Has your check engine light started illuminating all of a sudden?
The check engine light is a warning that your car has a problem. It could be a minor issue you can fix yourself or a big problem requiring attention.
This article shares some of the reasons why your CEL is illuminating.
1. Loose Fuel Cap
You might have just left the petrol station to get some juice for your ride, but the CEL came on. In this case, the culprit could be a loose fuel cap. A loosely fitted fuel cap is the most common cause for the CEL to come on. To solve the problem, ensure the cap is closed tightly to prevent vapour from escaping.
2. Fuel System Problems
Another cause for the CEL is fuel system problems, which can vary. It could be that the fuel is contaminated or your vehicle is not getting enough fuel. Another problem could be a bad oxygen sensor, so you must replace it. Exhaust leaks and a bad catalytic converter could also trigger the check engine light, so have them checked and replaced if necessary.
3. Wiring Issues
Your vehicle has a complex wiring system, and any damage or loose connection could be why your CEL is on. In this case, you need to call in a wiring specialist to fix the problem. It is recommended that you use a professional car diagnostic machine as it can point exactly where the problem is instead of guesswork.
The above are the most common causes of the check engine light coming on. Other reasons could be problems with your cooling system, transmission issues, or old/contaminated engine oil. If it’s not the fuel cap, it’s always advisable to seek help from an experienced mechanic to prevent further damage to your car.