An illuminated check engine light is an indication that your vehicle isn’t functioning the way it should, but it doesn’t necessarily mean you’re due for a costly auto repair. The light turns on for many reasons, even something as minor as a loose gas cap. See your auto mechanic as soon as possible to be safe. If you’re in Jefferson, OH, you can bring your car to T. Busch Automotive for an expert diagnosis. The shop provides top-quality auto repair and maintenance services including oil change, filter replacement, and brake line repairs.

The next time your check engine light turns on, one of the following may be the reason why:

• Oxygen Sensor Issue: This sensor is responsible for measuring unburned oxygen in your exhaust system. It is often damaged by leaking oil or coolant. Not replacing the sensor in time can lead to decreased fuel economy and damaged spark plugs.

• Spark Plugs Need Replacement: Spark plugs ignite the air-fuel mixture to make the engine run. According to CarMD, around 6.19% of check engine light repairs are due to worn out spark plugs. This part often fails due to old age, damage caused by overheating, or oil contamination.

• Failing Catalytic Converter: The catalytic converter is a major component of the exhaust system that turns vehicle emissions into less harmful substances. This part may fail due to a lack of auto repairs and maintenance, worn piston rings, failed gaskets, or faulty valve seals.

• Damaged Gas Cap: The gas cap seals the fuel tank to maintain internal pressure. It also prevents gas fumes from escaping and becoming a safety hazard. Inspect this part first when the check engine light turns on—it may be that the cap is missing, damaged, or needs tightening.

If you need help figuring out why your check engine light is on, an auto mechanic from T. Busch Automotive will help you out. Schedule your auto repair appointment by calling (440) 576-1971. Visit their website for more information about their services.