If you hear a knocking sound coming from your diesel engine, the most likely culprit is the fuel injectors. If the fuel injectors are not properly lubricated, they can mistime the fuel releases ...

They test the engine, and it has an unmistakable sound that doesn’t seem to be the hallmark of a healthy engine. Dave says, “Sounds like a timing chain,” and the other mechanic agrees.

Hear What the New Dodge Charger With Actual Engine Noise Sounds Like Caught while filming what appears to be a commercial, this Charger Sixpack reveals its internal-combustion song.

This phenomenon is called knock, detonation, or ping. Sure, severe knock might sound like harmless, distant, crackling, but it can crack pistons or blow head gaskets.