Ford 1998 Expedition Automobile User Manual


 
Speed sensitive steering
The steering in your vehicle is speed sensitive. At high speeds, steering
assist will decrease to improve steering feel. At lower speeds,
maneuverability will be increased.
If the amount of effort required to steer your vehicle changes at a
constant vehicle speed, have the power steering system checked by your
dealer or a qualified service technician.
AIR SUSPENSION SYSTEM (IF EQUIPPED)
The air suspension system is designed to improve ride, handling and
general vehicle performance for static, on and off-road driving conditions.
The load leveling feature of the air suspension automatically keeps the
vehicle at a constant level if a load is added or removed from the
vehicle.
The height adjustment feature automatically controls the vehicle
height over a range of approximately 5 cm (2 inches) based on vehicle
speed, ignition position and selection of two or four-wheel drive
modes.
The air suspension automatically puts the vehicle at its lowest height
when ignition if OFF to provide easy entry and exit. When ever a door
is opened (including the liftgate) the system memorizes and maintains
the height of the vehicle until all doors are closed or until vehicle
exceeds 16km/h (10mph).
The air suspension system raises the vehicle to its normal ride
position when the ignition is turned on, all doors are closed and the
transmission is shifted into gear.
In 4WD Low the air suspension system will not move to it’s lowest
height. In 4WD Low, the air suspension system raises the vehicle
above the normal ride height at speeds below 40 km/h (25 mph) to
improve ground clearance. In 4WD Low, do not exceed 56 km/h
(35 mph).
When the vehicle is in motion, the air suspension system will adjust
the vehicle’s height according to ground clearance and speed to
maximize ride comfort.
It is normal to occasionally hear a buzz or clicking from the vehicle’s
air suspension system when the ignition is turned off. The system
stays energized for 40 minutes after the ignition is turned off to
compensate for any load changes made after the vehicle is parked.
Driving
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