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Q: Car running and idling rough

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The Check Engine light is on, and my car is running and idling rough.

Hello. It is possible that your vehicle would need a complete tune up and/or a Check Engine Light inspection. I would have a certified mechanic scan your vehicle’s computer for codes to diagnose your Check Engine Light. These codes may be relevant to the rough idle. The mechanic will be able to determine the cause of your car’s rough idling issue.

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