GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 74059  Size: SH
  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. Object Number: 74065  Size: SH
  3. Disconnect the regulator connector and the battery-to-generator terminal from the back of the generator.

  4. Object Number: 74089  Size: SH
  5. Release the accessory drive belt tensioner (3).
  6. Remove the accessory drive belt (5) from the generator pulley (6).

  7. Object Number: 74066  Size: SH
  8. Remove the generator rear mounting bracket and bolts.

  9. Object Number: 74067  Size: SH
  10. Remove the generator mounting bolts.
  11. Remove the generator from the bracket.

Installation Procedure


    Object Number: 74067  Size: SH
  1. Install the generator to the bracket.
  2. Install the generator mounting bolts.
  3. Tighten
    Tighten the generator mounting bolts 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: 74066  Size: SH
  4. Install the generator rear mounting bracket and bolts.
  5. Tighten
    Tighten the generator rear mounting bracket bolts to 50 N·m (37 lb ft).


    Object Number: 74089  Size: SH
  6. Install the accessory drive belt (5) to the generator pulley.

  7. Object Number: 74065  Size: SH
  8. Connect the regulator connector and the battery-to-generator terminal to the back of the generator.
  9. Tighten
    Tighten the battery to generator terminal nut to 13 N·m (10 lb in).

  10. Connect the negative battery cable.
  11. Tighten
    Tighten the negative battery cable bolt to 15 N·m (11 lb ft).