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HVAC Problem S90-V90

posted by  1998S90 on  Tue Mar 17 12:37 CST 2015
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last visit: Fri Aug 2 07:15 CST 2013
[RELATED]

Thanks for the reply AF. I was in motorcycle safety class all weekend with my son but am now back and ready to takle this project. I was able to find the valve in question but I really don't know how to check it. It seemed to operate fine. It operated properly as I ran through the different settings. I unplugged the electrical connector and it defaulted to the heater/defrost position. Could there just be an intermintant gremlin inside the switch? Are those lines coming out of the top of the valve the vacuum lines?






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