An illuminated check engine light doesn’t necessarily mean that your engine is nearing complete failure. But you should still get to the shop for diagnostics so the mechanic can identify and resolve the issue before it gets worse. At Lakeside Tire & Auto, we provide expert check engine light repair in the greater Kresgeville, PA area. Here are five common check engine light triggers. Faulty Oxygen Sensor One of the more common culprits behind a glowing check engine light is a malfunctioning oxygen sensor. These sensors monitor the amount of unburned oxygen in the exhaust system and play a crucial role in optimizing fuel-efficiency. When they fail, your vehicle may experience decreased fuel-economy and increased emissions. Malfunctioning Mass Airflow Sensor The mass airflow sensor measures the amount of air entering the engine and plays a key role in determining the proper air-to-fuel ratio. A malfunctioning sensor can disrupt this balance, leading to reduced fuel-efficiency, poor performance, and an illuminated check engine light. Failing Catalytic Converter A failing catalytic converter is a more serious issue that can trigger the check engine light. Responsible for converting harmful gasses into less harmful ones, a malfunctioning catalytic converter can lead to increased emissions and decreased engine performance. If you notice a drop in performance or a sulfur-like smell, you may have a catalytic converter issue that needs to be addressed promptly. Issues with Spark Plugs and Ignition Coils Worn-out or faulty spark plugs and ignition coils can disrupt the combustion process, leading to misfires and engine performance issues. The check engine light may illuminate to alert you to this problem. Regular inspection and replacement of spark plugs and ignition coils can prevent these issues and help to keep your engine running smoothly. Loose or Faulty Gas Cap If your gas cap is loose or damaged, fuel may evaporate before it is directed toward your engine. While it might seem strange, a loose gas or faulty gas cap is an issue that sometimes triggers check engine lights. Check Engine Light Repair in Kresgeville, PA When you need auto repair in Kresgeville and the surrounding area, contact Lakeside Tire & Auto at (610) 681-7262. At our nearby auto shop, we can expertly address your vehicle’s repair and maintenance needs. Feel free to give us a call today to make an appointment!