Mach 1 Club

Full Version: climate control and fan switch not working
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When I switch from heat to defrost, the switch moves too easy as though it's not pulling the cable to change vacuum setting. Also I don't feel anything blowing from the vents. I currently have dash pad removed along with clock bezel. Is there a way to troubleshoot this? I assume I have to check for volts and replace some part that pulls the vacuum cable but wanted to confirm?
If I remember correctly the heat controls are simply cable operated. I don't remember any vacumm doors on the heater box??? Don you know any more? It's been a very long time since I have looked under the dash? I hope Don can help with this. JTS 71 Mach1
It sounds as though your cable has simply become un-attached.
Lube up the flap hinges and cables. Make sure the cables have nice smooth curves, no sharp angle turns, in them.