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-   -   Vacuum Solenoid - Vent Controls (https://www.tbirdforum.com/forums/bullet-birds-1961-1963/4360-vacuum-solenoid-vent-controls.html)

marcmata 02-23-2016 03:29 PM

Vacuum Solenoid - Vent Controls
 
Hi All,

On a 1963 there are vacuum solenoids used to open and close vents depending on where you desire the AC or heat to blow from. For example, the AC has a large vent dead center of the dash just above the fan control. My AC works great but the vent will not open, i see the solenoid for this is just to the right of the vent behind the dash (hard to get to) So - I don't know if I have a vacuum problem or a solenoid problem.

How do I troubleshoot or fix?

Thank you in advance.

Marc

Terry64HT 02-24-2016 12:12 PM

Even though my car is a 64, I think the steps to check things will be the same. The vacuum motor for my problem vent was also located up under the dash. I removed enough to get to it and pulled the vacuum line off the end of the solenoid. Using a vacuum pump brake bleeder kit, I hooked up to the line and tested the vacuum at different control settings. I got that sorted out so that I read vacuum when I should and then hooked a line from the vacuum pump to the fitting on the solenoid. I couldn't pull a vacuum on the gauge, so the diaphragm was shot.
These little vacuum motors really aren't repairable (I've tried), but there are replacement ones available.
Hope this helps
Terry 64HT

rhinoman 03-07-2016 09:39 PM

I just propped my vents open with a length of timber 1" wide and just the right length an closed the foot level vents with foam jammed in to close the vent.

In winter I can just remove them to get heating into the car.

Graeme


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