The behavior of the light depends on the problem. The lights can either stay illuminated or keep blinking, in the latter case then it means the car needs immediate attention.

How it Works

The check engine light is turned on by your car's diagnostic computer system when it detects a problem that is or will affect the car's functionality.

Together with other warning lights like the seatbelt symbol and fuel symbol light, the check engine light comes on every time the car starts. Don't be bothered by this, it is normal however, if the light stays on then there may be a serious issue.

The 5 common reasons why your Check Engine Light came on

  1. Gas Cap Issue: This is one of the easiest and cheapest ones to fix. Check if the gas cap is loose and also check if it is missing or damaged. If not fixed, you will lose a lot of fuel to the atmosphere.
  2. Malfunction of the Oxygen Sensor: Another common issue is when the oxygen sensor fails. Failure to fix this means that your car will burn more fuel than it needs to and it will therefore be uneconomical.
  3. A Bad Catalytic Convertor: When the convertor malfunctions, this means that your car will run hot. The car will also be releasing a lot of emissions to the atmosphere and therefore will be hazardous to the environment.
  4. Spark Plug Malfunction: When not fixed, these may cause the catalytic convertor to be clogged. They may also cause damaged ignition coils and oxygen sensor issues.
  5. Aftermarket Alarm: If the aftermarket alarm system you have installed for security purposes is not compatible, the check engine light will stay on.

Some reasons that may cause the Check Engine Light to turn on don't render your car immobile however, get the car checked.

If you need check engine light repair, we invite you to bring your vehicle into our repair shop today!

Community Auto is committed to ensuring effective communication and digital accessibility to all users. We are continually improving the user experience for everyone, and apply the relevant accessibility standards to achieve these goals. We welcome your feedback. Please call Community Auto (970) 484-7556 if you have any issues in accessing any area of our website.