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What might be the reason for the check engine light in my 2017 GMC Acadia turning on?
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In the 2017 GMC Acadia and other cars, think of the check engine light as a general indicator for problems. It's hard to pinpoint exactly what's causing it without checking the diagnostic trouble codes with an OBD-II scan tool, but here are some common reasons. An issue with the EVAP emission system is often the main culprit in a '17 Acadia, sometimes as simple as a loose gas cap. It may also signal the need for new spark plugs, or issues like a faulty thermostat or oxygen sensor. If you can't test with an OBD-II scan tool, many auto parts stores offer free code readings to help narrow down the issue.
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If the "check engine light" comes on in your 2017 GMC Acadia, it could mean there's a loose gas cap or a more serious problem such as a faulty O2 sensor, a bigger emission leak, or issues with the catalytic converter in your vehicle.
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