GM Service Manual Online
For 1990-2009 cars only

Starter Replacement LA3, LY9

Removal Procedure

  1. Remove the starter heat shield. Refer to Starter Shield Replacement .
  2. Remove the right side engine mount bracket. Refer to Engine Mount Bracket Replacement - Right Side .

  3. Object Number: 772397  Size: SH
  4. Remove the starter solenoid "S" terminal nut (1) and disconnect the lead (2) from the starter.

  5. Object Number: 772398  Size: SH
  6. Remove the starter terminal nut (2) and disconnect the battery positive cable (1) from the starter.

  7. Object Number: 772389  Size: SH
  8. Remove the starter motor mounting bolts.
  9. Remove the starter motor from the engine.

Installation Procedure


    Object Number: 772389  Size: SH
  1. Position the starter motor to the engine.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the starter motor mounting bolts
  4. Tighten
    Tighten the starter motor mounting bolts to 40 N·m (30 lb ft).


    Object Number: 772398  Size: SH
  5. Connect the battery positive cable (1) to the starter and install the starter terminal nut (2).
  6. Tighten
    Tighten the battery positive cable to starter terminal nut to 12.5 N·m (111 lb in).


    Object Number: 772397  Size: SH
  7. Connect the lead (2) to the starter solenoid and install the starter solenoid "S" terminal nut (1).
  8. Tighten
    Tighten the starter solenoid "S" terminal nut to 5 N·m (44 lb in).

  9. Install the right side engine mount bracket. Refer to Engine Mount Bracket Replacement - Right Side .
  10. Install the starter heat shield. Refer to Starter Shield Replacement .

Starter Replacement LY7

Removal Procedure

  1. Turn the ignition OFF.
  2. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .

  3. Object Number: 887710  Size: SH
  4. Remove the starter solenoid electrical connector from the starter.

  5. Object Number: 887713  Size: SH
  6. Remove the starter terminal nut (1) and the battery positive cable (2) from the starter.

  7. Object Number: 887715  Size: SH
  8. Remove the starter motor bolts.
  9. Remove the starter motor.

Installation Procedure


    Object Number: 887715  Size: SH
  1. Install the starter motor.
  2. Notice: Refer to Fastener Notice in the Preface section.

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


    Object Number: 887713  Size: SH
  5. Install the battery positive cable (2) to the starter and install the starter terminal nut (1).
  6. Tighten
    Tighten the battery positive cable nut to 13 N·m (115 lb in).


    Object Number: 887710  Size: SH
  7. Install the electrical connector to the starter solenoid.

Starter Replacement LS6

Removal Procedure

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.


    Object Number: 1455617  Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the right side catalytic converter. Refer to Catalytic Converter Replacement - Right Side in Engine Exhaust.

  3. Object Number: 1455601  Size: SH
  4. Remove the positive battery cable nut.
  5. Remove the positive battery cable terminal and the engine harness leads from the solenoid.
  6. Remove the positive assurance pin and disconnect the wire lead from the starter solenoid.

  7. Object Number: 1455608  Size: SH
  8. Support the starter motor.
  9. Remove the starter motor bolts.
  10. Remove the starter motor.

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1455608  Size: SH
  1. Position the starter motor to the block.
  2. Install the starter motor bolts.
  3. Tighten
    Tighten the starter motor bolts to 50 N·m (37 lb ft).


    Object Number: 1455601  Size: SH
  4. Install the wire and positive assurance pin to the starter solenoid.
  5. Install the battery positive cable to the starter terminal.
  6. Install the battery positive cable to starter terminal nut.
  7. Tighten
    Tighten the battery positive cable to starter terminal nut to 10 N·m (89 lb in).


    Object Number: 1455617  Size: SH
  8. Install the right side catalytic converter. Refer to Catalytic Converter Replacement - Right Side in Engine Exhaust.
  9. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .