Seeing your vehicle's check-engine light come on can throw a wrench in your travel plans. It can also feel a little scary: Does it mean your ride is headed for the scrapyard? Or is there a simple fix?

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Modern cars are technological marvels, and understanding what’s happening under the hood has never been ...

Your check engine light can come on a host of reasons, ranging from a loose gas cap to a faulty engine component. If you see a light illuminated on your dashboard, you can use an OBD2 scanner to ...

We earn commissions from purchases you make using links in our articles. Learn more. If your car or truck’s check engine light is on, there’s a stumble when accelerating, or if the transmission just ...

While the purpose of an OBD2 scanner can prove invaluable in diagnosing a vehicle’s issues, the cost of entry varies widely. How much you spend on an OBD2 scanner depends on your specific needs and ...

“Helped me dx and solve a problem the first time I plugged it in.” Plugging a scanner into the OBD2 port under your steering wheel is one of the first steps a mechanic will take to diagnose customer ...

Every serious gearhead knows that the right USB gadget can turn a cluttered garage into a smart, efficient workshop. From pinpointing engine faults to keeping tires and batteries in top shape, compact ...

There it is. On your dashboard. Staring at you, mocking you, making you plot insurance fraud: your car’s check engine light. That little bugger has been on your dash for weeks now and you haven’t been ...