GM Service Manual Online
For 1990-2009 cars only

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.

  1. Disconnect the negative battery cable.
  2. Raise the vehicle with a suitable safety stand.
  3. Remove the splash shield.
  4. Remove the flywheel inspection cover bolts.
  5. Remove the cover.

  6. Object Number: 104909  Size: SH
  7. Disconnect the starter motor wiring.

  8. Object Number: 43460  Size: SH
  9. Remove the starter motor mounting bolts.
  10. Remove the starter motor.

Installation Procedure

Notice: Before installing the starter motor to the engine, secure the electrical terminals by tightening the nuts next to the cap on the solenoid battery terminal and on the SD-255 S terminal. If these terminals are not tight in the solenoid cap, the cap may be damaged during installation of the electrical connections and cause the starter to fail later.


    Object Number: 43460  Size: SH
  1. Install the starter motor.
  2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  3. Install the starter motor mounting bolts.
  4. Tighten
    Tighten the bolts to 43 N·m (32 lb ft).

  5. Install the flywheel inspection cover.
  6. Install the cover bolts.
  7. Tighten
    Tighten the bolts to 7 N·m (22 lb in).


    Object Number: 104909  Size: SH
  8. Connect the starter motor BAT terminal wire.
  9. Tighten
    Tighten the BAT terminal nut to 16 N·m (12 lb ft).

  10. Connect the starter motor S terminal wire.
  11. Tighten
    Tighten the S terminal nut to 2.5 N·m (22 lb in).

  12. Lower the vehicle.
  13. Connect the negative battery cable.
  14. Tighten
    Tighten the cable bolt to 15 N·m (11 lb ft).