GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1650781  Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Disconnect the secondary air injection (AIR) pump outlet hose quick connect fitting at the AIR pump. Refer to Plastic Collar Quick Connect Fitting Service .
  3. Lower the vehicle.
  4. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  5. Remove the AIR pump outlet hose bracket bolt.

  6. Object Number: 1650779  Size: SH
  7. Remove the AIR pump outlet hose bracket nut.
  8. Disconnect the AIR pump outlet hose quick connect fitting at the AIR check valve. Refer to Plastic Collar Quick Connect Fitting Service .
  9. Remove the AIR pump outlet hose/pipe.

Installation Procedure


    Object Number: 1650779  Size: SH
  1. Install the AIR pump outlet hose/pipe bracket to the exhaust manifold heat shield stud.
  2. Connect the AIR pump outlet hose quick connect fitting at the AIR check valve. Refer to Plastic Collar Quick Connect Fitting Service .
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the AIR pump outlet hose bracket nut.
  5. Tighten
    Tighten the nut to 10 N·m (89 lb in).


    Object Number: 1650781  Size: SH
  6. Install the AIR pump outlet hose bracket bolt.
  7. Tighten
    Tighten the bolt to 20 N·m (15 lb ft).

  8. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  9. Raise and suitably support the vehicle.
  10. Connect the AIR pump outlet hose quick connect fitting at the AIR pump. Refer to Plastic Collar Quick Connect Fitting Service .
  11. Lower the vehicle.