GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2001 🢒 Aurora 🢒 Engine 🢒 Engine Controls - 4.0L 🢒 Secondary Air Injection Pump Replacement - Bank 1

Removal Procedure
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the retaining screws from the front portion of the right front wheel well/splash shield.
  3. Lower the splash shield far enough to gain access to the AIR pump assembly.
  4. Loosen and lower the AIR exhaust hose pinch clamp.
  5. Disconnect the AIR exhaust hose from the AIR pump.
  6. Carefully remove the AIR inlet hose/filter assembly from the AIR pump.
  7. Disconnect the AIR pump electrical connector.
  8. Loosen the lower AIR to cradle bracket nuts.
  9. Remove the upper AIR pump to cradle bolt.
  10. Lift up and pull out to remove the AIR pump from the cradle bracket.

Installation Procedure
  1. Install the lower AIR pump bolts/nuts into the cradle bracket and push down.

    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.

  2. Install the upper AIR pump to cradle bolt.

    3. Tighten
    Tighten the upper AIR pump to cradle bolt to 9 N·m (80 lb in).

    Tighten
    Tighten the lower AIR pump to cradle bolt/nuts to 9 N·m (80 lb in).

    Important: Listen for a CLICK in order to ensure proper connection of the AIR inlet hose/filter to the AIR pump.

  3. Ensure that the rubber O-ring is on the bottom of the AIR pump.
  4. Install the AIR inlet hose/filter assembly to the AIR pump.
  5. Install the AIR pump exhaust hose to the AIR pump, and secure the hose with a hose clamp.
  6. Reconnect the AIR pump electrical connector.
  7. Raise the wheel well/splash shield into position.
  8. Re-install the wheel well/splash shield retaining screws.
  9. Lower the vehicle.