GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2006 🢒 Solstice 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Catalytic Converter Replacement

Removal Procedure

    Object Number: 1593131 Size: SH
  1. Open the hood.
  2. Remove the exhaust manifold heat shield bolts and shield.

    3. Object Number: 1592527 Size: SH
  3. Remove the catalytic converter to exhaust manifold nuts (1).

    4. Object Number: 1592538 Size: SH
  4. Remove the connector position assurance (CPA) retainer.
  5. Disconnect the engine wiring harness electrical connector (3) from the position 2 heated oxygen sensor (HO2S).
  6. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

    7. Object Number: 1592529 Size: SH
  7. Remove the catalytic converter to catalytic converter brace bracket bolt.

    8. Object Number: 1593749 Size: SH
  8. Remove the catalytic converter to muffler nuts.
  9. Separate the exhaust pipe from the catalytic converter studs.
  10. Position and support the exhaust pipe out of the way.

    11. Object Number: 1592527 Size: SH
  11. Remove the catalytic converter and gasket (2).

Installation Procedure

    Object Number: 1592527 Size: SH
  1. Install the catalytic converter along with a NEW gasket (2) to the exhaust manifold.

    2. Object Number: 1593749 Size: SH
  2. Position and join the exhaust pipe to the catalytic converter studs.
  3. Loosely install the catalytic converter to muffler nuts.

    4. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1592529 Size: SH
  4. Install the catalytic converter to catalytic converter brace bracket bolt.

    5. Tighten

        • Tighten the catalytic converter to muffler nuts to 17 N·m (13 lb ft).
        • Tighten the catalytic converter to catalytic converter brace bracket bolt to 50 N·m (37 lb ft).
  5. Lower the vehicle

    6. Object Number: 1592538 Size: SH
  6. Connect the engine wiring harness electrical connector (3) to the position 2 HO2S.
  7. Install the CPA retainer.

    8. Object Number: 1592527 Size: SH
  8. Install the catalytic converter to exhaust manifold nuts (1).

    9. Tighten
    Tighten the nuts to 50 N·m (37 lb ft).


    Object Number: 1593131 Size: SH
  9. Install the exhaust manifold heat shield and bolts.

    10. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

  10. Close the hood.