Changing the oil is the most common maintenance you'll have to do on your car, but what happens when the check engine light ...

Vehicles have three kinds of oil lights, and each means something different. So when they come on, how long should you wait ...

What Causes the Check Engine Light to Come On? Every vehicle contains many sensors designed to illuminate the check engine light, signaling something is not safe or not operating properly. Many of ...

Top 10 Check Engine Light Causes Replace catalytic converter (s), $1,348 Replace oxygen sensor (s), $254 Replace ignition coil (s) and spark plug (s), $400 Replace mass air flow sensor, $323 ...

Your check engine light can come on for a lot of different reasons, but there are only a few that occur after putting in gas. Here's what we know.

While your check engine light is obviously meant for engine issues, it can often give you clues to problems in other parts of the car as well.

CarMD’s latest study looks at the most common check-engine light repairs and their average costs over the previous calendar year, then ranks the results.

GM TechLink has found a wiring issue in GMC Canyon and GMC Sierra 1500 trucks that can make the check engine light stay on and cause false DTC code returns.

The 2023 to 2024 Chevy Colorado and 2024 Chevy Silverado may have an illuminated check engine light and DTC codes because of a wiring connector glitch, GM says.

A check-engine light could be a gentle reminder or a sign of something catastrophic. We explain what a malfunction indicator light is and what you can do about it.