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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1880 (Automatic Transaxle - 4T45-E - Service, Diagnosis & Troubleshooting) >> Loss of Drive

Loss of Drive

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Loss of Drive

Checks Causes
Torque Converter (55)
  • Broken lugs or a failed lug weld
  • Sheared lug bolts
  • Worn turbine shaft splines
  • An internal failure
  • A cracked cover at the weld
Wheel Drive Shafts
  • Damaged
  • Worn or loose splines
Turbine Shaft (39) Stripped splines
Oil Pump (10) Seized or broken pump gears
Oil Pump Shaft (19) Broken or stripped splines
Filter and Filter Seal (84, 85) Plugged or missing
Fluid Level Low
Shift Linkage Disconnected
Drive/Driven Sprockets and Drive Chain (36, 37, 91) Broken
Planetary Gears Failure or lack of lube
Final drive Gear failure or lack of lube
Channel Plate and Gasket (28) Damaged, leaking, or misaligned
Valve Body, Gaskets, and Spacer Plate Damaged, leaking, or misaligned
  • Forward Sprag Clutch
  • Forward Clutch
  • Low Roller Clutch
Damaged or not holding
Refer to No First Gear, Slips in First Gear .
Hydraulic System
  • Tie up
  • Fluid circuit leaks