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In a 2015 Chevy Silverado, the knock sensor is located on the side of the engine block, positioned above and to the left of the oil filter housing. This sensor is specifically designed to detect and monitor any engine knocking that may occur. Engine knocking in a truck is commonly caused by using low-quality fuel, which results in incomplete combustion in the cylinder leading to knocking. To prevent this issue, it is recommended to use a higher octane fuel and opt for fuel labeled as top tier, as it contains additives that aid in cleaning carbon and sludge buildup in the engine.
The knock sensor for the 2015 Chevy Silverado is located on the right side of the engine block by the passenger seat.