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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1020 (Engine Mechanical - 6.6L (LLY)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Intake Manifold Tube Replacement >> Removal Procedure

Removal 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. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement in Engine Controls - 6.6L (LLY).
  3. Loosen the charged air cooler outlet duct to intake hose clamp.
    4. IMPORTANT: Do not use a screwdriver or other tool to pry the hose loose. The hose can be torn or damaged. Loosen the hose by twisting.
  4. Remove the charged air cooler outlet duct from the intake.
    5. Fig 1: View Of Charged Air Cooler Outlet Duct
    GM1334381Courtesy of GENERAL MOTORS CORP.
  5. If necessary, remove the tie strap from the electrical harness.
    6. Fig 2: View Of Electrical Harness Tie Strap
    GM1335476Courtesy of GENERAL MOTORS CORP.
  6. Reposition the harness clip from the intake manifold tube, as needed.
  7. Remove the air inlet tube to intake manifold tube bolt and nut.
    8. Fig 3: View Of Air Inlet Tube To Intake Manifold Tube
    GM1335562Courtesy of GENERAL MOTORS CORP.
  8. Remove the air inlet tube nuts.
  9. Remove the air inlet tube.
    10. Fig 4: View Of Air Inlet Tube
    GM1335564Courtesy of GENERAL MOTORS CORP.
  10. If necessary, remove the intake manifold tube.
    11. Fig 5: View Of Intake Manifold Tube
    GM1335575Courtesy of GENERAL MOTORS CORP.
  11. If necessary, remove and discard the 2 O-ring seals from the tube.
  12. Clean the gasket surfaces of the exhaust gas recirculation (EGR) cooler tube, intake manifold tube and inlet tube.
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