Vehicle Questions and Answers
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The Check Engine Light, known as CEL, in your 2015 Ford Expedition serves as a warning indicator for issues with your vehicle's emissions system. It can range from a minor issue like a loose gas cap to more serious problems such as a faulty O2 sensor or a blown head gasket. Start by inspecting the gas cap, as the ECM checks the gas tank pressure to prevent fuel vapor leaks. If that's not the issue, a defective O2 sensor is often the next likely culprit. To pinpoint more complex problems, consider using an OBD2 scanner, which can be purchased online for less than $50. This tool will provide detailed information about the error code, allowing you to identify and address the specific issue.
If the "check engine light" comes on in your 2015 Ford Expedition, it could mean a loose gas cap or a more significant problem such as a faulty oxygen sensor, a larger emissions leak, or issues with the catalytic converter in your vehicle.