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HOMESERVICE MANUALSCHEVROLET2008CHEVY EXPRESS G2500, VAN CARGO, 6.6 6REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1055 (ENGINE EXHAUST SYSTEM)REPAIR INSTRUCTIONSFLOOR PANEL HEAT SHIELD REPLACEMENTINSTALLATION PROCEDURE
2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6

Installation Procedure

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Installation Procedure
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Front & Rear Exhaust Heat Shield & Nuts
    GM1856782Courtesy of GENERAL MOTORS CORP.
  1. If vehicle has a crew cab, position and install the rear exhaust heat shield (2) and/or the front exhaust heat shield (1) to the underbody studs.
    2. NOTE: Refer to Fastener Notice .
  2. Install the exhaust heat shield nuts.

    Tighten:  Tighten the nuts to 9 N.m (80 lb in).

    3. Fig 2: View Of Front & Rear Exhaust Heat Shield & Nuts
    GM1856781Courtesy of GENERAL MOTORS CORP.
  3. If vehicle has a extended cab, position and install the rear exhaust heat shield (2) and/or the front exhaust heat shield (1) to the underbody studs.
  4. Install the exhaust heat shield nuts.

    Tighten:  Tighten the nuts to 9 N.m (80 lb in).

    5. Fig 3: View Of Front & Rear Exhaust Heat Shield & Nuts
    GM1856779Courtesy of GENERAL MOTORS CORP.
  5. If vehicle has a regular cab, position and install the rear exhaust heat shield (2) and/or the front exhaust heat shield (1) to the studs.
  6. Install the exhaust heat shield nuts.

    Tighten:  Tighten the nuts to 9 N.m (80 lb in).

  7. Install the catalytic converter. Refer to Catalytic Converter Replacement (4.3L)  or Catalytic Converter Replacement (4.8L, 5.3L, 6.0L, 6.2L)  or Catalytic Converter Replacement (6.6L) .
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.