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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Four Wheel Drive (4WD) Systems >> Diagnostic Routine(S) >> Diagnostic Routine E >> Diagnostic Overview >> Normal Operation and Fault Conditions
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Normal Operation and Fault Conditions

In order for the AWD system to function correctly, tires and wheels must be the same size, be in good condition and the front and rear axle ratios must match. When the AWD system is functioning properly, there should be no perceived speed difference between the front and rear axles when launching or driving the vehicle on any uniform surface. Traction should be similar to a part time 4WD  system in 4H (4X4 HIGH), but have no binding in turns.