Lexus IS250 IS220d GSE20 ALE20 - CLUTCH
CLUTCH SYSTEM (for 2AD-FHV) - PROBLEM SYMPTOMS TABLE
Use the table below to help find the cause of the problem. The numbers indicate the ranked order of probability of each of the possible causes. Check each part in order. Replace parts as necessary.
| Symptom | Suspected area | See page |
| Clutch grabs/chatters | 1. Engine mounting (Loose) | - |
| 2. Clutch disc assembly (Runout is excessive) | ||
| 3. Clutch disc assembly (Oily) | ||
| 4. Clutch disc assembly (Worn out) | ||
| 5. Clutch disc torsion rubber (Damaged) | ||
| 6. Clutch disc assembly (Glazed) | ||
| 7. Diaphragm spring (Out of tip alignment) | ||
| Clutch pedal spongy | 1. Clutch line (Air in line) | |
| 2. Master cylinder (Damaged) | ||
| 3. Release cylinder rubber (Damaged) | ||
| Clutch noisy | 1. Clutch release bearing assembly (Worn, dirty, or damaged) | |
| 2. Clutch disc torsion rubber (Damaged) | ||
| Clutch slips | 1. Clutch pedal (Free play out of adjustment) | |
| 2. Clutch disc assembly (Oily) | ||
| 3. Clutch disc assembly (Worn out) | ||
| 4. Diaphragm spring (Damaged) | ||
| 5. Pressure plate (Distortion) | ||
| 6. Flywheel sub-assembly (Distortion) | ||
| Clutch does not disengage | 1. Clutch pedal (Free play out of adjustment) | |
| 2. Clutch disc assembly (Air in line) | ||
| 3. Master cylinder (Damaged) | ||
| 4. Release cylinder cup (Damaged) | ||
| 5. Clutch disc assembly (Out of true) | ||
| 6. Clutch disc assembly (Runout is excessive) | ||
| 7. Clutch disc assembly (Lining broken) | ||
| 8. Clutch disc assembly (Dirty or burned) | ||
| 9. Clutch disc assembly (Oily) | ||
| 10. Clutch disc assembly (Lack of spline grease) |
LEXUS IS250, IS220d / GSE20 ALE20