Where are the knock sensors located on your 5.3L 2006 Chevy silverado?

On a 2006 Chevy Silverado with the 5.3L engine, the knock sensors are typically located on the engine block, near the cylinder heads. There's usually one on each side of the engine, though it's not always symmetrical.

To be precise, you'll need to consult a repair manual specific to your year and engine. A Haynes or Chilton manual, or even a digital version from a site like AllDataDIY, will show you exact locations with diagrams. Searching online for "2006 Chevy Silverado 5.3L knock sensor location" with images might also yield helpful results. However, rely on a proper repair manual for accuracy before attempting any work on your engine.