If your check engine light comes on, you don’t need to automatically assume that your engine is nearing total disaster. But you should still promptly visit the shop for diagnostics so that the issue can be pinpointed and addressed before it gets worse. At Carpenter’s Tire & Auto LLC, our local mechanics provide expert computerized auto diagnostics in the greater Meadville, PA area. Then, we can flawlessly complete the necessary repairs. Here are five common reasons that the check engine light turns on.

Catalytic Converter Trouble

The catalytic converter is crucial for reducing harmful emissions by converting pollutants into less harmful substances. A malfunctioning catalytic converter can result in decreased performance and increased emissions, prompting the check engine light to illuminate.

Faulty Oxygen Sensor

One of the most common culprits behind an illuminated check engine light is a malfunctioning oxygen sensor. These sensors monitor the amount of oxygen in the exhaust gasses, helping the engine control module adjust the air-fuel mixture. A faulty oxygen sensor can lead to rough idling and decreased acceleration.

Loose or Missing Gas Cap

It might sound a bit strange, but a loose or missing gas cap can trigger the check engine light. The gas cap seals the fuel system and prevents the escape of vapors. If it's not tightly secured, it can lead to an imbalance in the fuel system, triggering the warning light.

Malfunctioning Mass Airflow Sensor

The mass airflow sensor measures the amount of air entering the engine and plays a crucial role in determining the correct fuel injection. When this sensor malfunctions, it can lead to a rich or lean air-fuel mixture, affecting engine performance and triggering the check engine light.

Ignition System Issues

Issues within the ignition system, such as a failing spark plug or ignition coil, may result in an illuminated check engine light. Faulty spark plugs or ignition coils could lead to misfires.

Check Engine Light Repair in Meadville, PA

When you need auto repair in Meadville, PA and the surrounding area, contact Carpenter’s Tire & Auto LLC at 814-336-4521. Feel free to give us a call today to make an appointment!