Ongoing self maintenance I read about the PCV valve in my book, and so went after it, what I found is nothing much what I see pictures of online, all I can find online also thought is 4.0L I'm driving a 2003 Explorer Eddie Bauer V8 4.6L Ok onto the pictures! Here is the page in the Chilton book Here is under my hood, looks right Out with half a twist and that is it? Hollow? This is where it came from This is where the hose leads to This is the other cover side, to show whats on it So is this Really the PCV valve? why are all the ones I see online having metal or a spring or some smaller inside? Appreciate any input!