When your check engine light comes on, here is what you should do:
- Check the severity of the light :
- If the light is flashing or red, this indicates a serious problem. You should immediately reduce your speed, minimize engine load (stop towing if applicable), and pull over safely to turn off the engine. Arrange to have your vehicle towed to a mechanic as continuing to drive can cause severe damage
* If the light is steady or yellow/orange, it is less urgent but still requires prompt attention
- Check for obvious issues :
- Ensure your gas cap is tightly secured, as a loose or faulty gas cap is a common cause of the check engine light
* Look at your dashboard gauges for signs of low oil pressure or overheating, which require immediate stopping
* Inspect the battery, alternator, fan, serpentine belt, and electrical connections if possible, as these can also trigger the light
- Monitor the vehicle's performance :
- If you notice loss of power, strange noises, vibrations, or reduced fuel efficiency, do not delay getting the car checked
* If the car seems to run normally, you can drive cautiously to a repair shop but avoid long trips
- Get a diagnostic code reading :
- Have a mechanic or use an OBD-II scanner to read the trouble codes from your vehicle’s computer. This will identify the specific problem causing the light to illuminate
* Repairs can range from simple fixes like tightening the gas cap to more costly repairs such as replacing the catalytic converter or oxygen sensor
- Do not ignore the light :
- Ignoring the check engine light can lead to more serious damage and expensive repairs over time
In summary, treat a flashing or red check engine light as an emergency and stop driving immediately. For a steady light, check simple issues like the gas cap, monitor your vehicle’s behavior, and schedule a diagnostic check with a qualified mechanic as soon as possible to prevent further damage
