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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Automatic Transmission - ALLISON - Introduction (2 Of 2)) >> Repair Instructions >> Oil Pressure Test Plug Replacement >> Removal Procedure

Removal Procedure

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  1. Remove the pressure tap plug (2) and O-ring (1) on the bottom of the converter housing near the transmission external oil filter.
    Fig 1: Removing Pressure Tap Plug
    GM1666654Courtesy of GENERAL MOTORS CORP.
  2. Remove the O-ring from the plug and discard it.