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wiper switch issue

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  • Stephen B.
    Frequent User
    • November 29, 2014
    • 75

    wiper switch issue

    Good evening. Working my 72 wiper issues and I have a question.l What port do you test to check the vacuum wiper switch? red or white. Just received one from Zip and either port holds vacuum. And where can a person one get that is good? I've heard there an issue with these. Thanks for help
  • Gary B.
    Very Frequent User
    • July 31, 1979
    • 926

    #2
    Re: wiper switch issue

    Push the plunger down with a squeeze clamp. Cap off the very bottom port (white), pull vacuum on the center (red) port The very top port (green) is a vent.
    Gary B

    20200726_102801_1.jpg

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    • Stephen B.
      Frequent User
      • November 29, 2014
      • 75

      #3
      Re: wiper switch issue

      That worked. You go on the web and see this switch tested in different ways........I'll press on to put my coupe on the road. its been almost 20 years for that to happen., Alot of work, but cool. You just don't see to many old vettes on the road.

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