GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 340790  Size: SH
  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the engine cooling fan. Refer to Fan Clutch Replacement in Engine Cooling.
  3. Remove the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 4.3L.
  4. Remove the generator. Refer to Generator Replacement .
  5. Remove the engine wiring harness bracket from the generator mounting bracket.
  6. Remove the drive belt tensioner. Refer to Drive Belt Tensioner Replacement in Engine Mechanical - 4.3L.
  7. Remove the drive belt idler pulley. Refer to Drive Belt Idler Pulley Replacement - Right Side in Engine Mechanical - 4.3L.

  8. Object Number: 196643  Size: SH
  9. Remove the 3 bolts and nut holding the generator mounting bracket to the engine.
  10. Slide the generator mounting bracket off of the stud.

Installation Procedure


    Object Number: 196643  Size: SH
  1. Slide the generator mounting bracket onto the stud.
  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 2 generator mounting bracket bolts and the nut.
  4. Tighten
    Tighten the generator mounting bracket bolts and nut to 41 N·m (30 lb ft).

  5. Install the drive belt idler pulley. Refer to Drive Belt Idler Pulley Replacement - Right Side in Engine Mechanical - 4.3L.
  6. Install the drive belt tensioner. Refer to Drive Belt Tensioner Replacement in Engine Mechanical - 4.3L.

  7. Object Number: 340790  Size: SH
  8. Install the engine wiring harness bracket to the generator mounting bracket.
  9. Tighten
    Tighten the engine wiring harness bracket bolt to 25 N·m (18 lb ft).

  10. Install the generator. Refer to Generator Replacement .
  11. Install the drive belt. Refer to Drive Belt Replacement in Engine Mechanical - 4.3L.
  12. Install the engine cooling fan. Refer to Fan Clutch Replacement in Engine Cooling.
  13. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .