The fresh air vent is behind the glove box, it wasn't shutting all the way. I have "propped" it completely shut/open (no fresh air) until I get the AC completely functional. I'll replace the vacuum pods once the Super Don is a meat locker.

Monovalve is the next thing down the line.

It is located next to the battery in the engine compartment.

__________________

77' 300D, "Cartman" SOLD @ 150K (didn't know what I had)
83' 300SD, "The Superdon" 325k+ @ 28mpg
95 E320 wagon, "Millennium Falcon" 231k+ @ 24 Mpg
95 E300D, "Sherley" 308k @ 33.69 Mpg, currently anticipating a head
99 Suzuki Intruder "Trudy" @ 45 mpg