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Home >> Chevrolet >> 2005 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 4L80-E/4L85-E - Service, Diagnosis & Trouble Shooting >> Troubleshooting >> Noise

Automatic Transmission - 4L80-E/4L85-E - Service, Diagnosis & Trouble Shooting: Troubleshooting: Noise

Noise

Checks Cause
Torque Converter (1)
  • Loose lug bolts
  • Out of balance
  • Internal failure
Transmission/Engine Misaligned
Case Extension (19) Output shaft support bushing is worn.
Reaction and Output Gear Sets Flats on gear teeth or teeth improperly machined
Oil Pan Dented