Q: The check engine light came on at 40,000 miles. on 2004 Mercury Grand Marquis

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Is the check engine light triggered at 40,000 miles, and if so, how do I turn it off?
(2) Answers
i think something wrong with your engine,
you should get a car diagnostic tool for your car,
maybe this tool can suit for your car,
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