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Home >> Hummer >> 2010 >> H3T Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.7L - Repair Instructions >> Repair Instructions >> Secondary Air Injection Check Valve Replacement >> Removal Procedure

Removal Procedure

    Fig 1: Secondary Air Injection Pump Outlet Hose
    GM1749355Courtesy of GENERAL MOTORS CORP.
  1. Open the hood.
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  3. Disconnect the secondary air injection (AIR) pump outlet hose quick connect fitting from the AIR check valve. Refer to Plastic Collar Quick Connect Fitting Service .
    4. Fig 2: AIR Check Valve Engine Wiring Harness Electrical Connector
    GM1749361Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the engine wiring harness electrical connector (1) from the AIR check valve.
    5. Fig 3: AIR Check Valve, Gasket & Studs
    GM1749363Courtesy of GENERAL MOTORS CORP.
  5. Remove the AIR check valve studs (3).
  6. Remove the AIR check valve (2) and gasket (1). Discard the gasket.
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