When the check-engine light snaps on, it is not a suggestion, it is your car’s way of saying something in the powertrain or emissions system needs attention. I see it as an early warning system that ...

The “check engine” light is the most annoying orange icon in America. Half the time the car feels fine, and the other half ...

We may receive a commission on purchases made from links. The check engine light is one of those dashboard warning lights drivers dread to see suddenly come on in the middle of driving. First-time car ...

In order for our cars to carry us to and from our various destinations reliably, all the parts must work together smoothly. The fuel and air intake systems provide the ingredients necessary to power ...

Here are 2025's most popular questions and answers from The Journal's Car Doctor column, from rotating tires to oil changes.