Has anyone seen and step by step directions to walk me through this. I know I can do it, but i was wondering if i need and "SPECIAL" tools that I dont know about. I realize I will need a intake gasket, I have the 2 sensors already...... Ive looked on the net and have not found much. Thanks in advance

 

read this...great how to
Fix them there knock sensors! - Chevy Truck Forum | GMC Truck Forum - GmFullsize.com

 

Here is a you tube, basiclay the same Country posted.

 

I don't see how so much water and trash get in there!?

 

EXCELLENT READ!!!!!!!! I got this

 

Intake was setting out in the open for several months.

 

Water gets in from when you wash the truck or rain pretty much. The water runs on the back on the intake and down on top of the block and right into knock sensor. Over time it just eats away at it