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Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Position the exhaust pipe with a NEW gasket to the turbocharger. Align the tab on the gasket at the turbocharger to face inward.
    Fig 1: View Of Left Exhaust Pipe
    GM1334832Courtesy of GENERAL MOTORS CORP.
  2. Loosely install the bolts.
  3. Position the exhaust pipe with a NEW gasket to the exhaust manifold. Align the tab on the gasket to face outward.
  4. Loosely install the bolts.
    5. NOTE: Refer to Fastener Notice in Cautions and Notices.
    Fig 2: Exhaust Pipe Bolt Tightening Sequence (6.6L (LLY) Engine)
    GM721436Courtesy of GENERAL MOTORS CORP.
  5. Tighten the exhaust pipe bolts in the sequence shown.

    Tighten:  Tighten the bolts to 53 N.m (39 lb ft).

    6. Fig 3: Exhaust Pipe Heat Shield Bolts (6.6L (LLY) Engine)
    GM1334829Courtesy of GENERAL MOTORS CORP.
  6. Install the exhaust pipe heat shield bolts.

    Tighten:  Tighten the bolts to 8 N.m (71 lb in).

    7. Fig 4: View Of Left Exhaust Heat Shield & Nuts
    GM707396Courtesy of GENERAL MOTORS CORP.
  7. Install the left side exhaust heat shield (3) at the dash panel.
  8. Install the heat shield nuts (2).

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

  9. Install the right wheelhouse panel. Refer to Wheelhouse Panel Replacement in Body Front End.
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