Engine knocking, or detonation, occurs when fuel in the cylinders ignites unevenly, causing metallic pinging sounds, reduced power, and potential engine damage. Key causes include low-octane fuel, ...

It's a big day. You've finally installed that lumpy cam in your big-block street-stormer, and you're ready for the testdrive. The cam's all broken in, the timing and ...

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

As essential as cars are in the modern world, vehicles and their engines have been regular sources of financial, and thus emotional strain for owners since the very first automobile was invented.

Forbes contributors publish independent expert analyses and insights. Jim Gorzelany is a veteran automotive journalist. This article is more than 4 years old. According to CarMD.com, the national ...