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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 >> Loss of Power

Loss of Power

Loss of Power

Checks Cause
Transmission
  • Low oil
  • Not starting in first gear
TCC System TCC is stuck On, or TCC is dragging.
Torque Converter (1)
  • Debris in the converter
  • Stator loose
Stator Shaft (235) The shaft is broken.
Turbine Shaft (502) The bushing is worn.
Mainshaft (662) The bushing is worn.
Output Shaft (671) The bushing is worn.
Bearing (668) The bearing is worn.