GM Service Manual Online
For 1990-2009 cars only

Secondary Air Injection Pipe Replacement - Bank 1 Intermediate Pipe - Single Pump

Removal Procedure

  1. Loosen and lower pinch clamp connecting the bank 1 intermediate pipe/hose to the crossover pipe/hose.
  2. Loosen and lower the pinch clamp connecting the bank 1 intermediate pipe/hose to the AIR shut-off valve.
  3. Remove the nut securing the bank 1 intermediate pipe/hose to the transaxle.
  4. Remove the nut securing the bank 1 intermediate pipe/hose to the AIR shut-off valve bracket.
  5. Disconnect the EGR pipe.
  6. Carefully remove the bank 1 intermediate pipe/hose from the engine.

Installation Procedure

  1. Carefully install the bank 1 intermediate pipe/hose.
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Reconnect the EGR pipe.
  4. Tighten
    Tighten the EGR pipe to 60 N·m (43 lb ft).

  5. Install the nuts securing the bank 1 intermediate pipe/hose to the AIR shut-off valve bracket and the transaxle.
  6. Tighten
    Tighten the nuts to 9 N·m (80 lb in).

  7. Install the hose and pinch clamp connecting the bank 1 intermediate pipe/hose to the AIR shut-off valve.
  8. Install the hose and pinch clamp connecting the bank 1 intermediate pipe/hose to the AIR crossover pipe/hose.

Secondary Air Injection Pipe Replacement - Bank 1 Crossover Pipe - Single Pump

Removal Procedure

    Caution: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

  1. Raise the vehicle.
  2. Remove the retaining screws from the front portion of the left front wheel well/splash shield.
  3. Lower the splash shield far enough to gain access to the AIR pump.
  4. Remove the retaining clamp from the pump crossover hose.
  5. Remove the ties retaining the AIR crossover pipe to the engine cradle.
  6. Loosen and lower the pinch clamp connecting the AIR crossover pipe/hose to the bank 1 intermediate pipe/hose.
  7. Remove the AIR crossover pipe/hose.

Installation Procedure

  1. Install the crossover pipe/hose to the AIR pump outlet hose and to the bank 1 intermediate pipe/hose.
  2. Install the crossover pipe/hose to the intermediate pipe/hose pinch clamp.
  3. Install the clamp connecting the crossover to the AIR outlet hose.
  4. Install the tie straps in order to secure the crossover pipe/hose to the engine cradle.

Secondary Air Injection Pipe Replacement - Bank 1 Shutoff Outlet Pipe - Single Pump

Removal Procedure

  1. Remove the bank 1 AIR shut-off valve. Refer to Secondary Air Injection Control Valve Replacement - Bank 1 .
  2. Remove the 2 nuts securing the shut-off valve to the bank 1 AIR outlet pipe
  3. Remove the bank 1 AIR outlet pipe.

Installation Procedure

  1. Install the bank 1 AIR outlet pipe and new gasket to the bank 1 AIR shut-off valve.
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Install the 2 nuts securing the bank 1 AIR outlet pipe to the bank 1 AIR shut-off valve.
  4. Tighten
    Tighten the 2 nuts to 9 N·m (80 lb in).

  5. Install the bank 1 AIR shut-off valve. Refer to Secondary Air Injection Control Valve Replacement - Bank 1 .

Secondary Air Injection Pipe Replacement - Bank 1 AIR Pipes Bank 1 - Dual Pump

Removal Procedure

  1. Remove the vacuum connections from the AIR check valve.
  2. Remove the AIR Vacuum Control Solenoid from the rear AIR check valve bracket.
  3. Loosen and lower the pinch clamp holding the AIR exhaust hose to the rear AIR check valve.
  4. Remove the nuts retaining the AIR exhaust hose to the AIR check valve bracket.
  5. Remove the AIR exhaust hose from the AIR check valve.
  6. Remove the nuts retaining the AIR check valve to exhaust manifold pipe to the exhaust manifold.
  7. Remove the bolts retaining the AIR check valve bracket to the engine.
  8. Remove the AIR check valve and the exhaust manifold pipe.
  9. Remove the exhaust manifold pipe from the AIR check valve.

Installation Procedure

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  1. Install the exhaust manifold pipe to the rear AIR check valve.
  2. Tighten
    Tighten the nuts to 9 N·m (80 lb in).

  3. Install the exhaust manifold pipe, the gasket, and the retaining nuts to the exhaust manifold.
  4. Install the bolts retaining the AIR check valve bracket to the engine.
  5. Tighten
    Tighten the nuts and the bolt to 9 N·m (80 lb in).

    Tighten
    Tighten the exhaust manifold pipe nuts to 9 N·m (80 lb in).

  6. Install the AIR exhaust hose and clamp the hose to the AIR check valve.
  7. Tighten
    Tighten the nuts retaining the AIR exhaust hose to the AIR bracket to 9 N·m (80 lb in).

  8. Install the AIR Vacuum Control Solenoid to the AIR check valve bracket.
  9. Tighten
    Tighten the nuts and the bolt to 9 N·m (80 lb in).

  10. Reconnect the AIR vacuum connections.