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Home >> Chevrolet >> 2007 >> Chevy Express G2500, Van Cargo, 6.6 6 >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4L80-E/4L85-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Diagnostic Information And Procedures >> Noise

Diagnostic Information And Procedures: 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