GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 Envoy - 2WD 🢒 Engine 🢒 Engine Exhaust 🢒 Catalytic Converter Heat Shield Replacement

Removal Procedure

    Object Number: 1923441 Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the nuts (4) securing the heat shield to the underbody.
  3. Remove the heat shield (5) from the underbody.

    4. Object Number: 1923442 Size: SH
  4. Remove the nuts (2) securing the heat shield to the underbody, if equipped.
  5. Remove the heat shield (1) from the underbody, if equipped.

Installation Procedure

    Object Number: 1923442 Size: SH
  1. Install the heat shield (1) to the underbody, if equipped.

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

  2. Install the nuts (2) securing the heat shield to the underbody, if equipped.

    3. Tighten
    Tighten the nuts to 7 N·m (62 lb in).


    Object Number: 1923441 Size: SH
  3. Install the heat shield (5) to the underbody.
  4. Install the nuts (4) securing the heat shield to the underbody .

    5. Tighten
    Tighten the nuts to 7 N·m (62 lb in).

  5. Lower the vehicle.