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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 357 (Engine Controls And Fuel - Hybrid (LZ1) - Repair Instructions) >> Repair Instructions >> Air Cleaner Resonator Outlet Duct Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: PCV Tube
    GM1696754Courtesy of GENERAL MOTORS CORP.
  1. Remove the intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .
  2. Remove the positive crankcase ventilation (PCV) line (1) from the air cleaner outlet duct.
    3. Fig 2: Air Cleaner Outlet Duct And Inlet Hose Clamp Clip
    GM1965341Courtesy of GENERAL MOTORS CORP.
  3. Remove the radiator inlet hose clamp clip (2) from the air cleaner outlet duct (1).
    4. Fig 3: Air Cleaner Outlet Duct And Clamps
    GM1965334Courtesy of GENERAL MOTORS CORP.
  4. Loosen the air cleaner outlet duct clamp (1) at the mass air flow (MAF)/intake air temperature (IAT) sensor.
  5. Loosen the air cleaner outlet duct clamp (2) at the throttle body.
  6. Lift up the air cleaner outlet duct at the resonator tab in order to separate the resonator from the stud on the intake manifold.
  7. Remove the air cleaner outlet duct (3) from the throttle body and MAF/IAT sensor.
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