Quiz: What does the term ‘engine knock’ indicate, and what are its April 6, 2025 by Alex Turner What does the term ‘engine knock’ indicate, and what are its causes? Discover more about Vehicle Engine and Automobile at our home page. A) Engine knock refers to abnormal combustion in the engine, often caused by low octane fuel or incorrect ignition timing. B) Engine knock is a sign of a clogged air filter, usually due to debris buildup in the engine. C) Engine knock indicates a malfunctioning oil pump that leads to insufficient lubrication. D) Engine knock is the result of a faulty exhaust system that causes back pressure in the engine. Submit Answer
