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Home >> Buick >> 2000 >> LeSabre Limited, 4T65E/MN3 >> Repair and Diagnosis >> External Pages >> Different car >> Section 135 (Engine Controls - Introduction) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Position 2 >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different car, the 2005 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Removing/Installing HO2S (Position 2)
    GM402074Courtesy of GENERAL MOTORS CORP.
  1. Install the oxygen sensor (4) in the exhaust pipe.

    Tighten:  Tighten the sensor to 41 N.m (30 lb ft).

  2. Connect the electrical connector (2) to the HO2S (4).
  3. Connect the HO2S electrical connector retaining tab (1).
  4. Install the front splash shield (3).
  5. Lower the vehicle.
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