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What could be the reason my 2015 Chevy Cruze has the check engine light illuminated?
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★ Top Answer
If the "check engine" light comes on in your Chevy Cruze, it's often due to an emissions leak. Look out for the smell of gas and a decrease in fuel efficiency. One common culprit is a loose gas cap, which can be resolved by tightening it. Another potential cause might be a malfunctioning fuel tank pressure relief valve. If the car recently had an oil change, loose components like the oil filter, filler cap, or poorly inserted dipstick could trigger the warning. Excessive starting and stopping may strain the catalytic converter, so driving at highway speeds for 15-20 minutes could help clear the CEL. If these steps don't work, there could be issues with the transmission, O2 sensors, or spark plugs, and a technician should use an OBDII scanner to diagnose the problem.
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Although the check engine light may illuminate for various reasons, the most common cause is typically a loose or damaged gas cap.
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