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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1550 (Engine Controls And Fuel - 3.5L (L66) - Introduction (2 Of 2)) >> Repair Instructions >> Heated Oxygen Sensor Replacement - Bank 2 Sensor 2 >> Removal Procedure

Removal 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: View Of Wiring Harness Bracket Bolt
    GM1228621Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Bank 2 are cylinders 2, 4, and 6 which are closest to the front of the vehicle.
  1. Turn the ignition OFF.
  2. Disconnect the bank 2 heated oxygen sensor 2 harness connector (2) and disconnect from the retaining bracket.
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  4. Remove the left transmission mount just enough to gain access to the heated oxygen sensor. Refer to Transmission Rear Mount Replacement .
  5. Remove the heated oxygen sensor wiring harness bracket and bolt.
    6. Fig 2: View Of Bank 2 Heated Oxygen Sensor 1 Using The J39194-C
    GM1226401Courtesy of GENERAL MOTORS CORP.
    CAUTION: Removal of the sensor is easier if the exhaust system is warmed up slightly. Be careful that it is not too hot to work on safely. Applying penetrating oil to the threads while moving the sensor back and forth will also aid in removal and will decrease the chance of exhaust pipe thread damage.
  6. Remove the bank 2 heated oxygen sensor 2 using the J 39194-C  .
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