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Home >> Ford >> 2000 >> Excursion 7.3 F, 4WD >> Repair and Diagnosis (Single Page) >> Drivelines & Axles >> Locking Hubs >> Four-Wheel Drive Systems (ESOF) - Excursion & F250-F550 Super Duty >> Trouble Shooting >> Symptom Diagnosis >> Vehicle Does Not Shift Between 4WD High To 4WD Low Properly

Vehicle Does Not Shift Between 4WD High To 4WD Low Properly

Possible cause: fuses, 4WD mode switch, neutral safety switch, brake pedal position switch, transfer case, TR sensor, ABS control module and/or GEM. Perform TEST B  under DIAGNOSTIC TESTS.