Drive Plate
| ITEM | DESCRIPTION |
|---|---|
| 1 | Drive plate |
| 2 | Reluctor ring |
| 3 | Crankshaft |
| 4 | Dowel pin - Drive plate |
| 5 | Bolt - Drive plate (quantity 8) |
The drive plate is used for automatic transmissions only.
The drive plate is located at the rear of the crankshaft. A dowel pin the crankshaft makes sure that the drive plate and reluctor ring are indexed correctly.
There are 8 sealant patched bolts secure the drive plate to the crankshaft. The bolts can only be used 1 time and must be replaced when removed. Before the bolts are used, the bolt holes and threads must be dry and free from oil.
The drive plate is a fabrication, which comprises a formed steel starter ring gear which is attached to the drive plate and reluctor ring. The 2 components are clinched together to form the drive plate and are not serviceable.
The drive plate has 3 functions:
- Transfer drive from the crankshaft to the transmission.
- Transfer drive from the starter motor to the crankshaft.
- Provide the Powertrain Control Module (PCM) with crankshaft speed and position through a reluctor ring and a Crankshaft Position (CKP) sensor.
The reluctor ring has 58 teeth with 2 teeth missing to provide a gap. The CKP sensor is located in the lower timing chain cover and measures rotational speed and position as the reluctor ring rotates.
The reluctor ring has a service tool slot used during engine service procedures. The drive plate incorporates a steel starter ring gear which enables the starter motor to start the engine.
The drive plate has 4 holes for the attachment of the automatic transmission torque converter to transfer drive from the crankshaft to the automatic transmission.