The flap is open all the time, so its a minor nuisance when the AC is on. So far I removed the vacuum pod and it holds vacuum at both nipples. There is no vacuum at either hose at any ACC switch position. The other vacuum pods seem to be operating normally. The hoses go down the inside right side of the console to someplace. What can I check next?

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1985 380SE Blue/Blue - 230,000 miles
2012 Subaru Forester 5-speed
2005 Toyota Sienna
2004 Chrysler Sebring convertible
1999 Toyota Tacoma