GM Service Manual Online
For 1990-2009 cars only

Generator Replacement Gasoline Engines

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.

    .
  2. Disconnect the terminal plug from the back of the generator.
  3. Disconnect the battery lead from the back of the generator.
  4. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical.

  5. Object Number: 84603  Size: SH
  6. Remove the generator mounting bolts.
  7. Remove the generator from the generator mounting bracket.

Installation Procedure


    Object Number: 84603  Size: SH
  1. Install the generator into the generator mounting bracket.
  2. Connect the generator mounting bolts.
  3. Tighten

    1. Tighten the right mounting bolt to 25 N·m (18 lb ft).
    2. Tighten the left mounting bolt to 50 N·m (37 lb ft).
    3. Tighten the mounting bracket bolt at the back of the generator to 25 N·m (18 lb ft).
  4. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical.
  5. Connect the terminal plug to the back of the generator.
  6. Connect the battery lead to the back of the generator.
  7. Tighten
    Tighten to battery terminal nut to 8 N·m (71 lb in).

  8. Connect the negative battery cable.

Generator Replacement Diesel Engines

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.

    .
  2. Disconnect the terminal plug from the back of the generator.
  3. Disconnect the battery lead from the back of the generator.
  4. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical.

  5. Object Number: 84605  Size: SH
  6. Remove the generator mounting bolts.
  7. Remove the generator from the generator mounting bracket.

Installation Procedure


    Object Number: 84605  Size: SH
  1. Install the generator into the generator mounting bracket.
  2. Connect the generator mounting bolts.
  3. Tighten

    1. Tighten the right mounting bolt to 25 N·m (18 lb ft).
    2. Tighten the left mounting bolt to 50 N·m (37 lb ft).
    3. Tighten the mounting bracket bolt at the back of the generator to 25 N·m (18 lb ft).
  4. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical.
  5. Connect the terminal plug to the back of the generator.
  6. Connect the battery lead to the back of the generator.
  7. Tighten
    Tighten to battery terminal nut to 8 N·m (71 lb in).

  8. Connect the negative battery cable.