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Home >> Chevrolet >> 2017 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 79 (Automatic Transmission - 6T45 (MH7) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> No Torque Converter Clutch Apply

No Torque Converter Clutch Apply

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
Checks Causes
Torque Converter Assembly (28)
  • Inspect for damaged Torque Converter Clutch Seal (inside converter assembly).
  • Diagnose Torque Converter Assembly for possible internal damage. Refer to Torque Converter Diagnosis .
Valve Body Assembly (433) Inspect for worn, damaged or sticking TCC Regulator Apply (425) and TCC Regulator Apply Shuttle (426) Valves. Refer to Control Solenoid Valve and Transmission Control Module Assembly Inspection .
Oil Pump Assembly (201) Inspect for worn or damaged Torque Converter Fluid Seal Assembly (301).
Torque Converter Housing Assembly (29) Inspect for leaking or damaged Torque Converter Fluid Seal Assembly (301), Torque Converter Fluid Seal Assembly (319) and A/Trans Fluid Pump Assembly (201).