Lexus IS250 IS220d GSE20 ALE20 - DIFFERENTIAL
DIFFERENTIAL SYSTEM - PROBLEM SYMPTOMS TABLE
| Symptom | Suspected area | See page |
| Noise in rear differential | Oil level (Low or wrong grade) | |
| Ring gear or drive pinion (Worn or chipped) | ||
| Backlash adjustment (Incorrect) | ||
| Preload adjustment (Incorrect) | ||
| Tooth contact between ring gear and drive pinion (Incorrect) | ||
| Bearing (Worn) | ||
| Oil leak from rear differential | Oil level (Too high or wrong grade) | |
| Side gear shaft oil seal (Worn or damaged) | ||
| Seal packing (Damaged) |