Drivers who clear a check-engine light only to see it return days or weeks later are not dealing with a glitch. Federal emissions regulations require the onboard diagnostic system to keep running its ...

Although commonly referred to as the “check-engine light,” some cars may instead display the message “Service Engine Soon,” or show a yellow or orange outline of an engine, perhaps with the word ...

Three of the main reasons the check engine light or malfunction indicator lamp (MIL) turns on are: a loose fuel cap, issues with the ignition system, and problems with the emissions system. Many ...

When your vehicle's check engine light (CEL) comes on, it's often a sign that something needs attention. But with over 20,000 parts working together in your car — many important for normal operation — ...

When the check engine light comes on in a vehicle, it’s indicating that there is some issue with the car that should be checked out. It could be something minor, such as the gas cap not being screwed ...

It's pretty easy to dismiss the "check engine" light as just stupid, because, well, it is. I suppose if you thought that the cause of smoke coming from under your hood had something to do with the ...

When the check engine light comes on, you may hesitate taking it to a mechanic who will charge you for a non-problem. Learn what to look for.

To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Understanding the specific actions that need to be taken ...

Out of the many dashboard warning lights that illuminate when starting or driving a modern car, the service engine and check engine lights are most often misunderstood or intertwined. Compounding the ...

Consumer Reports has no relationship with any advertisers on this website. You're driving along in your car or truck and suddenly a yellow light illuminates on your dash telling you to check or ...