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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 - Left Side (6.6L) >> Removal Procedure

Removal 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.
  1. Remove the charge air cooler inlet pipe. Refer to Charge Air Cooler Inlet Pipe Replacement .
  2. Remove the wheelhouse liner. Refer to Front Wheelhouse Liner Replacement - Right Side (Chevrolet) or Front Wheelhouse Liner Replacement - Right Side (GMC) .
  3. Perform the following steps working through the wheelhouse opening.
    4. Fig 1: View Of Upper & Lower Intermediate Shafts & Components
    GM1701888Courtesy of GENERAL MOTORS CORP.
  4. Remove the steering coupling nut (1) and bolt (2) at the upper intermediate steering shaft.
  5. Separate the steering shaft coupling from the intermediate shaft.
    6. Fig 2: View Of Exhaust Pipe To Exhaust Manifold Bolts
    GM1874787Courtesy of GENERAL MOTORS CORP.
  6. Remove the exhaust pipe to exhaust manifold bolts (1).
    7. Fig 3: View Of Exhaust Manifold Heat Shield & Bolts
    GM1874792Courtesy of GENERAL MOTORS CORP.
  7. Remove the exhaust manifold heat shield bolts (1) and shield (2).
    8. Fig 4: Identifying Left Exhaust Manifold Bolts & Nuts Removal & Installation Sequence
    GM1335939Courtesy of GENERAL MOTORS CORP.
  8. Remove the exhaust manifold bolts and nuts in the sequence shown.
  9. Remove the exhaust manifold and gasket. Discard the gasket.
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