Check Engine Light is On but Car Runs Fine: What to Do
What is the Check Engine Light?
The Check Engine Light (CEL) is a warning light on your car’s dashboard that indicates a problem with the engine or emissions system. When the CEL is on, it means that the car’s computer has detected a problem that could affect the car’s performance or emissions.
Why is the Check Engine Light On?
There are many reasons why the CEL can come on. Some of the most common causes include:
- Loose or damaged gas cap
- Faulty oxygen sensor
- Catalytic converter problems
- Evaporative emissions system leaks
- Mass airflow sensor problems
- Spark plug or ignition coil problems
- Fuel injector problems
What to Do When the Check Engine Light is On
If the CEL comes on, it’s important to take your car to a mechanic as soon as possible. The mechanic will be able to diagnose the problem and recommend the necessary repairs.
In some cases, the CEL may come on and then go off on its own. This can happen if the problem is temporary, such as a loose gas cap. However, it’s still important to have the car checked by a mechanic to make sure that there is no underlying problem.
Can I Drive with the Check Engine Light On?
In most cases, it is safe to drive with the CEL on. However, there are some cases where it is not safe to drive, such as if the car is overheating or if there is a significant loss of power.
If you are unsure whether or not it is safe to drive with the CEL on, it’s best to err on the side of caution and have the car checked by a mechanic.
How to Prevent the Check Engine Light from Coming On
There are a few things you can do to help prevent the CEL from coming on, including:
- Keep up with regular maintenance, such as oil changes and tire rotations.
- Use high-quality fuel.
- Avoid driving in extreme conditions, such as very hot or cold weather.
- Have your car checked by a mechanic if you notice any changes in the way it drives.
Conclusion
The Check Engine Light is an important warning light that should not be ignored. If the CEL comes on, it’s important to take your car to a mechanic as soon as possible to have the problem diagnosed and repaired.
