88 110 AC - NAS style
Can someone tell me how the AC controls work on an 88 LHD with factory AC? I am pretty sure I have an issue but need some help diagnosing. When I use the selector lever to move air to come out the dash vents the air continues to blow out the defrost vents. It used to eventually switch to the dash vents but seemed to have amend of its own, switching between dash and defrost on its own. Now it just comes out of the defrost. Is there a motor or vacuum hose to activate the plenum doors? Does not appear to be cables
Thanks in advance!