GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2006 🢒 Solstice 🢒 Engine 🢒 Engine Exhaust 🢒 Exhaust Manifold Replacement

Removal Procedure

    Object Number: 1592538 Size: SH
  1. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  2. Remove the connector position assurance (CPA) retainer.
  3. Disconnect the heated oxygen sensor (HO2S) electrical connector (2).

    4. Object Number: 1593747 Size: SH

    Important: The HO2S uses a permanently attached pigtail and connector. This pigtail should not be removed from the sensor. Damage or removal of the pigtail or connector will affect proper operation of the sensor.

  4. Remove the HO2S (1). Refer to Heated Oxygen Sensor 1 Replacement .

    5. Object Number: 1593131 Size: SH
  5. Remove the exhaust manifold heat shield bolts.
  6. Remove the heat shield.

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

    8. Object Number: 1593748 Size: SH
  8. Remove and discard the exhaust manifold nuts.
  9. Remove the exhaust manifold.
  10. Remove and discard the exhaust manifold gasket.

Installation Procedure

    Object Number: 1593748 Size: SH
  1. Install a NEW exhaust manifold gasket onto the studs.
  2. Install the exhaust manifold.
  3. Install the NEW exhaust manifold nuts finger tight.

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


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

    5. Tighten
    Tighten the bolts to 50 N·m (37 lb ft).


    Object Number: 1340643 Size: SH
  5. Tighten the exhaust manifold nuts in the sequence shown.

    6. Tighten
    Tighten the nuts to 14 N·m (10 lb ft).


    Object Number: 1593131 Size: SH
  6. Install the heat shield.
  7. Install the exhaust manifold heat shield bolts.

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


    Object Number: 1593747 Size: SH
  8. Install the HO2S (1). Refer to Heated Oxygen Sensor 1 Replacement .

    9. Object Number: 1592538 Size: SH
  9. Connect the HO2S electrical connector (2).
  10. Install the CPA retainer.
  11. Start the vehicle and inspect for leaks.
  12. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .