- Inspect the module housing (412) for
the following conditions:
| • | Damaged sealing surfaces |
| • | Restrictions within the oil passages |
| • | A worn or scored valve bore |
| • | The valve (414)
must move freely within the bore. |
- Inspect the solenoid (416) for damaged wires or electrical
connector.
- Using an ohm meter, test the solenoid wiring. If the measurement
is infinity or greater than 14-30 ohms, replace the solenoid.
- Inspect for a plugged screen (418).
- Inspect for damaged threads on the oil filter fitting (411).
- Inspect the valve (414) for scoring.
- Inspect for a broken valve spring (413).
