We may receive a commission on purchases made from links. While it may seem intimidating at first, there are plenty of easy DIY auto maintenance projects that even the most novice DIY-er can handle.

On older vehicles and smaller engines, the carburetor controls the mixture of fuel and air that reaches the engine. Here's ...

Oxygen sensors detect the amount of oxygen in the exhaust. Oxygen sensors usually don’t have a replacement schedule. A bad oxygen sensor can be diagnosed with a code reader or scan tool. A car’s ...

You don’t need any special hacks – but taking a few simple precautions can save you from pain or an infection.

Winter, in many locales, brings with it some amount of snowfall. Thus, figuring out how to keep your driveway and walkways clear becomes a top priority, with the usual suspects of shovels and snow ...

We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are ...

Part 1 in this series covered defrost cycle problems in heat pumps. Now, let's discuss the second major winter issue: heat pumps stuck in one mode. The customer calls and says the system won't switch ...