The world of car diagnostics has changed a lot over the last 50 years. Back in the '70s and earlier, a mechanic's most valuable diagnostic tools were usually their eyes and ears. You could figure out ...

This article was updated in August 2026 with new products and information. A dreaded check-engine light can foretell a whole host of vehicular issues, ranging from cheap fixes to massive overhauls.

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 ...

Our team of experts has selected the best OBDII scanners out of hundreds of models. Don’t buy an OBDII scanner before reading ...

Does a check engine light always mean a mechanic knows exactly what is wrong with a vehicle? A HelloNation article answers ...

We earn commissions from purchases you make using links in our articles. Learn more. If you think about the friends you have in your life, one of the things that makes that friendship work is ...

Automotive diagnostic tools available at Tractor Supply include a Wrightmaster ODBII scanner, an LED testing kit, and a Farm ...

The ongoing modernisation of cars has brought with it many benefits: comfort, refinement, reliability, efficiency… the list goes on. What it’s also led to, though, is ever-greater complexity, and as a ...

Grew up back East, got sick of the cold and headed West. Since I was small I have been pushing buttons – both electronic and human. With an insatiable need for tech I thought “why not start a website ...

We may receive a commission on purchases made from links. If you're a fan of diesel-powered trucks, chances are you've heard of Cummins engines. Although Cummins engines can be found in everything ...

We've all been there—that pesky check engine light pops up on your dashboard. Instantly, thoughts of expensive mechanic bills, weeks of it being repaired in the garage, and inconveniences galore flash ...

Zak is new to the CarBuzz team, working as a freelance content writer. When Zak isn't writing How To articles for CarBuzz he's working as a high school automotive technology instructor. Before ...