Hi,
i replaced my heater core in my 86 Camaro irons. In order to do that, I removed my dash pad. Subsequently, I am installing everything and have no clue where did I remove this part on picture. Does anyone know what is it and/ if is a critical part that I should re- installed?

thank you so much, and appreciate an help or suggestions.

 

Looks like air vent for air to enter the dash vent and into cabin. It's been a long time since I've had a dash apart but I think it goes on top just under dash pad. Run on sentence

 

Goes under the dash pad, supplies air to the small side vent.

 

Thank you! I know now where it goes...

 

Re-Install it.

Obviously; you will not have any air flow from that VENT if it's not but back in place. However; If you don't install it you should expect poor Air flow from all the other vents when the VENT option is selected. Not installing it will also heat - or cool - the dash housing, dash harness, and dash pad in a non-expected way and that (heat ) could really cause problems. ( brittle dash housing plastic, cracked dash pad, etc,.... ) You could block off air port on the dash housing HVAC Box to avoid these problems if you decide not to install it.

 

Thank you so much for addressing the 2nd part of the question. I will do that tonight!