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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1112 (Engine Mechanical - 3.6L (2 Of 6)) >> On-Vehicle Repair Instructions (1 Of 2) >> Positive Crankcase Ventilation Hose/Pipe/Tube Replacement (LLT) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Removing/Installing Intake Manifold Insulator
    GM1976275Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (LY7)  or Fuel Injector Sight Shield Replacement (LLT) .
  2. Remove two intake manifold insulator retaining pins (1)
  3. Remove the intake manifold insulator (2)
  4. Fig 2: View Of PCV Fresh Air Tube
    GM887815Courtesy of GENERAL MOTORS CORP.
  5. Remove the positive crankcase ventilation (PCV) fresh air tube from the left camshaft cover.
  6. Remove the PCV fresh air tube from the air inlet.
  7. Fig 3: Identifying PCV Dirty Air Tube
    GM1977217Courtesy of GENERAL MOTORS CORP.
  8. Remove the PCV dirty air tube (1) from the right camshaft cover (2).
  9. Remove the PCV dirty air tube (1) from the intake manifold (3).