Hey all.So i recently changed out my pcv on 4.7l..I noticed when it was idling the pcv itself seems to be rattling at a decent pace.Is this normal?Also sometimes it seems at idle i can feel an un smoothness in the engine any ideas?

 

Yes, the PCV can and will vibrate.

Put some new Champion Copper spark plugs in (yes the cheap ones), gap at .040, and call it a day.