Police cruisers look familiar from the outside, but under the hood they are tuned for a very different life than the average ...

Automatic engine stop‑start was pitched as a clever way to trim emissions and fuel bills without changing how people drive. A ...

Positive Crankcase Ventilation—three dirty words, but do they really need to be perceived that way? In general, the PCV system has two main functions: vapor relief and liquid separation. PCV systems ...

The internal combustion engines that power our vehicles have come a long way in the past several decades. Not only have they become more efficient and better for the environment, but car engines have ...

No smoke machine? No problem. Learn how to check for engine vacuum leaks using visual cues, soapy water, and DIY tricks to ...

What if you wanted to get more power than possible from a four-cylinder engine, but with a motor that wasn't as heavy and thirsty for fuel as a six-cylinder mill? The obvious solution for ...

Many car crafters roll their eyes and tune out when bench racing turns to electronic fuel injection (EFI). We're not here to hijack you into believing that EFI is cheap or even simple. Carburetors ...