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Home >> Buick >> 2008 >> Allure CXL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Control System & Fuel System - 5.3L - Introduction (2 Of 2)) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Bank 1 Sensor 1 >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
NOTE: Refer to Heated Oxygen and Oxygen Sensor Notice .
    Fig 1: Identifying Bank 1 Heated Oxygen Sensor 1 Electrical Connector
    GM1554557Courtesy of GENERAL MOTORS CORP.
  1. Remove the intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .
  2. Remove the connector position assurance (CPA) retainer (1).
  3. Disconnect the bank 1 sensor 1 electrical connector (2).
    4. Fig 2: View Of Bank 1 Sensor 1
    GM1554545Courtesy of GENERAL MOTORS CORP.
  4. Remove the bank 1 sensor 1 from the exhaust manifold.
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