Modern cars depend on a vast number of electronics, components, and vehicle systems to send us to and from our destinations. Some of those parts are well-known, like the engine, transmission, and ...

Whether you like it or not, your vehicle is filled to the brim with computers. While these computers are a dream come true when everything is working the way it should, they can quickly turn into a ...

There was a time that vehicles didn’t come with sophisticated computer systems. Those cars and trucks used pneumatic and mechanical systems to regulate idle speed, valve timing, and fuel delivery.

What is a PCM in a car? The term PCM stands for powertrain control module, and is a critical piece of equipment within your vehicle, but do you know what it does? Whether you shuttle the kids around ...

A contributor to CarBuzz since April 2025, Ben also was a finalist in The Intercooler Young Writer Compition in 2021, has done a placement with AutoCar, and runs his own independant automotive blog.

The powertrain control module (PCM) in your Jeep Wrangler – often referred to as your engine’s “computer” – acts as the brain of your vehicle’s engine. More specifically, the PCM in your Jeep is ...

When a $60K rig leaves you stranded after a 10-minute errands run, loyalty evaporates. Matt’s 2022 Chevy Silverado just triggered the dreaded PCM "death code," proving that modern tech is failing the ...