Engine knocking, or detonation, occurs when fuel in the cylinders ignites unevenly, causing metallic pinging sounds, reduced ...

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 ...