Converter Shudder (35-41 MPH) and/or Harsh Engagement

Symptom:
TORQUE CONVERTER SHUDDER (35-41 MPH) AND/OR HARSH EMCC ENGAGEMENT

POSSIBLE CAUSES
TCM SOFTWARE NOT UP TO DATE - CHECK FOR LATEST TSB
FAILED (BURNT) OIL
WORN PUMP BUSHING (SLIPS IN FEMCC, ALSO SETS DTC P0740)
TORQUE CONVERTER DISC FAILURE (SLIPS IN FEMCC, ALSO SETS DTC P0740