Blend door

[DCustom]

OK guys, just about through under the dash. Everything working great EXCEPT my blend door does not close all the way. It opens great when air is selected closes half way on bi and will close a little more on heater and defrost but will not close all the way. I NEED IDEAS. By the way its a 1984 w/air

[thirsty]

Try cleaning and lubricating all the pivot points on the door and the linkage that controls it.

[DCustom]

thirsty, thanks for the input, i have done that already and worked it back and forth. It will close if you help it but not on its own. Ive tryed to adjust the linkage and that didnt work. Cant figure this one out. Somebody will come up with something maybe

[nlauffer]

Adjustment was my thought.  But if you tried that already, I would think about checking the vacuum pod.  maybe it is getting weak and needs replaced.

[DCustom]

nlauffer, thank you for your reply......that is just about all it can be at this point and thats what it acts like is weak vac.....i've started under the hood with the engine and stuff....if something dont come up out there ive still got to glass my dash.....i will take another look at it then....again, want to thank everybody for the help