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, ...

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.

Federal safety regulators are scrutinizing General Motors again after reports that a previous recall repair did not stop ...