Problem Symptoms Table
WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
Use PROBLEM SYMPTOMS TABLE to find the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts.
PROBLEM SYMPTOMS TABLE
| Symptom | Suspected Area | Reference |
|---|---|---|
| Oil leak from front differential | 1. Oil level (too high or wrong grade) | OIL LEVEL (TOO HIGH OR WRONG GRADE) |
| 2. Front differential rear oil seal (worn or damaged) | FRONT DIFFERENTIAL REAR OIL SEAL (WORN OR DAMAGED) | |
| - | DIFFERENTIAL CARRIER ASSY FRONT (2UZ-FE (4WD)) | |
| 3. Companion flange (loose or damaged) | COMPANION FLANGE (LOOSE OR DAMAGED) | |
| - | DIFFERENTIAL CARRIER ASSY FRONT (2UZ-FE (4WD)) | |
| Oil leak from rear differential | 1. Oil level (too high or wrong grade) | OIL LEVEL (TOO HIGH OR WRONG GRADE) |
| 2. Rear differential front oil seal (worn or damaged) | REAR DIFFERENTIAL FRONT OIL SEAL (WORN OR DAMAGED) | |
| - | OVERHAUL | |
| 3. Companion flange (loose or damaged) | COMPANION FLANGE (LOOSE OR DAMAGED) | |
| - | OVERHAUL | |
| Oil leak from front drive pinion shaft | 1. Oil level (too high or wrong grade) | OIL LEVEL (TOO HIGH OR WRONG GRADE) |
| 2. Front differential rear oil seal (worn or damaged) | FRONT DIFFERENTIAL REAR OIL SEAL (WORN OR DAMAGED) | |
| - | DIFFERENTIAL CARRIER ASSY FRONT (2UZ-FE (4WD)) | |
| 3. Companion flange (loose or damaged) | COMPANION FLANGE (LOOSE OR DAMAGED) | |
| - | DIFFERENTIAL CARRIER ASSY FRONT (2UZ-FE (4WD)) | |
| Oil leak from rear drive pinion shaft | 1. Oil level (too high or wrong grade) | OIL LEVEL (TOO HIGH OR WRONG GRADE) |
| 2. Rear differential front oil seal (worn or damaged) | REAR DIFFERENTIAL FRONT OIL SEAL (WORN OR DAMAGED) | |
| - | OVERHAUL | |
| 3. Companion flange (loose or damaged) | COMPANION FLANGE (LOOSE OR DAMAGED) | |
| - | OVERHAUL |