C 1500 Truck 2WD V8-5.3L VIN T (1999)
Starter Motor: Description and Operation
Two different starter motors are used on these engines.
The PG-260 achieves gear reduction at a ratio of 5:1 through planetary gears. It's relatively small size and light weight and offers improved cranking
performance and reduced current requirements for the gasoline engines.
Solenoid windings are energized when the ignition switch or engine control switch is in the start position. The resulting plunger and shift lever movement
causes the pinion to engage the engine flywheel ring gear, the solenoid main contacts to close, and cranking takes place. When the engine starts, the
pinion over running clutch protects the armature from excessive speed until the ignition switch or engine control switch is released, at that time the
plunger return spring causes the pinion to disengage. To prevent excessive overrunning, release the ignition switch or engine control switch from the
crank position as soon as the engine starts.
