GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the battery negative cable.
  2. Remove the intake air resonator. Refer to Intake Air Resonator Replacement in Engine Controls.
  3. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical.
  4. Remove the coolant heater, if equipped. Refer to Coolant Heater Replacement in Engine Cooling.
  5. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  6. Remove the generator cooling duct.

  7. Object Number: 217393  Size: SH
  8. Remove the field coil terminal nut and lead (1).
  9. Remove the battery terminal nut and lead (2).

  10. Object Number: 217395  Size: SH
  11. Remove the following generator mounting components:
  12. 9.1. The upper mounting nut (4)
    9.2. The lower mounting nut
    9.3. The lower mounting bolt (2)
  13. Push out the upper mounting bolt through the generator and the bracket.
  14. Lower the vehicle.
  15. Remove the generator (3).

Installation Procedure


    Object Number: 217395  Size: SH
  1. Position the generator (3) in the mounting position.
  2. Raise the vehicle on a suitable support. Refer to Lifting and Jacking the Vehicle in General Information.
  3. Insert the upper mounting bolt (1) into the generator.
  4. Install the lower mounting bolt (2).
  5. 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.

  6. Install the lower mounting nut.
  7. Tighten
    Tighten the lower mounting bolt and nut to 35 N·m (26 lb ft).

  8. Install the upper mounting nut (4).
  9. Tighten
    Tighten the upper mounting bolt and nut to 40 N·m (30 lb ft).

  10. Install the generator cooling duct.

  11. Object Number: 217393  Size: SH
  12. Install the field coil terminal lead and nut (1).
  13. Tighten
    Tighten the nut to 3.5 N·m (31 lb in).

  14. Install the battery terminal lead and nut (2).
  15. Tighten
    Tighten the nut to 8 N·m (71 lb in).

  16. Lower the vehicle.
  17. Install the coolant heater, if equipped. Refer to Coolant Heater Replacement .
  18. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical.
  19. Install the intake air resonator. Refer to Intake Air Resonator Replacement in Engine Controls.
  20. Connect the negative battery cable.
  21. Tighten
    Tighten the negative battery cable nut to 13 N·m (115 lb in).

  22. Reprogram all applicable accessories as required. Refer to Reprogramming Accessories After Battery Disconnect .