vac port for pressure reg and trans vac

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  • tony94gtp
    • Jan 2005
    • 34

    #1

    vac port for pressure reg and trans vac

    if this port is for vac pressure (sucking ) why in world at my port on my 3.4 blowing air in the pressure reg line and trans line? would a egr vavle stuck close do this or a blocked catalytic converter cause this. back pressure iam thinking
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