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Home >> Cadillac >> 2005 >> CTS Base, 2.8 T, Standard >> Repair and Diagnosis >> Engine Mechanical >> Engine Exhaust System >> Repair Instructions >> Catalytic Converter Replacement, Left (LS6) >> Installation Procedure

Installation Procedure

  1. Install the oxygen sensors to the catalytic converter. Refer to Heated Oxygen Sensor (HO2S) Replacement Bank 1 Sensor 1 and Heated Oxygen Sensor (HO2S) Replacement Bank 1 Sensor 2 in Engine Controls, 5.7L.
  2. Install the catalytic converter gasket (1) to the catalytic converter.
    3. Fig 1: View Of Left Catalytic Converter & Gasket
    GM1455615Courtesy of GENERAL MOTORS CORP.
  3. Carefully install the catalytic converter to the exhaust manifold.
  4. Install the catalytic converter nuts.
  5. Tighten the catalytic converter to exhaust manifold nuts.

    Tighten:  Tighten the catalytic converter nuts to 50 N.m (37 lb ft).

  6. Connect the oxygen sensor electrical connectors.
  7. Using the screw jack, raise the exhaust system.
  8. Connect the exhaust system to the left and right side catalytic converters. Refer to Exhaust System Replacement (LP1)  or Exhaust System Replacement (LY7)  or Exhaust System Replacement (LS6) .
    9. Fig 2: Identifying Floor Panel Tunnel Brace
    GM772383Courtesy of GENERAL MOTORS CORP.
  9. Remove the screw jack.
  10. Install the floor panel tunnel brace. Refer to Exhaust System Replacement (LP1)  or Exhaust System Replacement (LY7)  or Exhaust System Replacement (LS6) .
  11. Lower the vehicle.
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