Post by
nickelghandi »
https://forums.nicoclub.com/nickelghandi-u215217.html
Thu Mar 01, 2018 10:40 am
I am pretty sure I remember my 99.5 doing that when I had it. You can shut the vent doors if it really bothers you, but I do not think it is anything to worry about.
I think it is just a fresh air inlet for the cabin. My '04 Pathfinder doesn't do it, but my '98 Volvo S70 does.