On the passanger's side behind the engine, near the intake manifold. Its not for the faint of heart to change out. estimate 4 hours to do. I need to replace mine as well.big_aluminum_wing said:You know, I'll bet it is the PCV valve.... I was gonna change that once but couldn't find it, so I sorta forgot about it. Any ideas where it is or how to get to it? I know it is on the passenger side hidden from view, but that's about all I've got. My service manual isn't much help on this one.