2004 Silverado 2500HD Knock sensor location???

Does anyone know where I can find the knock sensor on my truck or where I may be able to go to get a diagram???:banghead:

Welcome to AF, what engine?

whoops, its the smaller V-8 runs on regular gas.

FYI, in the future post the exact engine size as the 6.0 and 8.1 engines are 2 different animals. According to my references the knock sensors are under the intake manifold.

Thanks alot, in the future I will be sure to do that. You would not happen to know where I could get a diagram for that by any chance would you?

A subscription to an online manual like Alldata or a factory shop manual. Under the lower intake not the plenum, also.