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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1030 (Automatic Transmission - 4L80-E/4L85-E (Troubleshooting)) >> Troubleshooting >> Vibration

Section 1030 (Automatic Transmission - 4L80-E/4L85-E (Troubleshooting)): Troubleshooting: Vibration

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. 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