GM Service Manual Online
For 1990-2009 cars only

Generator Replacement LN2

Removal Procedure

  1. Disconnect the negative battery cable at the battery. 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.

    .
  2. Disconnect the generator electrical connections.
  3. Remove the generator drive belt.
  4. Remove the through bolts that retain the generator.

  5. Object Number: 97634  Size: SH
  6. Remove the generator.

Installation Procedure


    Object Number: 97634  Size: SH
  1. Install the generator to the mounting bracket with the bolts and the washers.
  2. install the generator nuts
  3. Tighten

        • Tighten the generator nuts (2) to 43 N·m (32 lb ft).
        • Tighten the generator bolt (5) to 50 N·m (37 lb ft).
        • Tighten the generator bolt (1) to 30 N·m (22 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.

  4. Install the generator drive belt.
  5. Caution: Before removing or installing any electrical unit, or when a tool or equipment could easily come in contact with "live" or "hot all the times" exposed electrical terminals, disconnect the negative battery cable to help prevent personal injury and/or damage to the vehicle or components. Unless instructed otherwise, the ignition switch must be in the OFF or LOCK position.

  6. Connect the generator electrical connections.
  7. Connect the negative cable at the battery.

Generator Replacement L82

Removal Procedure

  1. Disconnect the negative battery cable. 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 serpentine drive belt. Refer to Drive Belt Replacement .
  3. Caution: Before removing or installing any electrical unit, or when a tool or equipment could easily come in contact with "live" or "hot all the times" exposed electrical terminals, disconnect the negative battery cable to help prevent personal injury and/or damage to the vehicle or components. Unless instructed otherwise, the ignition switch must be in the OFF or LOCK position.

  4. Disconnect the electrical connections and the power steering line clip.

  5. Object Number: 98397  Size: SH
  6. Remove the rear generator brace.

  7. Object Number: 98398  Size: SH
  8. Remove the generator air intake connector.

  9. Object Number: 98393  Size: SH
  10. Remove the generator bolts. Remove the generator.

Installation Procedure


    Object Number: 98393  Size: SH
  1. Install the generator
  2. Install the generator bolts.
  3. Install the generator nut.
  4. Tighten
    Tighten the generator nut to 50 N·m (37 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.


    Object Number: 98398  Size: SH
  5. Install the generator air intake connector.

  6. Object Number: 98397  Size: SH
  7. Install the rear generator brace.
  8. Caution: Before removing or installing any electrical unit, or when a tool or equipment could easily come in contact with "live" or "hot all the times" exposed electrical terminals, disconnect the negative battery cable to help prevent personal injury and/or damage to the vehicle or components. Unless instructed otherwise, the ignition switch must be in the OFF or LOCK position.

  9. Reconnect the electrical connections and reinstall the power steering line clip.
  10. Install the serpentine drive belt. Refer to Drive Belt Replacement .
  11. Connect the negative battery cable.