The warning light can return even after an expensive repair. Here’s what your car may be trying to tell you.

The most frequent “check engine light” fix noted in a recent report is to replace the catalytic converter, which costs an average $1,313. It should come as no surprise to anyone who’s been paying ...

A solid check engine light is a "look into this soon" nudge. A blinking one is different.

View post: 1968 Ford Mustang Fastback 363 for Sale With 6,000 Miles Shown CarMD sells an OBDII device for vehicle repair shops and car owners that plugs into a car’s diagnostic port. Because the ...

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 ...

If you've ever seen a port by your car's dashboard that can't charge your phone or provide auxiliary power from your vehicle's battery, there's a good chance that it is an OBD (On-Board Diagnostics) ...

When it comes to the cost of getting a check engine light fixed, it doesn't always just depend on the issue itself, but where you live. So which states can you expect to pay the highest and lowest in ...

Faulty oxygen sensors are still the most common cause of a check engine light, says the the 2017 CarMD Vehicle Health Index released Tuesday. According to CarMD’s findings, model-year 2005 vehicles ...