Knock Sensor?

I have a 2002 V6 blazer. My brother and I have been searching for the knock sensor all day! The guy at the auto parts store said the one I need to replace is on the drivers side. My Haynes manual is of no help. Please can someone help me find it? if you have pictures that would be amazing! Thanks

i belive its on the block, or behind the distributor. if its behind the distributor i feel awlful sorry for you. had to replace mine there, and i found out ur supposed to lift the engine before u do it, somehow i managed to complete it though.

go to auto parts website and find a photo of the part, or go to store and look at one. It's on the head, either in back or near spark plugs. They move around alot from year to year.