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, ...

Knock sensors are devices used in internal combustion engines to detect engine knock or detonation. The knock sensor detects vibrations and sends a signal to the engine control module (ECM), to ...

Q I drive a 2005 Toyota 4Runner SR5 with 85,000 miles on it. Other than routine repairs, the vehicle has been trouble-free for all the years I’ve owned it. About two months ago, the check engine light ...