Jim,

Thanks for the response. I did indeed check the vacuum source last week when I had the glovebox out. I did not measure it at the switchover valve with a gauge, but I did check at the firewall to ensure that the one way valve and the reservoir were okay. I was following the factory info and supplying vac at 400 mBARS as they indicated. I will measure at the input to the switchover valve and see what it is making.

Do you have any idea how much vacuum it should be supplying at the switchover?

I replaced the defrost pod of course, but I did not check the seal around the defrost door. I'm not so much worried about the condensation from the defrost vents. I was just posting this as a possible clue to the problem.

Thanks again,