GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 TrailBlazer - 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. Caution: Refer to Fastener Caution 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.