Well I looked above to tire carrier and saw that valve.  It wasn't very
hard to manually close.  I think that fixed the problem although I am
still getting a little heat I figure that is the "ram air" or fresh air
coming from outside?  But it's not burning my feet anymore.  I drive
barefoot most of the time.  Also that latch holding up the spare tire
didn't seem very stout.  Is it only held up by the latch or is there
supposed to be a bolt or something holding it up?

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'84 Westfalia, 1.9L
'73 FJ40, 2F