Starter Motor
| ITEM | DESCRIPTION |
|---|---|
| A | Tandem Solenoid Starter (TSS) |
| B | Starter motor |
| 1 | Solenoid |
| 2 | Solenoid electrical connection |
| 3 | Motor power connecting stud |
| 4 | Breather |
| 5 | Motor |
| 6 | Pinion gear |
The starter motor and the Tandem Solenoid Starter (TSS) are also attached to the cylinder block, at the joint between the transmission and the engine. The pinion gear of the starter motor protrudes through an aperture in the transmission housing, adjacent to the ring gear on the drive plate.
The starter motor and the TSS have the motor located directly behind the pinion gear. The motor is geared directly to the pinion gear and is a pre-engaged type comprising a series wound motor and an over-running clutch.
In the TSS motor the pinion gear solenoid and a motor solenoid, installed in tandem, allow independent control of pinion gear engagement with the ring gear and energizing of the motor. This allows the pinion gear to engage the ring gear while the engine is still rotating.
The starter solenoid is connected to a power feed from the starter relay in the Engine Junction Box 2 (EJB 2), which is controlled by the Powertrain Control Module (PCM). When the starter solenoid is energized it engages the pinion gear with the ring gear and simultaneously closes a switch to supply the motor with power from the starter fuse on the battery positive terminal.