Problem Symptoms Table
Front Differential (for 4WD)
PROBLEM SYMPTOMS TABLE - FRONT DIFFERENTIAL (FOR 4WD)
| Symptom | Suspected area | See |
|---|---|---|
| Noise in front differential | Oil level (Low or wrong grade) | DIFFERENTIAL OIL |
| Ring gear or drive pinion (Worn or chipped) | DISASSEMBLY | |
| Backlash adjustment (Incorrect) | INSPECTION | |
| Preload adjustment (Incorrect) | INSPECTION | |
| Tooth contact between ring gear and drive pinion (Incorrect) | INSPECTION | |
| Bearing (Worn) | DISASSEMBLY | |
| Oil leak from front differential | Oil level (Too high or wrong grade) | DIFFERENTIAL OIL |
| Oil seal (Worn or damaged) | DISASSEMBLY | |
| Seal packing (Damaged) | DISASSEMBLY |
Rear Differential (for 4GR-FSE)
PROBLEM SYMPTOMS TABLE - REAR DIFFERENTIAL (FOR 4GR-FSE)
| Symptom | Suspected area | See |
|---|---|---|
| Noise in rear differential | Oil level (Low or wrong grade) | DIFFERENTIAL OIL |
| Ring gear or drive pinion (Worn or chipped) | DISASSEMBLY | |
| Backlash adjustment (Incorrect) | INSPECTION | |
| Preload adjustment (Incorrect) | INSPECTION | |
| Tooth contact between ring gear and drive pinion (Incorrect) | INSPECTION | |
| Bearing (Worn) | DISASSEMBLY | |
| Oil leak from rear differential | Oil level (Too high or wrong grade) | DIFFERENTIAL OIL |
| Side gear shaft oil seal (Worn or damaged) | REPLACEMENT | |
| Seal packing (Damaged) | DISASSEMBLY |
Rear Differential (for 2GR-FSE)
PROBLEM SYMPTOMS TABLE - REAR DIFFERENTIAL (FOR 2GR-FSE)
| Symptom | Suspected area | See |
|---|---|---|
| Noise in rear differential | Oil level (Low or wrong grade) | DIFFERENTIAL OIL |
| Ring gear or drive pinion (Worn or chipped) | DISASSEMBLY | |
| Backlash adjustment (Incorrect) | INSPECTION | |
| Preload adjustment (Incorrect) | INSPECTION | |
| Tooth contact between ring gear and drive pinion (Incorrect) | INSPECTION | |
| Bearing (Worn) | DISASSEMBLY | |
| Oil leak from rear differential | Oil level (Too high or wrong grade) | DIFFERENTIAL OIL |
| Side gear shaft oil seal (Worn or damaged) | REPLACEMENT | |
| Seal packing (Damaged) | DISASSEMBLY |