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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1838 (Engine Controls And Fuel - 2.2L (L61) - Introduction (2 Of 2)) >> Repair Instructions >> Heated Oxygen Sensor 2 Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Removing & Installing Heated Oxygen Sensor-2
    GM932526Courtesy of GENERAL MOTORS CORP.
    NOTE: Silicone based products will contaminate the HO2S. Use only a nickel based anti-seize compound that does not contain silicone.
  1. Apply a small amount of anti-seize compound Saturn P/N 21485279, or equivalent, to the threads of the HO2S-2.
    2. NOTE: Refer to Fastener Notice .
  2. Install the HO2S-2 using the J 39194-C  , or equivalent. See Special Tools .

    Tighten:  Tighten the HO2S-2 sensor-to-exhaust pipe to 45 N.m (33 lb ft).

    3. NOTE: Do Not apply any material in the HO2S-2 harness connector such as grease or dielectric compound. The wires carry air reference to the sensor in order for the sensor to operate properly.
  3. Install the HO2S-2 harness clip to the heat shield attachment bolt.

    Tighten:  Tighten the bolt to 4 N.m (35 lb in).

  4. Connect the HO2S-2 harness connector. Push in the connector until a click is heard, then pull back to confirm a positive engagement.
  5. Ensure the HO2S-2 harness pigtail connector is secure to the chassis.
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