Lexus IS250 IS220d GSE20 ALE20 - CLUTCH
CLUTCH SYSTEM - PROBLEM SYMPTOMS TABLE
Use the table below to help you 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 (glazed) | ||
| 6. Diaphragm spring (tip is out of alignment) | - | |
| Clutch pedal is spongy | 1. Clutch line (air in line) | |
| 2. Master cylinder cup (damaged) | - | |
| 3. Release cylinder rubber (damaged) | ||
| Clutch is noisy | 1. Release bearing (worn, dirty, or damaged) | |
| Clutch slips | 1. Clutch pedal (free play is out of adjustment) | |
| 2. Clutch disc (oily) | ||
| 3. Clutch disc (worn out) | ||
| 4. Diaphragm spring (damaged) | - | |
| 5. Flywheel (distorted) | ||
| Clutch does not disengage | 1. Clutch pedal (free play is out of adjustment) | |
| 2. Clutch line (air in line) | ||
| 3. Master cylinder (damaged) | ||
| 4. Master cylinder cup (damaged) | - | |
| 5. Release cylinder cup (damaged) | ||
| 6. Clutch disc assembly (out of true) | ||
| 7. Clutch disc assembly (runout is excessive) | ||
| 8. Clutch disc assembly (lining is broken) | ||
| 9. Clutch disc assembly (dirty or burned) | ||
| 10. Clutch disc assembly (oily) | ||
| 11. Clutch disc assembly (lack of spline grease) |
LEXUS IS250, IS220d / GSE20 ALE20