Problem Symptoms Table
WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
Front differential
FRONT DIFFERENTIAL PROBLEM SYMPTOMS REFERENCE
| Symptom | Suspected Area | See Procedure |
|---|---|---|
| Noise in front differential | Oil (Level low or wrong grade) | DIFFERENTIAL OIL |
| Ring gear or drive pinion (Worn or chipped) | FRONT DIFFERENTIAL CARRIER ASSEMBLY | |
| Backlash adjustment (Defective) | FRONT DIFFERENTIAL CARRIER ASSEMBLY | |
| Preload adjustment (Defective) | FRONT DIFFERENTIAL CARRIER ASSEMBLY | |
| Tooth contact between ring gear and drive pinion (Defective) | FRONT DIFFERENTIAL CARRIER ASSEMBLY | |
| Bearing (Worn) | FRONT DIFFERENTIAL CARRIER ASSEMBLY | |
| Oil leak from front differential | Oil (Level too high or wrong grade) | DIFFERENTIAL OIL |
| Oil leak from front differential | FRONT DIFFERENTIAL CARRIER ASSEMBLY | |
| Seal packing (Damaged) | FRONT DIFFERENTIAL CARRIER ASSEMBLY |
Rear differential
REAR DIFFERENTIAL PROBLEM SYMPTOMS REFERENCE
| Symptom | Suspected Area | See Procedure |
|---|---|---|
| Noise in rear differential | Oil (Level low or wrong grade) | DIFFERENTIAL OIL |
| Ring gear or drive pinion (Worn or chipped) | DIFFERENTIAL CARRIER ASSEMBLY | |
| Backlash adjustment (Defective) | DIFFERENTIAL CARRIER ASSEMBLY | |
| Preload adjustment (Defective) | DIFFERENTIAL CARRIER ASSEMBLY | |
| Tooth contact between ring gear and drive pinion (Defective) | DIFFERENTIAL CARRIER ASSEMBLY | |
| Bearing (Worn) | DIFFERENTIAL CARRIER ASSEMBLY | |
| Oil leak from rear differential | Oil (Level too high or wrong grade) | DIFFERENTIAL OIL |
| Oil leak from rear differential | DIFFERENTIAL CARRIER ASSEMBLY | |
| Seal packing (Damaged) | DIFFERENTIAL CARRIER ASSEMBLY |