2003 Ford F250 Owner Guide 5th Printing - Page 129

Driving FOUR-WHEEL DRIVE (4WD) OPERATION (IF EQUIPPED) For important information regarding safe operation of this type of vehicle, see Preparing to drive your vehicle in this chapter. When four-wheel drive (4WD) is engaged, power is supplied to all four wheels through a transfer case. 4WD can be selected when additional driving power is desired. 4WD operation is not recommended on dry pavement. Doing so could result in difficult disengagement of the transfer case, increased tire wear and decreased fuel economy. Manual 4x4 system (if equipped) The 4WD system is engaged or disengaged by rotating the control for both front wheel hub locks from the FREE or LOCK position, then manually engaging or disengaging the transfer case with the floor-mounted shifter. For increased fuel economy in 2WD, rotate both hub locks to the FREE position. • For proper operation, make sure that the arrow and the indicator dot on the hub are aligned, and that both hub locks are set to the same position (both set to LOCK or both set to FREE). Electronic shift on the fly (ESOF) 4x4 system (if equipped) If equipped with the Electronic Shift 4WD System, and 4WD Low is selected while the vehicle is moving, the 4WD system will not engage. This is normal and should be no reason for concern. Before 4WD Low can be engaged, the vehicle must be brought to a complete stop, the brake pedal depressed and the transmission placed in N (Neutral ) (on automatic transmissions or the clutch pedal depressed on manual transmissions). The 4WD system: • provides 4x4 High engagement and disengagement while the vehicle is moving. 129 2003 F250/350/450/550 (f23) Owners Guide (post-2002-fmt) USA English (fus)