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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Automatic Transmission - 6T40 - DTC P0973 To DTC P2764 And Troubleshooting Procedures) >> Diagnostic Information and Procedures >> Automatic Transmission Fluid Leaks

Automatic Transmission Fluid Leaks

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Checks Causes
Torque Converter (28) Inspect for damage
Case Assembly (50)
  • Inspect for cracked or broken Case (50)
  • Inspect for porosity or damage on the sealing surfaces
  • Inspect for loose Oil Cooler Line Bolts or damaged Oil Cooler Line Seals
  • Inspect for damaged Manual Shift Shaft Seal (604)
  • Inspect for damaged or worn Axle Seal (65) or Axle Seal Slinger on the axle shafts
  • Inspect for plugged Vent Cap (52)
  • Inspect for loose Pressure Test Plug (51), Drain Plug (64) and Fluid Level Plug (63)
  • Inspect for damaged Park Pawl Actuator Guide Seal (605)
  • Inspect for damaged or worn Input Speed Sensor Seals (19)
Torque Converter Housing Assembly (208)
  • Inspect for damaged Torque Converter Housing Assembly (208)
  • Inspect for porosity or damage on the sealing surfaces
  • Inspect for damaged Torque Converter Housing Seal (23)
  • Inspect for damaged or worn Torque Converter Fluid Seal (301)
  • Inspect for loose Torque Converter and Differential Housing Bolts (26)
  • Inspect for damaged or worn Axle Seal (209) or Axle Seal Slingers on the axle shafts
  • Inspect for loose, missing or damaged Fluid Fill Tube Plug Assembly (27)
  • Inspect for damaged Torque Converter and Differential Housing Seal (202)
Valve Body Cover Assembly (2)
  • Inspect for damaged or warped Valve Body Cover Assembly (2)
  • Inspect for damaged or improperly installed Valve Body Cover Gasket (3)
  • Inspect for loose Valve Body Cover Bolts (1)
  • Inspect for damaged or improperly installed Wire Connector Hole Seal (5)