The check engine light has always been a bit of a gamble. Sometimes it’s a loose gas cap. Other times, it’s a four-figure reminder that modern cars are way more complex than they need to be. What’s ...

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

Today’s cars and trucks are literally rolling test beds of technology, which has tended to make the days of the so-called shade tree mechanic and eyeball diagnoses of what ails a given model a distant ...

That Check Engine light can mean so many different things, as can any noticeable difference in your car's performance or weird sounds. Fortunately, there are ways to narrow down the problem using ...

U.S. drivers are facing record-high check engine repair costs driven largely by aging vehicles. The most common repair — replacing a catalytic converter — can cost more than $1,300. Average vehicle ...

Without a diagnostic tool, it's challenging to determine what is wrong with your car and whether to keep driving when a solid check engine light turns on.

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 ...