GM Service Manual Online
For 1990-2009 cars only

Exhaust Manifold Heat Shield Replacement - Left Side V8

Removal Procedure

  1. Remove the engine dress cover. Refer to Engine Cover Replacement.
  2. Warning: Refer to Exhaust Service Warning in the Preface section.

    Warning: Refer to Protective Goggles and Glove Warning in the Preface section.


    Object Number: 1951047  Size: SH
  3. Remove the exhaust manifold heat shield to exhaust manifold retaining bolts (2).
  4. Remove the exhaust manifold heat shield (1) from the exhaust manifold.

Installation Procedure


    Object Number: 1951047  Size: SH
  1. Position the exhaust manifold heat shield (1) to the exhaust manifold.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the exhaust manifold heat shield to exhaust manifold retaining bolts (2) and tighten to 10 N·m (89 lb in).
  4. Install the engine dress cover. Refer to Engine Cover Replacement.

Exhaust Manifold Heat Shield Replacement - Left Side V6

Removal Procedure

    Warning: Refer to Exhaust Service Warning in the Preface section.

    Warning: Refer to Protective Goggles and Glove Warning in the Preface section.

  1. Ignition OFF.
  2. Warning: Refer to Battery Disconnect Warning in the Preface section.

  3. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.
  4. Remove the engine cover. Refer to Engine Cover Replacement.
  5. Remove the left pre-catalytic convertor heated oxygen sensor (HO2S). Refer to Heated Oxygen Sensor Replacement - Bank 2 Sensor 1.

  6. Object Number: 2041479  Size: SH
  7. Remove the exhaust manifold heat shield to exhaust manifold retaining bolts (1).
  8. Remove the exhaust manifold heat shield (2).

Installation Procedure


    Object Number: 2041479  Size: SH
  1. Install the exhaust manifold heat shield (2).
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the exhaust manifold heat shield to exhaust manifold retaining bolts (2) and tighten to 10 N·m (89 lb in).
  4. Install the left pre-catylitic convertor HO2S. Refer to Heated Oxygen Sensor Replacement - Bank 2 Sensor 1.
  5. Install the engine cover. Refer to Engine Cover Replacement.
  6. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.