Your vehicle's O2 sensor plays a significant role in its performance and if it's faulty, it's not something you should ignore. Here's what you need to know.

If you want to know more than one thing, you need more than one sensor. In fact, many engines today have not just two oxygen sensors, but four.

The average age of all vehicles on the road is rising, as are their ensuing repair costs. Today’s cars, trucks and SUVs are ...

The average cost to fix a "check engine" light is at a record high according to a newly released study from CarsMD. Its 2026 ...

CarMD, a leading provider of vehicle health data and technology, today released its 2026 CarMD® Vehicle Health Index™ report, ...

From reading a check engine light to streaming live sensor data, OBD-II diagnostics give drivers and technicians a powerful window into a vehicle’s health. Choosing the right scanner, understanding ...

The average age of all vehicles on the road is rising, as are their ensuing repair costs. getty Today’s cars, trucks and SUVs ...

How do I turn off the MIL (Malfunction Indicator Light) on the dash of my 2014 Jeep Compass? This light is properly called the Malfunction Indicator Light, so it’s kind of like a check-engine light.

Cold starts are the dirtiest moment—Bosch thinks it’s solved them with fire.

There are small actions anyone can take to significantly extend a car’s life.

While the new E15 fuel helps reduce the cost of fuel, will it have a negative impact on vehicles?

The most reliable and affordable used hybrid SUVs under $20,000: the 2016-2018 Toyota RAV4 Hybrid.