Home >> Mercury >> 2010 >> Mariner 2WD L4-2.5L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> 6F35 >> Diagnostic Routines >> Shift Concerns 210/310 - 249/349 >> 220/320, No 1-2 Shift (Automatic)