What Does the Car Engine Light Mean?
The car engine light, also known as the check engine light, is a warning indicator that appears on the dashboard of your car when the engine control module (ECM) detects a problem with the engine or its emissions control systems.
When the engine light comes on, it’s important to take your car to a mechanic as soon as possible to have the problem diagnosed and repaired. Ignoring the engine light can lead to more serious problems down the road, and it can also affect your car’s fuel economy and emissions.
Causes of the Car Engine Light
There are many different causes of the car engine light, including:
- Loose or faulty gas cap
- Oxygen sensor problems
- Spark plug or ignition coil problems
- Mass airflow sensor problems
- Catalytic converter problems
- Evaporative emissions system problems
- Engine misfires
- Low coolant levels
- Low oil pressure
- Electrical problems
What to Do When the Car Engine Light Comes On
If the car engine light comes on, there are a few things you should do:
- Check your gas cap. A loose or faulty gas cap is one of the most common causes of the car engine light. Make sure the gas cap is tightened securely.
- Have the code read. You can have the code read at most auto parts stores for free. The code will tell you what the problem is and where it’s located.
- Take your car to a mechanic. If the code indicates a serious problem, you should take your car to a mechanic as soon as possible to have it diagnosed and repaired.
How to Prevent the Car Engine Light from Coming On
There are a few things you can do to help prevent the car engine light from coming on, including:
- Keep up with regular maintenance. Regular maintenance can help prevent many of the problems that can cause the car engine light to come on.
- Use high-quality fuel. Using high-quality fuel can help prevent problems with the oxygen sensor and other emissions control systems.
- Avoid driving aggressively. Aggressive driving can put a lot of strain on your car’s engine and emissions control systems.
By following these tips, you can help keep your car’s engine running smoothly and prevent the car engine light from coming on.
