Installation Procedure

2006 Chevrolet Suburban C2500, 6.0 USECTION Installation Procedure
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis 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 .
  3. Install the exhaust heat shield nuts.

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

  4. Fig 2: View Of Front & Rear Exhaust Heat Shield & Nuts
    GM1856781Courtesy of GENERAL MOTORS CORP.
  5. 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.
  6. Install the exhaust heat shield nuts.

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

  7. Fig 3: View Of Front & Rear Exhaust Heat Shield & Nuts
    GM1856779Courtesy of GENERAL MOTORS CORP.
  8. 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.
  9. Install the exhaust heat shield nuts.

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

  10. Install the catalytic converter. Refer to Catalytic Converter Replacement (4.3L)Β  or Catalytic Converter Replacement (4.8L, 5.3L, 6.0L, 6.2L)Β  or Catalytic Converter Replacement (6.6L)Β .
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:

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