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Home >> Buick >> 2021 >> Envision Preferred, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Power Transfer Unit/Transfer Case - AAM >> Repair Instructions - On Vehicle >> Power Transfer Unit Vent Hose Replacement >> Installation Procedure

Installation Procedure

  1. GM5605205Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure the power transfer vent hose is free of kinks and routed away of sharp objects.

    Power Transfer Unit Vent Hose (2) @ Vehicle - Install

  2. Power Transfer Unit Vent Hose (2) @ Power Transfer Unit Case (3) - Connect
  3. Power Transfer Unit Vent Hose Retainer (1) @ Turbocharger Outlet Duct Connector - Connect
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