Tech Tips
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
| Symptom | Suspected Area | See page |
|---|---|---|
| Oil leak from rear differential | Oil (level too high or wrong grade) | |
| Rear differential carrier oil seal (worn or damaged) | ||
| Companion flange (loose or damaged) | ||
| Oil leak from rear drive pinion shaft | Oil (level too high or wrong grade) | |
| Rear differential carrier oil seal (worn or damaged) | ||
| Companion flange (loose or damaged) | ||
| Differential lock does not operate | Rear differential lock actuator | |
| Differential carrier (Faulty) | - | |
| Wiring or ground (Faulty) | - |