Quiz: What is the purpose of the knock sensor in an engine? February 15, 2025 by Alex Turner What is the purpose of the knock sensor in an engine? Discover more about Vehicle Engine and Automobile at our home page. A) To detect engine knock and adjust ignition timing accordingly. B) To measure the temperature of the engine coolant. C) To monitor the level of fuel in the tank. D) To assess the pressure of the oil in the engine. Submit Answer