GM Service Manual Online
For 1990-2009 cars only

Generator Replacement With 4.2L Engine

Removal Procedure

  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the drive belt. Refer to Drive Belt Replacement .

  3. Object Number: 754344  Size: SH
  4. Remove the air conditioning (A/C) line mounting bracket bolt at the engine lift hook.

  5. Object Number: 750247  Size: SH
  6. Remove the right engine lift hook bolts and remove the lift hook.

  7. Object Number: 753668  Size: SH
  8. Remove the 3 generator mounting bolts and remove the generator.

  9. Object Number: 754357  Size: SH
  10. Disconnect the battery positive cable nut (1) on the generator.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 754357  Size: SH
  1. Install the battery positive cable to the generator and secure the positive cable with the nut (1).
  2. Tighten
    Tighten the generator positive cable nut to 9 N·m (80 lb in).

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


    Object Number: 750247  Size: SH
  5. Install the engine lift hook and secure the lift hook with 2 bolts.
  6. Tighten
    Tighten the bolts to 50 N·m (37 lb ft).


    Object Number: 754344  Size: SH
  7. Install the A/C line bracket to the lift hook and secure the bracket with the bolt.
  8. Tighten
    Tighten the A/C line bracket bolt to 10 N·m (89 lb in).

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

Generator Replacement 5.3L and 6.0L Engines

Removal Procedure


    Object Number: 898329  Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  2. Remove the accessory drive belt. Refer to Drive Belt Replacement - Accessory for the 5.3L engine or Drive Belt Replacement - Accessory for the 6.0L engine.
  3. Disconnect the generator electrical connector.

  4. Object Number: 899614  Size: SH
  5. Remove the generator cable (3) from the generator, perform the following:
  6. 4.1. Slide the boot (1) down revealing the terminal stud.
    4.2. Remove the generator cable nut (2) from the terminal stud.
    4.3. Remove the generator cable (3).

    Object Number: 899619  Size: SH
  7. Remove the generator bolts.
  8. Remove the generator.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 899619  Size: SH
  1. Install the generator.
  2. Install the generator bolts.
  3. Tighten
    Tighten the bolts to 50 N·m (37 lb ft).


    Object Number: 899614  Size: SH
  4. Install the generator cable (3) to the generator, perform the following:
  5. 3.1. Install the generator cable (3).
    3.2. Install the generator cable nut (2) to the terminal stud.

    Tighten
    Tighten the nut to 9 N·m (80 lb in).

    3.3. Slide the boot (1) over the terminal stud.

    Object Number: 898329  Size: SH
  6. Connect the generator electrical connector.
  7. Install the accessory drive belt. Refer to Drive Belt Replacement - Accessory for the 5.3L engine or Drive Belt Replacement - Accessory for the 6.0L engine.
  8. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.