annoying heater control problem with my 84 jetta

[ilikevwdiesel]

my 84 jetta TD w/factory AC is giving me fits. for some reason the damper door up in the passenger side of the cowl will not close unless I reach into the dash and pull the pivoting vacuum control unit forward a bit (the radio is removed). The selector lever doesn't seem to pull it quite enough to send vacuum to the dashpot that controls the damper door. I move the lever all the way to the left to MAX AC, but the door won't close unless the vac fitting is given a little more of a push. If the damper up there doesn't close then warm air from outside the car gets inside the passenger compartment and the AC doesn't work as well. Anyone ever have this problem?

[ilikevwdiesel]

well I fixed it...does anyone want to know what I did? 

[theman53]

yes

[ilikevwdiesel]

ok. I have an AAZ here with a K03 turbo, the engine has these 12V vacuum switches, I think they control the waste gate during warm up? Anyways, what I did was put one of those vac switches in the vac lines in the cowl where the dashpot that controls the damper door is, and wired it to a toggle switch that I mounted on the dash where the flasher and rear defrost switches are. This way I can control the damper door independent of any of the selector lever settings on the heater control.

Thank you very much!

[theman53]

have anymore of those switches

[ilikevwdiesel]

yes as a matter of fact I do have some moar of them but they are also used on mk3 cars with ABA engines.

[ilikevwdiesel]

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