GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 LaCrosse 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Secondary Air Injection Shut-Off Valve Outlet Pipe/Hose Replacement

Removal Procedure

    Object Number: 1749715 Size: SH
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.
  2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
  3. Squeeze the tangs together on the AIR pump outlet hose clamp (3) at the pump until they lock, and reposition the clamp.
  4. Remove the AIR pump outlet hose nut (1).
  5. Squeeze the tangs together on the AIR pump outlet hose clamp (2) at the valve until they lock, and reposition the clamp.
  6. Remove the AIR pump outlet hose.

Installation Procedure

    Object Number: 1749715 Size: SH
  1. Install the AIR pump outlet hose to the vehicle.
  2. Install the AIR pump outlet hose to the AIR pump.
  3. Position and release the AIR pump outlet hose clamp (3) at the AIR pump.
  4. Install the AIR pump outlet hose to the AIR check valve.
  5. Position and release the AIR pump outlet hose clamp (2) at the AIR check valve.

    6. Caution: Refer to Fastener Caution in the Preface section.

  6. Install the AIR pump outlet hose nut (1).

    7. Tighten
    Tighten the nut to 9 N·m (80 lb in).

  7. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement.
  8. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.