Why Is the Engine Light On in My Car?
The engine light, also known as the check engine light or malfunction indicator lamp (MIL), is a warning light that illuminates on the dashboard of your car when the engine control unit (ECU) detects a problem with the engine or emissions system.
There are many different reasons why the engine light can come on, from minor issues to more serious problems. Some of the most common causes include:
- Loose or damaged gas cap
- Faulty oxygen sensor
- Spark plug or ignition coil problems
- Catalytic converter issues
- Engine coolant problems
- Transmission problems
If the engine light comes on, it’s important to have your car diagnosed by a qualified mechanic as soon as possible. Driving with the engine light on can damage your car’s engine and emissions system, and can even lead to safety problems.
What to Do if the Engine Light Comes On
If the engine light comes on, you should do the following:
- Pull over to a safe location and turn off the engine.
- Check the gas cap to make sure it is tight.
- Restart the engine. If the engine light goes off, you may be able to continue driving, but it’s still important to have the car diagnosed by a mechanic as soon as possible.
- If the engine light stays on, do not drive the car. Call a tow truck and have the car towed to a mechanic.
How to Avoid Engine Light Problems
There are a few things you can do to help avoid engine light problems, including:
- Get regular oil changes and tune-ups.
- Use the correct octane fuel for your car.
- Avoid driving with a low fuel tank.
- Have your car inspected by a mechanic at least once a year.
By following these tips, you can help keep your car running smoothly and avoid costly repairs.
