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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1391 (Engine Exhaust System) >> Repair Instructions >> Exhaust Manifold Replacement - Right Side (6.6L) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Oil Level Indicator Tube Bolt & Manifold Gasket
    GM1875033Courtesy of GENERAL MOTORS CORP.
  1. Install a NEW exhaust manifold gasket (1) onto the studs.
    2. CAUTION: Refer to Fastener Caution .
  2. Rotate the oil level indicator tube into position and install the oil level indicator tube bolt (2) and tighten to 21 N.m (15 lb ft).
    3. Fig 2: View Of Exhaust Manifold & Gasket
    GM1875032Courtesy of GENERAL MOTORS CORP.
  3. Position a NEW exhaust pipe gasket between the exhaust manifold and exhaust pipe. Align the tabs on the gasket to face downward.
  4. Install the exhaust manifold onto the studs.
    5. Fig 3: Identifying exhaust manifold bolts and nuts
    GM1872440Courtesy of GENERAL MOTORS CORP.
  5. Install and tighten the exhaust manifold bolts and nuts in the sequence shown and tighten to 57 N.m (42 lb ft).
  6. Tighten the 4 center bolts/nuts an additional pass to 57 N.m (42 lb ft).
    7. Fig 4: View Of Exhaust Manifold Heat Shield & Bolts
    GM1875031Courtesy of GENERAL MOTORS CORP.
  7. Position the exhaust manifold heat shield to the manifold and install the exhaust manifold bolts (1) and tighten to 10 N.m (89 lb in).
    8. Fig 5: View Of Exhaust Pipe To Exhaust Manifold Bolts
    GM1875030Courtesy of GENERAL MOTORS CORP.
  8. Install the exhaust pipe bracket and the exhaust pipe to exhaust manifold bolts (1).
    9. Fig 6: View Of Exhaust Manifold Bolt Tightening Sequence
    GM1872442Courtesy of GENERAL MOTORS CORP.
  9. Tighten the exhaust pipe to exhaust manifold bolts in the sequence shown (4, 5, and 6) to 53 N.m (39 lb ft).
    10. Fig 7: View Of Turbocharger Exhaust Pipe Bracket Bolt
    GM1875245Courtesy of GENERAL MOTORS CORP.
  10. Install the exhaust pipe to turbocharger exhaust pipe bracket bolt and tighten to 34 N.m (25 lb ft).
  11. Install the wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Right Side (Chevrolet) or Front Wheelhouse Liner Replacement - Right Side (GMC) .
  12. Lower the vehicle.
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