GM Service Manual Online
For 1990-2009 cars only

Generator Replacement 6.0L

Removal Procedure

  1. Remove the drive belt. Refer to Drive Belt Replacement - Accessory .
  2. Caution: Refer to Battery Disconnect Caution in the Preface section.

  3. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

  4. Object Number: 651874  Size: SH
  5. Disconnect the generator electrical connector (1 and 2).
  6. Remove the battery feed terminal nut (3) from the generator.
  7. Remove the battery feed cable.

  8. Object Number: 74067  Size: SH
  9. Remove the generator mounting bolts.
  10. Remove the generator.

Installation Procedure

  1. Position the generator on the mounting bracket.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the generator bolts.
  4. Tighten
    Tighten the generator bolts to 50 N·m (37 lb ft).


    Object Number: 651874  Size: SH
  5. Connect the generator electrical connector (1 and 2).
  6. Install the battery feed cable.
  7. Install the battery feed terminal nut (3).
  8. Tighten
    Tighten the battery feed cable nut to 13 N·m (10 lb ft).

  9. Install the drive belt. Refer to Drive Belt Replacement - Accessory .
  10. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

Generator Replacement 7.0L

Removal Procedure

  1. Remove the drive belt. Refer to Drive Belt Replacement - Accessory .
  2. Caution: Refer to Battery Disconnect Caution in the Preface section.

  3. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

  4. Object Number: 651874  Size: SH
  5. Disconnect the generator electrical connector (1 and 2).
  6. Remove the battery feed terminal nut (3) from the generator.
  7. Remove the battery feed cable.

  8. Object Number: 74067  Size: SH
  9. Remove the generator mounting bolts.
  10. Remove the generator.

Installation Procedure

  1. Position the generator on the mounting bracket.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the generator bolts.
  4. Tighten
    Tighten the generator bolts to 50 N·m (37 lb ft).


    Object Number: 651874  Size: SH
  5. Connect the generator electrical connector (1 and 2).
  6. Install the battery feed cable.
  7. Install the battery feed terminal nut (3).
  8. Tighten
    Tighten the battery feed cable nut to 13 N·m (10 lb ft).

  9. Install the drive belt. Refer to Drive Belt Replacement - Accessory .
  10. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .