>  Should I be feeling something inside the
>  van when I change that from open to closed..?

When driving somewhere for the first time in my new '90 GL, my wife
kept saying "I feel air coming in somewhere". I gave a quick eyeball
to the vent levers, and stuck my hand in front of the footwell vent
and then the defroster. No air. She swore her side vent was closed.
Then she said "I swear it's coming from BEHIND me!" Then it dawned on
me--- it was the fourth lever! My 90 non-GL had only the basic three:
defrost, hot-cold, footwell. I pushed the fourth lever over, and
magically both the air and complaints stopped. Upon later inspection,
I noted that all the individual vents except the one pointed at my
wife from behind, which explains why only she felt it.

I noticed that the rear vent air wasn't warm, even though the heater
valve was typically out of adjustment. Do the rear vents blow unheated
air, like the dash vents did on the older Vanagons?

--
John Bange
'90 Vanagon - "Schlosswagen"
'90 Vanagon GL - "Wiesel"