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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 >> Throttle Body Assembly 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: Engine Wiring Harness Electrical Connectors And Clip
    GM1960882Courtesy of GENERAL MOTORS CORP.
    CAUTION:

    Handle the electronic throttle control components carefully. Use cleanliness in order to prevent damage. Do not drop the electronic throttle control components. Do not roughly handle the electronic throttle control components. Do not immerse the electronic throttle control components in cleaning solvents of any type.

    CAUTION:

    DO NOT for any reason, insert a screwdriver or other small hand tools into the throttle body to hold open the throttle plate, as the wedge inside the throttle body could be damaged.

  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .
  2. Disconnect the engine wiring harness electrical connector (2) from the electronic throttle control.
    3. Fig 2: Throttle Body Assembly
    GM1401966Courtesy of GENERAL MOTORS CORP.
  3. Remove the throttle body nuts (507) and bolts (538).
  4. Remove the throttle body (508).
  5. Remove and discard the throttle body gasket (509).
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