6 Reasons Why Your Check Engine Light Is On

For many car owners, the sight of the check engine light illuminating on the dashboard can be a cause for concern. While it’s essential not to panic, it’s equally crucial to understand the potential reasons behind this warning. At Truman’s Automotive & ADAS Calibration, we’ve encountered numerous causes for the check engine light, and we’re here to shed some light on the most common ones. If you’re in the Des Moines Metro area, especially Altoona, Iowa, and are looking for experts you can trust, we’ve got you covered.

1. Faulty Oxygen Sensor: The oxygen sensor measures the amount of unburned oxygen in your car’s exhaust system. A malfunctioning oxygen sensor can lead to decreased fuel efficiency and increased emissions. Discussion Forum
2. Loose or Damaged Gas Cap: Something as simple as a loose gas cap can trigger the check engine light. The gas cap helps maintain the fuel system’s pressure and prevents fuel vapors from being released into the atmosphere.
3. Bad Catalytic Converter: The catalytic converter helps convert harmful carbon monoxide into harmless carbon dioxide. If it fails, your car won’t pass an emissions test, and your vehicle’s performance may decrease.
4. Malfunctioning Mass Airflow Sensor: This sensor measures the amount of air entering the engine to determine how much fuel is needed for optimal efficiency. A faulty sensor can lead to reduced fuel economy and engine performance.
5. Spark Plug Issues: Worn or fouled spark plugs can cause misfires, reduced fuel efficiency, and decreased acceleration. Regular maintenance can prevent spark plug-related problems.
6. Failing Ignition Coil: The ignition coil helps ignite the fuel and air mixture in the combustion chambers. A malfunctioning coil can lead to engine misfires and reduced power.

What to do if your check engine light is on

If your check engine light is on, it’s essential to address the issue promptly. Ignoring it can lead to more significant problems down the road. At Truman’s Automotive & ADAS Calibration, we pride ourselves on first-class customer service, transparent repairs, and state-of-the-art equipment. Our ASE Master Certified Technicians ensure that your vehicle is properly serviced and well maintained. For all your car needs in the Des Moines Metro area, trust Truman’s Automotive.

Remember, while the reasons mentioned above are common, the check engine light can be triggered by various issues. It’s always best to consult with professionals who can accurately diagnose and address the problem. If you’re searching for “car repair near me” in the Des Moines Metro area, look no further than Truman’s Automotive & ADAS Calibration.

Note: Always consult with a professional mechanic or automotive expert when addressing issues with your vehicle.