GM Service Manual Online
For 1990-2009 cars only

Notice: Never operate the starter motor for more than 30 seconds at a time. Allow it to cool for at least two minutes. Overheating, caused by too much cranking, will damage the starter motor.

This vehicle has two starter motor applications. The 3400 LA1 (VIN E) uses the PG260 F1 starter motor. The 3800 L36 (VIN K) uses the PG260 F2 starter motor.

These starter motors have pieces that are arranged around the armature. The solenoid windings are energized when the ignition switch is turned to START. The resulting plunger and shift lever movement causes the pinion to engage the flywheel ring gear and the solenoid main contact switch to close. When the engine starts, the pinion overrun protects the armature from excessive speed until the switch is opened. Once the solenoid windings are de-energized, the return spring causes the pinion to disengage.