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Thread: Dash Mounted vacuum gauge

  1. #1
    Join Date
    Sep 2012

    Default Dash Mounted vacuum gauge

    I got a nice new vacuum gauge for Christmas and when I hook it up I was needing to know where would be a good place to T off for the vacuum line to hook it up? I have a 1994 gmc truck with a 350-5.7 engine. Could you tap in to the MAP sensor line or where? Thanks

  2. #2
    Join Date
    Jan 2007


    Hi chevyaz,

    Merry Christmas and Happy New Year!
    You need to tap into a manifold vacuum source, not ported. So yes, T-ing into the MAP line would work.

    Let us know how it works!

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