1997 Ford Expedition Automatic Four Wheel Drive (A4WD) Features and Operation

download The A4WD system is an electronic shift 4×4 system that allows the operator to choose between three different 4×4 modes as well as 2-wheel drive. The operator can switch between 2WD, A4WD, and 4WD HIGH modes at speed. To engage or disengage LOW Range, the vehicle speed must be less than 5 kph, the [...]