If you have a check engine light on, a diagnostic tool is great for troubleshooting the problem. Here's what you need to know ...

One of the few things Americans, nearly unanimously, agree upon is that they should have the right to repair their vehicles, and that independent shops should have access to the copious clues cars ...

Modern cars are basically computers on wheels. With so many electrical systems, sensors, and motors, there’s so much that could potentially go wrong. When something does go awry, pinpointing the ...

A Bluetooth code reader connected to a vehicle. - Maddox/Harbor Freight It's never a good time when one or more dashboard lights decide to turn on. While some dashboard lights are more common and ...

Among the many pesky issues that can confound do-it-yourself mechanics, one of the most simple yet elusive that impacts overall drivability is the common vacuum leak. This is especially true if you're ...

We may receive a commission on purchases made from links. The OBD acronym stands for on-board diagnostics, a system built into modern vehicles that monitors the performance of the engine and other ...

It’s the moment every car owner dreads, especially those of us who own older, out-of-warranty cars: The check engine light pops on. Keep a vehicle long enough, and it’s bound to happen. It happened to ...

I’ve spent enough time around 7.3 Powerstroke trucks to know one thing—they don’t fail loudly, and they rarely explain themselves. Most problems show up as small changes first: a slightly rough idle, ...

As 2026 rolls in, car owners are increasingly done with subscription-based OBD2 scanners that lock features behind monthly fees or app upgrades. If you’ve ever felt annoyed by a “scan now, pay later” ...

When your car needs repairs, few tools are more valuable than an OBD2 scanner. A check engine light only tells you that something’s wrong, but an OBD2 scanner can tell you exactly what it is. The ...

The do-it-all bidirectional tool, TopDon’s ArtiDiag800 BT 2, has leveled up my diagnostics to a pro level at a fraction of the cost. Disclosure: Topdon is a sponsor of LS1-Tech. In the past couple of ...