Anyone know where the PCV valve is located on the 2006 H2 Hummer 6.0 engine?

Thank you. Am I to understand that the part never requires cleaning or replacement... or can only be repaired/ replaced by replacing the entire valve cover? Thanks

It's not really a valve at all anymore. It's basically just a hole in the valve cover where a hose connects to it. It's not something you would need clean regularly unless you suspect an issue, but yes you would have to remove the drivers side valve cover to do so.