Ok today I removed the cover to the heater core and took a look around and all seemed normal. I watched the vacuum valves open and close as different heat cycles were selected and they also look normal. I went and un-plugged the vacuum lines to those valves and reconnected and all was fine. But, after putting it all back together now there is no AC even on the driver side. Compressor kicks on and off but no cold air at all now. I don't really understand what I could have done to make it not work at all!
When you speak of plenum are you speaking of the housing the heater core is in? This would require the dash be removed correct?
Thanks for the help!