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   ptpdub Member

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   there are 2 vacuum lines coming out of the fire wall on my mav. they operate the defrost and vent doors. i am wondering if they both get hooked up to a vacuum source or if only one is negative pressure and the other is positive? any ideas?

    

   ptpdub, Jun 3, 2010

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   rthomas771 Member

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   rthomas771, Jun 3, 2010

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