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Removal - Upstream 1/1 - 3.3/3.8L

  1. Remove battery, refer to BATTERY SYSTEM .
  2. Remove the battery tray, refer to BATTERY SYSTEM .
  3. Disconnect the speed control vacuum harness from servo.
  4. Disconnect the electrical connector from servo.
    Fig 1: O2 Sensor 1/1
    GC0023241Courtesy of DAIMLERCHRYSLER CORP.
  5. Remove the speed control servo and bracket and reposition.
  6. Use a socket such as the Snap-On(R) YA8875 or equivalent to remove the sensor. See Fig 1.
  7. When the sensor is removed, the threads must be cleaned with an 18 mm X 1.5 + 6E tap. If using the original sensor, coat the threads with Loctite 771-64 anti-seize compound or equivalent.