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Home >> Subaru >> 2016 >> WRX Premium, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Emission Control Systems (Aux. Emission Control Devices) (WRX-STI)) >> Leak Check Valve Assembly >> Inspection >> Check Vacuum Pump

Check Vacuum Pump

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  1. Connect the battery positive terminal to terminal No. 3 and the battery ground terminal to terminal No. 4, and inspect the vacuum pump operation.
    CAUTION: Do not operate the vacuum pump for 5 minutes or more.
    Fig 1: Connecting Battery Positive Terminal To Terminal 3
    G07664953Courtesy of SUBARU OF AMERICA, INC.
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