Cars are more than just oil and steel. Modern models have incorporated electronics and computer chips to help manage and optimize their mechanical components. That means maintaining your car's ...

It happens at the worst time - stuck in traffic or a long road trip - when you see that check engine light flick on. Here's why it may keep returning.

Your vehicle has a problem if the check engine light (CEL) glows. Diagnostic trouble codes (DTCs) stored in the computer help find the cause.

Information is power. And when it comes to cars, information could mean more horsepower. Or better fuel efficiency - even a healthier engine. So says Rex Tokeshi-Torres, vehicle testing technician for ...