The Check Engine light on a car’s dashboard can be very confusing to many drivers. How important is it? What should you do when you see it? And what exactly is it referring to? The light indicates that there is an issue of some nature within what is called the power train. In short, it’s anything in the car that makes the vehicle move. That includes the engine and transmission as well as any all-wheel-drive component that may be present. How severe the problem is can vary widely. Anything from a poorly seated gas cap to an impending transmission failure will make the light go on. It’s triggered whenever the car’s onboard computer runs a series of tests and one or more are failed by a power train component. Sometimes, the light responds to a do-it-yourself fix. But it’s usually better to see your mechanic about it.
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Check Engine Light: What Does It Mean and What Should You Do?