3 Most Common Causes of a Check Engine Light and How to Fix Them

The dreaded check engine light is an unwelcome sight for any vehicle owner. It’s a small but powerful indication that something might be amiss under the hood. While the root causes can range from minor issues to major repairs, understanding the most common ones can help you address them promptly and efficiently. Not only can this save you money, but it can also ensure that your car remains on the road, performing at its best.

1. Faulty Oxygen Sensor

A faulty oxygen sensor is one of the most prevalent reasons for the illumination of the check engine light. The oxygen sensor plays a crucial role in measuring the amount of unburned oxygen in a car’s exhaust system and sends this information to the engine’s computer. When it malfunctions, it can lead to increased fuel consumption and higher emissions. According to Openbay, there are 240 million cars on the road, with 80% of them in the maintenance/repair phase. Addressing such common issues is crucial. Replacing the faulty sensor is the typical fix, and it can improve your car’s fuel efficiency and performance, keeping your vehicle in optimal health.

2. Loose or Damaged Gas Cap

Believe it or not, a loose or damaged gas cap is another frequent reason behind the check engine light. This small yet vital component ensures that there is no leak in the system that captures fuel vapors, helping maintain proper pressure. If your light turns on, checking the gas cap for tightness or damage is a quick first step. If needed, replacing the gas cap is simple and inexpensive, and it could save you a trip to the mechanic.

3. Catalytic Converter Issues

The catalytic converter, a crucial part of the vehicle’s exhaust system, is responsible for converting harmful gases into less harmful emissions before they are expelled from the car. When it fails, due to reasons like neglecting regular maintenance, it can trigger the engine light. Addressing this problem not only helps improve vehicle emissions but also avoids potential costly repairs. Regular vehicle maintenance and swift repairs on issues like oxygen sensors can help prolong the life of your catalytic converter.

Handling the check engine light promptly and understanding its common causes can save you time, stress, and money. Whether it’s a simple fix like tightening the gas cap or a more involved repair, taking action ensures that your car stays in peak condition. With so many vehicles in the maintenance phase, being proactive about these issues not only keeps your car running safely and efficiently but also contributes to a cleaner, healthier environment for everyone on the road. Schedule an appointment for your car today with Chase Automotive!