Where is the knock sensor located in a 1989 Chevy K-3500 with a 7.4?

In a 1989 Chevy K-3500 with a 7.4-liter engine, the knock sensor is located on the engine block, typically on the driver's side, near the oil filter. It is positioned on the lower part of the engine, attached to the block to detect vibrations caused by engine knock. For precise identification, refer to the vehicle's service manual, as the exact location can vary slightly depending on the specific configuration.