Home >> Ford >> 2011 >> Flex FWD V6-3.5L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> 6F50 / 6F55 >> Diagnostic Routines >> Shift Concerns 210/310 - 249/349 >> 249/349, Harsh 2-1 Shift (Automatic)