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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Engine Control System & Fuel System - 3.8L - Introduction (2 Of 2)) >> Repair Instructions >> Secondary Air Injection Shutoff Valve Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying AIR Pump Outlet Hose Clamps & Hose Nut
    GM1749715Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  2. Remove the AIR pump outlet hose nut (1).
  3. Squeeze the tangs together on the AIR pump outlet hose clamp (2) at the valve until they lock, and reposition the clamp.
    4. Fig 2: Identifying AIR Check Valve Engine Wiring Harness Electrical Connector
    GM1749725Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the engine wiring harness electrical connector from the AIR check valve.
    5. Fig 3: Identifying Engine Sight Shield Bracket & Bolts
    GM1749727Courtesy of GENERAL MOTORS CORP.
  5. Remove the engine sight shield bracket bolts (1).
  6. Remove the engine sight shield bracket.
    7. Fig 4: Identifying AIR Check Valve Bracket Upper Bolts, Exhaust Manifold Nuts & Exhaust Manifold Gasket
    GM1749726Courtesy of GENERAL MOTORS CORP.
  7. Remove the AIR check valve bracket upper bolts (1).
  8. Remove the AIR check valve to exhaust manifold nuts (2).
  9. Remove the AIR check valve.
  10. Remove and discard the AIR check valve to exhaust manifold gasket (3).
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