GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 LeSabre 🢒 Engine 🢒 Engine Electrical 🢒 Generator Replacement

Generator Replacement L36

Removal Procedure
  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 3.8L.
  3. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical - 3.8L.

    4. Object Number: 439097 Size: SH
  4. Remove the fasteners securing the generator brace.
  5. Remove the generator brace.
  6. Disconnect the wiring harness connector from the generator.
  7. Reposition the protective boot from the generator output BAT terminal for access.
  8. Remove the generator output BAT terminal nut and disconnect the battery positive lead from the generator.

    9. Object Number: 439092 Size: SH
  9. Remove the generator mounting bolts.
  10. Remove the generator from the vehicle.

Installation Procedure

    Object Number: 439092 Size: SH
  1. Position the generator on the engine.

    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 generator mounting bolts.

    3. Tighten
    Tighten the generator mounting bolts to 50 N·m (37 lb ft).

  3. Connect the wiring harness connector to the generator.
  4. Connect the positive lead and install the generator output BAT terminal nut.

    5. Tighten
    Tighten the generator output BAT terminal nut to 12.5 N·m (111 lb in).

  5. Press the protective boot on to the generator output BAT terminal.

    6. Object Number: 439097 Size: SH
  6. Install the generator brace and fasteners.

    7. Tighten

        • Tighten the generator brace nut to 50 N·m (37 lb ft).
        • Tighten the generator brace bolt to 25 N·m (18 lb ft).
  7. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical - 3.8L.
  8. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 3.8L.
  9. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .