Does any pay attention to the notice that came with the cowl induction unit. mine said to remove the flexible tube from the plastic piece in the event of heavy rains.I have yet to remember to do that. However this morning, When I went outside,the truck was covered in a sheet of ice.Scraping the windshield off is when I noticed that no holes were exposed to the air over the cowl. So I preceeded to pour warm water over that area to unblock all the holes. Anyone in snow country ever had problems if the holes were covered up when you drive?---Rob