Looks like I have a GEN4 6.0 on my 2008 3500 where are the Knock sensors located on this motor down below or are they all under the intake manifold?

thanks

 

Charm shows valley.
https://charm.li/Chevrolet/2008/Expr...sor/Locations/

 

Miracle of miracles I think mine are down below on the block
can someone look at these pics and confirm
have these on both sides, one is in front of the starter , seems to match some videos showing where to change them....

 

That looks like this to me (as you say gen 4). Maybe charm had the wrong info for your year... Get what you pay for lol.
https://lemon-manuals.la/Chevrolet/2...l%20Procedure/

 

Headed to Napa for the part and will update in a few hours
fingers crossed that is it

 

Just confirming on my 2008 express 3500 with 6.0 the knock sensors are below not under the intake on my van, hope that helps someone else

In those pictures are the covers for the knock sensors

 

To update this turned out not to be the sensor but the wiring harness worn through more toward the front of the motor

ordered some products called cable tie links to get all these wiring sections secured better and keep wires from getting rubbed
side note they have the kits but one get one free right now
think these will be very usable on older cars