GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Impala 🢒 Engine 🢒 Engine Electrical 🢒 Generator Replacement

Generator Replacement LS4

Removal Procedure

    Object Number: 1552786 Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  2. Remove the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement.
  3. Remove the drive belt. Refer to Drive Belt Replacement - Accessory.
  4. Disconnect the generator electrical connector (2).
  5. Position aside the protective boot (1) from the generator output BAT terminal for access.
  6. Remove the generator output BAT terminal nut (4) and remove the positive battery lead (3) from the generator.

    7. Object Number: 1552788 Size: SH
  7. Remove the generator bolts and generator.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1552788 Size: SH
  1. Install the generator and bolts.

    2. Tighten
    Tighten the bolts to 50 N·m (37 lb ft).


    Object Number: 1552786 Size: SH
  2. Install the positive battery lead (3) and generator output BAT terminal nut (4) to the generator.

    3. Tighten
    Tighten the nut to 20 N·m (15 lb ft).

  3. Position the protective boot (1) to the generator output BAT terminal.
  4. Connect the generator electrical connector (2).
  5. Install the drive belt. Refer to Drive Belt Replacement - Accessory.
  6. Install the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement.
  7. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.

Generator Replacement RPOs LZE/LZ4/LZ8

Removal Procedure

    Object Number: 1608869 Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  2. Remove the drive belt. Refer to Drive Belt Replacement or Drive Belt Replacement.
  3. Reposition the protective boot (2) from the generator output BAT terminal.
  4. Remove the generator output BAT terminal nut (5).
  5. Remove the engine harness terminal (4) from the generator.
  6. Disconnect the generator electrical connector (3).

    7. Object Number: 1617020 Size: SH
  7. Remove the generator bolt and stud.

    8. Object Number: 1617023 Size: SH
  8. Remove the generator bolt.
  9. Remove the generator.

Installation Procedure

    Object Number: 1617023 Size: SH
  1. Install the generator.
  2. Install the generator bolt until snug.

    3. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1617020 Size: SH
  3. Install the generator bolt and stud.

    4. Tighten
    Tighten the bolts/stud to 50 N·m (37 lb ft).


    Object Number: 1608869 Size: SH
  4. Connect the generator electrical connector  (3).
  5. Install the engine harness terminal (4) to the generator.
  6. Install the generator output BAT terminal nut (5).

    7. Tighten
    Tighten the nut to 30 N·m (22 lb ft).

  7. Position the protective boot (2) to the generator output BAT terminal.
  8. Install the drive belt. Refer to Drive Belt Replacement or Drive Belt Replacement.
  9. Connect the negative battery negative cable. Refer to Battery Negative Cable Disconnection and Connection.