hmmm..?
 

hello all,
dumb question..but what is this? :propeller: is it always exposed? because i dont remember that, but it could be just a brain fart :gnonespet:
https://www.chevyhhr.net/gallery/fil...0902-00006.jpg

thanks for your imputs :bow:

Since you don't state where this picture is taken from, I'll take a guess.

It's a "Thingamajig".

Add an arrow or something......

Thumbeam Jet Energizer

oopss sorry, posted wrong picture, hopefuly this one clears it up
https://www.chevyhhr.net/gallery/fil...0902-00005.jpg

just dont remember it being exposed..but maybe it always was

It is exposed unless leave the engine bay cover on, in which case its still partially visible. I believe its for EGR but Im not 100% sure