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Porsche , 911 , 997.1 Common Issues

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  1. Water pump failure (10-15% failure rate)
  2. Engine oil leaks at rear main seal (5-10%)
  3. Rear main bearing failure (5-8%)
  4. Oil cooler lines rupture (3-6%)
  5. Front brake rotor warping (2-5%)
  6. Turbocharger failures on 997.2 T models (1-4% depending on usage)
  7. Transmission solenoid pack failure (0.5-2%)
  8. Rear axle bearing wear (0.5-2%)
  9. Power steering pump failure (0.5-2%)
  10. Alternator failure (0.5-1.5%)
  11. Coil over shock absorber failures (0.5-1.5% depending on driving conditions)
  12. Ignition coil failure (0.2-1%)
  13. Fuel injector coking (0.2-1%)
  14. Rear main seal oil leak due to bearing wear (less than 1%)
  15. Timing chain tensioner failure (less than 1%)
  16. Rear wheel bearing failure (less than 1%)
  17. Shift linkage wear (less than 1%)
  18. Speedometer cable failure (less than 0.5%)
  19. Oil pressure sensor malfunction (less than 0.5%)
  20. Water pump impeller failure (less than 0.2%)
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