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Discussion Starter #1
don't seem to have any vacuum on the purple line to the water valve. valve seems to be okay - put some good vacuum on it and it opened and closed just fine. thought i would get some ideas before i started taking stuff apart. the valve fails to the open position, so i do have hot air if i need it. 1970 Cougar. thanks-

billy
 

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Discussion Starter #2
never mind. figured it out. it works as advertised. valve only closes when one of the two A/C positions selected along with cool. all other positions take away vacuum and open the water valve. shop manuals are cool!
 
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