GM Service Manual Online
For 1990-2009 cars only

The generator does not require periodic lubrication. The rotor shaft is mounted on bearings. Each bearing contains a permanent grease supply. Periodically check the mounting bolts for tightness, and the drive belt tension. The drive belt is self-adjusting, within the operating limits of the tensioner. Refer to Drive Belt Tensioner Diagnosis .

Removal Procedure

Note: Service the generator as a complete unit.


    Object Number: 1679874  Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the washer solvent container. Refer to Windshield Washer Solvent Container Replacement .
  3. Disconnect the windshield wiper transmission link in front of the wiper motor and position out of the way. Refer to Windshield Wiper System Module Replacement .
  4. Rotate the engine forward. Refer to Rotating the Engine for Service Access .
  5. Remove the drive belt. Refer to Drive Belt Replacement .
  6. Remove the engine harness to generator output wire nut.
  7. Remove the engine harness output wire from the generator.
  8. Disconnect the engine harness electrical connector (3) from the generator.

  9. Object Number: 1584688  Size: SH
  10. Remove the nut holding the power steering lines to the stud on back of generator.
  11. Position the power steering lines aside.
  12. Disconnect the wire harness from the retainers on the upper and lower right front shock tower.
  13. Remove the idler pulley bolt and pulley on the right front side of the engine.
  14. Remove the generator lower bolt and stud.

  15. Object Number: 1681281  Size: SH
  16. Remove the generator upper bolt (3).
  17. Remove the generator.

Installation Procedure


    Object Number: 1584688  Size: SH
  1. Install the generator.
  2. Install the generator lower bolt and stud until snug.
  3. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1681281  Size: SH
  4. Install the generator upper bolt (3) and tighten the bolts/stud to 50 N·m (37 lb ft) .

  5. Object Number: 1679874  Size: SH
  6. Install the idler pulley and bolt on the right front side of the engine.
  7. Connect the wire harness to the retainers on the upper and lower right front shock tower.
  8. Position the power steering lines and retainer to the stud on the generator bracket.
  9. Install the nut holding the power steering lines on the back of the generator.
  10. Connect the engine harness electrical connector (3) to the generator.
  11. Install the engine harness ground (2) to the generator.
  12. Install the engine harness ground nut (1) and tighten to 30 N·m (22 lb ft) .
  13. Install the drive belt. Refer to Drive Belt Replacement .
  14. Position the engine into the normal location and install the engine mount strut bolts. Refer to Engine Mount Strut Replacement - Left Side and Engine Mount Strut Replacement - Right Side .
  15. Connect the windshield wiper transmission. Refer to Windshield Wiper System Module Replacement .
  16. Install the washer solvent container. Refer to Windshield Washer Solvent Container Replacement .
  17. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .