Never-ending tale of woe F-150

I might buy that it's a stud, but I always use an OEM filter and correct oil. I changed the plugs myself last year and it sounds exactlyl like the passenger side manifold that cracked last year. Very pronounced on the drivers side. I'll have to take a closer look tomorrow, but I'm betting it's cracked too. They told me the first one was cam phasers a while back, but it kept getting louder. The mechanic pointed right to the crack (because he's seen them before!) so I know the first one was cracked. They gave me the part and only charged me labor. Wonder if I'll get that deal the second time.

Ouy!