Well recently ive been listening to my truck with the windows down and music off. I may be getting paranoid with all these sounds I hear like most 6.0 owners lol. Anyway There is this tick/knock going on. It goes while its running and parked and this tick/knock goes faster while driving depending on while the rpms are going higher and lower. This sound is driving me crazy. Ive been looking around for answers but I haven't found one while this sound was going on while parked and running. So i'm hoping some experts here can help me out. Also, before I forget, I had put a new ficm from ford and had it reflashed about a month ago. Its all pretty much stock besides an EGR delete from sinister. Thanks.