DIAGNOSIS AND TESTING
DIFFERENTIAL-ELSD
HYDRAULIC
| CONDITION |
POSSIBLE CAUSES |
CORRECTION |
| No Lock Up |
1. Pump Seals Leaking |
1. Replace Differential |
| 2. Clutch Worn |
2. Replace Differential |
|
| 3. Solenoid Valve |
3. Replace Solenoid |
|
| 4. Plugged Filter |
4. Clean Filter |
|
| 5. Final Drive Control Module |
5. Replace Control Module |
Raise vehicle and rotate tires in the opposite direction at the same time. This will make any oil left in the piston chamber apply pressure to the clutch and create some drag on the wheels. The wheels will not lock because the differential solenoid is not activated.
SOLENOID
With solenoid disconnected resistance across the solenoid should be 13.5 to 14.5 ohms at 25° Celsius (77° Fahrenheit). To replace the solenoid disconnect wire connector then squeeze the retention clip and pull solenoid up.