GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 2001 🢒 Aurora 🢒 Engine 🢒 Engine Controls - 3.5L 🢒 Secondary Air Injection Crossover Pipe/Hose Replacement

Removal Procedure

    Object Number: 650766 Size: SH
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the fasteners from the front portion of the splash shield in the left front wheel well. Refer to Wheelhouse Panel Replacement in Body and Accessories.
  3. Reposition the splash shield in order to gain access to the pump and bracket assembly.
  4. Compress the pinch clamp and remove the outlet hose (3) from the pump.
  5. Reposition the hose into the engine compartment.
  6. Remove the crossover pipe (4) fasteners.
  7. Lower the vehicle.
  8. Remove the air intake duct. Refer to Air Cleaner Inlet Duct Replacement .
  9. Remove the master cylinder fasteners.
  10. Reposition the master cylinder.
  11. Remove the crossover pipe fasteners.
  12. Remove the crossover pipe from the shut-off valves and the vehicle.

Installation Procedure
  1. Install the crossover pipe to the shut-off valves and the vehicle.
  2. Install the crossover pipe fasteners.
  3. Reposition the master cylinder to the booster.

    4. 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.

  4. Install the master cylinder fasteners.

    5. Tighten
    Tighten the fasteners to 23 N·m (17 lb ft).

  5. Install the air intake duct. Refer to Air Cleaner Inlet Duct Replacement .
  6. Raise the vehicle.

    7. Object Number: 601190 Size: SH
  7. Install the crossover pipe fasteners.

    8. Tighten
    Tighten all of the fasteners to 9 N·m (80 lb in).


    Object Number: 650766 Size: SH
  8. Compress the pinch clamp and install the outlet hose to the pump.
  9. Raise the wheel well splash shield into position.
  10. Install the fasteners to the wheel well splash shield.
  11. Lower the vehicle.