How sure are you it's a valve cover? These are known to leak from the oil cooler in the V of the motor which then fills and flows out the backside and down and can look like a valve cover or rear main seal.

 

That was the first thing I looked at however, the valley appears to be dry. The only area I can see that may be leaking is the valve cover gasket. I can see oil around the back two bolts by the gasket and around to the back. Not sure if it is something in the rear of the valve cover but if it is like the PCV valve, I'll still have to remove the cover.

Thanks for the reply. Any other suggestions?

 

You can replace the PCV without removing the cover, in fact in the sequence for removing the cover, the PCV has to come out first as it slips over the end of the camshaft and bolts to the outside. But if you are going to remove the PCV, then you may as well do the cover gaskets too. I will advise that since you will have the covers off, please check your rocker arms while you have access to them. The 3.6 is known for the Pentastar Tick which is where the rocker arm bearings wear out prematurely and eventually allow enough slop to get misfires and wear down the camshaft lobes.

 

Will do. Thank you