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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 439 (Electronic Engine Controls) >> Removal And Installation >> Heated Oxygen Sensor (HO2S) >> Removal and Installation

Removal and Installation

WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

All sensors 

  1. With the vehicle in NEUTRAL, position it on a hoist. Refer to JACKING & LIFTING .

    RH HO2S on 5.0L engine with automatic transmission 

  2. Disconnect the transmission vehicle harness connector by twisting the outer shell and pulling back on the connector.
    • Detach the wiring harness retainer.
      G07488420
  3. Detach the 2 wiring harness retainers.
    G07488421

    RH HO2S on 5.0L engine with manual transmission 

  4. Disconnect the skip shift solenoid electrical connector.
    G07488422
  5. Detach the 2 wiring harness retainers.
    G07488423

    RH HO2S on 5.0L and 5.8L engines 

  6. Remove the battery tray. Refer to BATTERY, MOUNTING AND CABLES .

    RH HO2S on 5.0L engine 

  7. Pull the wiring harness up toward the rear of the engine to access the HO2S electrical connector.

    All sensors 

  8. Detach the pin type retainer and disconnect the HO2S electrical connector.
  9. NOTE: If necessary, lubricate the HO2S threads with penetrating and lock lubricant to aid in removal.

    Using a crowfoot wrench, remove the HO2S.

    • Calculate the correct torque wrench setting for the following torque. Refer to the Torque Wrench Adapter Formulas in the illustration .
    • To install, use a crowfoot wrench, tighten to 48 Nm (35 lb-ft).
    Fig 1: Identifying Torque Wrench Adapter Formulas
    G00468730Courtesy of FORD MOTOR CO.
  10. To install, reverse the removal procedure.
    • Apply a light coat of anti-seize lubricant to the threads of the HO2S before installing.