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HOMESERVICE MANUALSPONTIAC2006G6 GTP, 2D COUPE, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 184 (ENGINE EXHAUST SYSTEM)REPAIR INSTRUCTIONSCATALYTIC CONVERTER REPLACEMENT (FRONT)INSTALLATION PROCEDURE
2006 Pontiac G6 GTP, 2D Coupe, Standard

Installation Procedure

2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Installation Procedure
WARNING: This page is about a different car, the 2005 Pontiac G6. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Front Catalytic Converter To Rear Catalytic Converter
    GM1492085Courtesy of GENERAL MOTORS CORP.
  1. Install a NEW gasket to the front catalytic converter studs.
  2. Install the front catalytic converter (1).
  3. Install a NEW gasket (2) to the rear catalytic converter studs.
  4. Install the rear catalytic converter (3).
    5. NOTE: Refer to Fastener Notice in Cautions and Notices.
  5. Install the rear catalytic converter bolt (4) and nuts (1) at the exhaust manifold.

    Tighten:  Tighten the bolt and nuts to 31 N.m (23 lb ft).

    6. Fig 2: Front Catalytic Converter To Rear Catalytic Converter View
    GM1492086Courtesy of GENERAL MOTORS CORP.
  6. Install the front catalytic converter to rear catalytic converter nuts (3). (Powertrain shown removed for clarity).

    Tighten:  Tighten the nuts to 31 N.m (23 lb ft).

    7. Fig 3: Identifying HO2S
    GM1492088Courtesy of GENERAL MOTORS CORP.
  7. Install the front and rear HO2S's (1, 2) using the J 39194-B  .

    Tighten:  Tighten the sensor to 42 N.m (31 lb ft).

    8. Fig 4: Front HO2S CPA Retainer
    GM1492090Courtesy of GENERAL MOTORS CORP.
  8. Connect the front HO2S electrical connector (1).
  9. Install the front HO2S CPA retainer (2).
    10. Fig 5: Rear Heated Oxygen Sensor
    GM1492091Courtesy of GENERAL MOTORS CORP.
  10. Disconnect the rear HO2S electrical connector (2).
  11. Install the rear HO2S CPA retainer (1).
  12. Install the muffler assembly. Refer to Muffler Replacement .
    13. Fig 6: Front Catalytic Converter
    GM1492084Courtesy of GENERAL MOTORS CORP.
  13. Install the front catalytic converter nuts (1) at the exhaust manifold.

    Tighten:  Tighten the nuts to 31 N.m (23 lb ft).

  14. Start the engine, and check for exhaust leaks.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.