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Vacuum pressure 500 psi?

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  • Vacuum pressure 500 psi?

    Just kidding... however, I was just wondering what the normal vacuum pressure is for a V6 3.1. I installed a vacuum guage in my z24 because it just looks cool... and it wouldn't be bad for diagnostics.

  • #2
    At idle 18~20 inches. But it depends on altitude too.
    1993 EXT. CAB, 3.4L V6 TBI, 5spd manual. Sonoma
    1990 4Door, 3.2L V6 TBI, 5spd manual. 4X4. Trooper
    Because... I am, CANADIAN

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