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Home >> GMC >> 2004 >> Yukon Denali >> Repair and Diagnosis >> External Pages >> Different car >> Section 417 (Automatic Transmission - 4L80-E/4L85-E (Troubleshooting)) >> Troubleshooting >> Vibration

Section 417 (Automatic Transmission - 4L80-E/4L85-E (Troubleshooting)): Troubleshooting: Vibration

WARNING: This page is about a different car, the 2004 GMC Yukon XL, 2004 Chevrolet Suburban, and 2004 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Vibration

Checks Cause
Torque Converter (1)
  • Out of balance
  • Internal failure
  • Not sealed in crankshaft pilot
Transmission/Engine Misaligned or missing dowels
Case Extension (19) Output shaft support bushing is worn.
Turbine Shaft (502) Worn surface of the stator shaft bushing
Mainshaft (662) Worn bushing
Output Shaft (671) Worn bushing
Bearing (668) Worn