GM Service Manual Online
For 1990-2009 cars only

Generator Replacement 3.1L L82 Engine

Removal Procedure

  1. Disconnect the negative cable from the battery terminal. Refer to

    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.

    in General Information.
  2. Remove the acoustic engine cover.
  3. Remove the accessory drive belt at the generator.

  4. Object Number: 45670  Size: SH
  5. Remove the bolts from the generator.
  6. Remove the steering gear pipe clip and the steering gear pipe nut. Refer to SECTION 3B.
  7. Remove the stud from the generator.
  8. Disconnect the electrical connector from the generator.

  9. Object Number: 45671  Size: SH
  10. Loosen the generator front braces and the generator rear braces from the upper intake manifold.
  11. Remove the nut from the generator output (BAT) terminal.
  12. Disconnect the battery positive lead from the generator output (BAT) terminal.
  13. Remove the generator.

Installation Procedure


    Object Number: 45671  Size: SH
  1. Position the generator to the bracket.
  2. Connect the battery positive lead to the generator output (BAT) terminal.
  3. Install the nut to the generator output (BAT) terminal.
  4. Tighten
    Tighten the nut to 20 N·m (15 lb ft).

    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.

  5. Hand start the generator front braces and the generator rear braces to the intake manifold.
  6. Connect the electrical connector to the generator.
  7. Hand start the stud to the generator.

  8. Object Number: 45670  Size: SH
  9. Install the bolts to the generator.
  10. Tighten
    Tighten the bolts and the screws to 50 N·m (37 lb ft).

    Make sure that tightening the brace nuts does NOT bind the generator.

  11. Install the generator front brace nuts and the generator rear brace nuts to the intake manifold.
  12. Tighten
    Tighten the nuts to 25 N·m (18 lb ft).

  13. Install the stud to the generator.
  14. Tighten
    Tighten the stud to 25 N·m (18 lb ft).

  15. Install the steering gear pipe clip and the steering gear pipe nut. Refer to SECTION 3B.
  16. Connect the accessory drive belt to the generator.
  17. Install the acoustic engine cover.
  18. Connect the negative cable to the battery terminal.