GM Service Manual Online
For 1990-2009 cars only

Generator Bracket Replacement L65

Removal Procedure


    Object Number: 520123  Size: SH
  1. Disconnect both the battery negative cables from the batteries. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the upper fan shroud from the radiator. Refer to Fan Shroud Replacement in Engine Cooling.
  3. Remove the generator from the generator bracket. Refer to Generator Replacement .
  4. Remove the drive belt tensioner from the generator bracket.

  5. Object Number: 105622  Size: SH
  6. Remove the vacuum pump from the generator bracket. Refer to Vacuum Pump Replacement in Engine Mechanical - 6.5L.
  7. Remove the generator bracket bolts from the engine block.
  8. Remove the generator bracket from the vehicle.

Installation Procedure


    Object Number: 105622  Size: SH
  1. Install the generator bracket to the vehicle.
  2. 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.

  3. Install the generator bracket bolts to the engine block.
  4. Tighten
    Tighten the bolts and nuts to 50 N·m (37 lb ft).


    Object Number: 520123  Size: SH
  5. Install the drive belt tensioner to the generator bracket.
  6. Tighten
    Tighten tensioner bolt to 50 N·m (37 lb ft).

  7. Install the vacuum pump to the generator bracket. Refer to Remove the vacuum pump from the generator bracket. Refer to Vacuum Pump Replacement in Engine Mechanical - 6.5L.
  8. Install the generator to the generator bracket. Refer to Generator Replacement .
  9. Install the upper fan shroud to the radiator. Refer to Fan Shroud Replacement in Engine Cooling.
  10. Connect both the battery negative cables to the batteries. Refer to Battery Negative Cable Disconnection and Connection .

Generator Bracket Replacement L18

Removal Procedure


    Object Number: 747120  Size: SH
  1. Remove the generator. Refer to Generator Replacement .
  2. Remove the drive belt tensioner. Refer to Drive Belt Tensioner Replacement in Engine Mechanical - 8.1L .
  3. Remove the drive belt idler pulley. Refer to Drive Belt Idler Pulley Replacement in Engine Mechanical - 8.1L .
  4. Remove the generator bracket bolt (2) and nut.

Installation Procedure


    Object Number: 747120  Size: SH

    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.

  1. Install the generator bracket bolt (2) and nut.
  2. Tighten

        • Tighten the generator bracket bolt to 50 N·m (37 lb ft).
        • Tighten the generator bracket nut to 41 N·m (30 lb ft).
  3. Install the drive belt idler pulley. Refer to Drive Belt Idler Pulley Replacement in Engine Mechanical - 8.1L .
  4. Install the drive belt tensioner. Refer to Drive Belt Tensioner Replacement in Engine Mechanical - 8.1L .
  5. Install the generator. Refer to Generator Replacement .