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Home › GMC › 2023 › Canyon AT4 › Repair and Diagnosis › Engine Performance › System › Engine Controls And Fuel - 2.7L - Repair Instructions › Repair Instructions › Heated Oxygen Sensor Replacement - Sensor 2 › Removal Procedure

Removal Procedure

  1. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection
  2. GM6186547Courtesy of GENERAL MOTORS COMPANY

    Release the retaining tabs and remove the battery distribution engine compartment fuse block cover (1).

  3. GM6186572Courtesy of GENERAL MOTORS COMPANY

    Battery Positive Cable Nut (1) - Remove

  4. Battery Negative Cable (2) - Remove
  5. GM6142315Courtesy of GENERAL MOTORS COMPANY

    Battery Distribution Fuse Block Nut (1) - Remove [2x]

  6. GM6142319Courtesy of GENERAL MOTORS COMPANY

    Wiring Harness Clip (1) - Remove [2x]

  7. Battery Distribution Engine Compartment Fuse Block (2) - Reposition
  8. GM6142326Courtesy of GENERAL MOTORS COMPANY

    Disconnect the electrical connectors and release the wiring harness retainers as necessary.

  9. Engine Control Module (1) - Remove
  10. Transmission Control Module (2) - Remove
  11. GM6142327Courtesy of GENERAL MOTORS COMPANY

    Engine Control Module Bracket Bolt (1) - Remove [2x]

  12. Engine Control Module Bracket Nut (2) - Remove
  13. GM6142332Courtesy of GENERAL MOTORS COMPANY

    Disconnect the wiring harness retainers as necessary.

  14. Engine Control Module Bracket (1) - Remove
  15. GM6136544Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • The heated oxygen sensor in-line connector and louvered end MUST be kept clear of all grease, dirt, and other contaminants. Do NOT use cleaning solvents of any type. Do NOT drop or roughly handle the sensor.
    • The heated oxygen sensor MAY be difficult to remove when the engine temperature is less than 48°C (120°F).

    Disconnect the electrical connector.

  16. Heated Oxygen Sensor (1) - Remove
  17. GM6143382Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Heat Shield Bolt (1) - Remove [2x]

  18. GM6143442Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Heat Shield Bolt (1) - Remove

  19. GM6143389Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Heat Shield Bolt (1) - Remove

  20. GM6143443Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Heat Shield (1) - Remove

  21. GM6136556Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • The heated oxygen sensor in-line connector and louvered end MUST be kept clear of all grease, dirt, and other contaminants. Do NOT use cleaning solvents of any type. Do NOT drop or roughly handle the sensor.
    • The heated oxygen sensor MAY be difficult to remove when the engine temperature is less than 48°C (120°F).

    Disconnect the electrical connector.

  22. Heated Oxygen Sensor (1) - Remove
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