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Home >> Hummer >> 2009 >> H3 Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.7L - Introduction >> Repair Instructions >> Secondary Air Injection Pump Replacement >> Removal Procedure
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Removal Procedure

    Fig 1: Removing/Installing Air Injection (AIR) Pump Inlet & Outlet Hoses
    GM1749357Courtesy of GENERAL MOTORS CORP.
  1. Open the hood.
  2. From under the hood, disconnect the secondary air injection (AIR) pump inlet hose quick connect fitting (1) from the pump. Refer to Plastic Collar Quick Connect Fitting Service .
  3. Disconnect the AIR pump outlet hose quick connect fitting (2) from the pump. Refer to Plastic Collar Quick Connect Fitting Service .
  4. Remove the engine shield. Refer to Engine Shield Replacement .
    5. Fig 2: Identifying AIR Pump Wiring Harness Connector
    GM1749359Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the engine wiring harness electrical connector from the AIR pump wiring harness electrical connector.
    6. Fig 3: Releasing/Connecting AIR Pump Wiring Harness Connector
    GM1749365Courtesy of GENERAL MOTORS CORP.
  6. Squeeze the AIR pump wiring harness electrical connector clip (1) together and push up in order to separate the clip/connector from the bracket.
  7. Open the AIR pump wiring harness clip (2) and remove the harness from the clip.
    8. Fig 4: Removing/Installing AIR Pump
    GM1749367Courtesy of GENERAL MOTORS CORP.
  8. Remove the AIR pump nuts (1).
  9. Lower the vehicle.
  10. Reposition the AIR pump inlet and outlet hoses as necessary in order to remove the pump.
  11. Remove the AIR pump.
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