I'm trying to determine the root cause of my problem, and wanted to get an understanding of what the actuators in our car's HVAC system do.
-I assume that #65, controls the air intake, from fresh to recirculate (ON MAX)
-#64 I assume something with the VENT control, changes the flow from Defrost, Vent, or floor.
-#63 I assume something with the FLOOR & DEFROST?
I am having air come from all 3 locations by default.
I have removed the vacuum line from #64, and checked for vacuum on the incoming line; nothing. I then checked to see if the actuator held vacuum, nothing.
I then applied and held a vacuum to #64, and I get full VENT mode.
So, I'm trying to track down my problem, and think it's got something to do with where #64 gets it's vacuum.
I assume #66 is just a reservoir tank?
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