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Home >> GMC >> 2004 >> Sierra 2500 HD, 2D Pickup, 6.6 2, RWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 6.6L (LLY) (Introduction) >> Repair Instructions >> Air Intake Pipe Replacement >> Removal Procedure

Removal Procedure

  1. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement in Engine Mechanical - 6.6L (LLY).
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  3. Remove the positive crankcase ventilation (PCV) hose/pipe. Refer to Crankcase Ventilation Hoses/Pipes Replacement in Engine Mechanical - 6.6L (LLY).
  4. Disconnect the turbocharger electrical connector. Lift the metal retainer, in order to disconnect.
  5. Remove the engine wire harness clamp bolt and reposition.
    6. IMPORTANT: The clamp for the air intake pipe uses reverse threads.
    Fig 1: View Of Turbocharger Air Intake Pipe
    GM1394901Courtesy of GENERAL MOTORS CORP.
  6. Loosen the air intake pipe to turbocharger clamp (1).
  7. Remove the air intake pipe (2) from the turbocharger.
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