I found mine unclipped at the top tonight laying back on my MAF sensor relocated just below the throttle body. Must have never been snapped on tight because once I got it on there it won't move. I know it wasn't like that last week. 42k miles!

I also put some tubing on the top rad/condenser mount posts to take out some of the slop in the grommets. Could have torn up my MAP & MAF sensor wiring.

 

Somebody else had this happen. I can't remember who it was, though.

 

i had this happen to me. i just assumed i had accidentally pulled it out when i put my CP on.

 

samething happend to me i put it back on and now it dont move

 

Another thing to check is the Vac line on the Lower CP. It should tuck behind the AC line(I think it was AC) to avoid the fan shroud. A guy had come and that line wasn't behind that AC line and it was rubbing back and forth on the shroud, almost wore into a leak!! Im sure it would have with a lil more time!