I took my car in to the shop because the "check engine" light was on and found out this was simply due to my gas cap being loose. Why would that set off the warning light? – Louis in Duncan, B.C.

A vehicle’s Check Engine light can turn any car ride into a harrowing experience. As soon as the check engine light ...

I’m the original owner of a 2002 Toyota RAV4. It has about 135,000 miles on it. It’s the best car I’ve ever owned. A few months ago, my check engine light went on. The car was running fine, but after ...

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 ...

Neither black tape nor a magic marker is the solution when your car or truck's check-engine light comes on. When the light, which is shaped like the outline of an engine, illuminates, do not panic!

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Your Check Engine light is shining like a beacon of bad news. What's going on? The ...

I'm the original owner of a 2002 Toyota RAV4. It has about 135,000 miles on it. It's the best car I've ever owned. A few months ago, my check-engine light went on. The car was running fine, but after ...

While your car can’t talk, it communicates with you using chimes, icons, and messages. One icon that you should never ignore is the check engine light. It turns on when the car’s onboard computer ...

You’re driving along in your car or truck and suddenly a yellow light illuminates on your dash telling you to check or service your engine. If you’re like most car owners, you have little idea about ...

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 ...