So not like I saw this one coming as I have had nothing but issues with my truck. It is down on power like undrivable down on power. No codes and a taping or ticking noise in the drives side head. I listened with a scope and I hear nothing on the 3 cylinder back drivers side. I am thinking bent valve? or something. This happened a few months back and I just parked the truck. So now I am sick of driving my express van everyday. I should note that this truck has a 2009 longblock in it. Any advice? I was thinking of pulling the valvecover but I just havent done it yet.