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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1814 (Engine Mechanical - 2.2L (L61)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Intake Manifold Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Outlet Resonator/Duct Assembly
    GM898897Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the intake air temperature (IAT) sensor connector.
  2. Loosen the clamp at the air cleaner assembly.
  3. Remove the push pin attachment from the outlet resonator/duct assembly to support bracket.
  4. Loosen the clamp at the throttle body assembly.
  5. Disconnect the positive crankcase ventilation (PCV) fresh air vent hose at the outlet duct assembly.
  6. Remove the outlet resonator/duct assembly.
    7. Fig 2: Cover Throttle Body Opening With A Shop Towel
    GM897640Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The mating surfaces between the throttle body to manifold and manifold to cylinder head should be free from dirt and foreign material before servicing.
  7. Cover the throttle body opening with a shop towel and use the shop air to remove any dirt at the base of the throttle body to intake and intake manifold to cylinder head.
    8. Fig 3: Disconnecting/Connecting Throttle Body Electrical Connector
    GM947518Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the harness connector at the throttle body.
    9. Fig 4: Removing/Installing Throttle Body Gasket
    GM947783Courtesy of GENERAL MOTORS CORP.
  9. Remove the throttle body bolts.
  10. Remove the throttle body.
  11. Remove the throttle body gasket.
    12. Fig 5: View Of Shop Towel Over The Throttle Body Opening
    GM951566Courtesy of GENERAL MOTORS CORP.
    NOTE: Cover the intake manifold opening with a shop towel whenever the throttle body is removed to prevent foreign material entry.
  12. Block the intake manifold opening with a clean shop towel to prevent dirt from entering.
    13. Fig 6: Removing/Installing ECM Assembly & Bolts
    GM947702Courtesy of GENERAL MOTORS CORP.
  13. Remove the engine control module (ECM) bolts and set the ECM aside.
  14. Disconnect the electrical connectors (injector harness) attach to the side of the manifold and position the harness away from the manifold and set aside.
  15. Disconnect the manifold absolute pressure (MAP) sensor.
  16. Disconnect the purge hose.
  17. Disconnect the electrical attachment bolt at bottom of the manifold.
  18. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  19. Disconnect the electrical harness clips at the bottom of the manifold.
  20. Lower the vehicle.
    21. Fig 7: Identifying Oil Level Indicator Tube
    GM745887Courtesy of GENERAL MOTORS CORP.
  21. Remove the oil level tube bolt and rotate tube away from the manifold.
  22. Remove the intake manifold bolts and nuts.
  23. Pull the manifold away from the cylinder head.
    24. Fig 8: Disconnecting/Connecting Brake Booster Hose
    GM947798Courtesy of GENERAL MOTORS CORP.
  24. Disconnect the brake booster hose at the manifold by releasing the white tab.
  25. Remove the intake manifold assembly.
    26. Fig 9: Removing/Installing Intake Manifold Gasket
    GM935002Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The intake manifold gasket is not reusable.
  26. Remove the intake manifold gasket and discard.
    27. NOTE: Cover the cylinder head ports with a shop towel to prevent foreign material from entering the cylinder head.
  27. Block the intake manifold to cylinder head openings with a clean shop towel to prevent dirt from entering.
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