All;

Having issues with the climate control and air circulation in my 85 california spec 300TD. Earlier this year I lost the airflow to the footwells, likely a vacuum pod, but work has prevented me from truly troubleshooting.

Now that it's warming up, I've tried to call up A/C, but am not getting refrigerated air.

Fresh air was working fine until a week or so ago, when I lost airflow through the center dash vents, though I have good heat or cool air through the outer dash vents. While in the EC mode, and with the temp dial to MIN, I can intermittently get cool air through the center vents. While in the EC setting, and the center vents flowing cool air, if I change the temperature selector to MAX, then the airflow ceases from the center vents, some goes to the windshield (which is normal I believe, the footwells receive no heat, as stated earlier). The problem is that if I return the temperature selector back to MIN, the center vents do not "open" for airflow. If I select Multi-Level, this seems to "unstick" the center vents, and then I can return to the EC setting, and they will remain open delivering cool air.

Before I start chasing the A/C issue, I'd like to at least get the airflow working properly through the various vents.

I've looked at the sticky for various "how-to's", but don't see an overarching one for Climate Control. A search of the threads is overwhelming in the number of different threads, and fails to provide me a definitive starting point, and sequential troubleshooting/repair sequence.

Any and all help will be appreciated.

Thank you