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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 >> Fill Plug Replacement >> Removal Procedure
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Removal Procedure

  1. Power Transfer Unit Heat Shield - Remove - Power Transfer Unit Heat Shield Replacement 
  2. Fig 1: Identifying Power Transfer Unit Fill Plug
    GM5605203Courtesy of GENERAL MOTORS COMPANY

    Power Transfer Unit Fill Plug (1) @ Power Transfer Unit Case - Remove

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