CONTROL TRAC FOUR-WHEEL DRIVE (4X4) OPERATION
(IF EQUIPPED)
For important information regarding safe operation of this type
of vehicle, see Preparing to drive your vehicle in this chapter.
If equipped with the Control Trac 4x4 System, and 4L (4x4 LOW)
is selected while the vehicle is moving, the system will not
engage. This is normal and should be no reason for concern.
Before 4L (4x4 LOW) can be engaged, the vehicle must be
brought to a complete stop, the brake pedal depressed and the
transmission placed in N (Neutral).
The vehicle should not be operated in 4H (4x4 HIGH) or 4L (4x4 LOW)
on dry pavement. Doing so could result in difficult disengagement of the
transfer case, increased tire wear, decreased fuel economy and may
damage driveline components.
Your 4x4 features the heavy-duty Control Trac system which includes a
computer-operated transfer case. This unique system is interactive with
the road, continually monitoring and adjusting torque delivery to the
front and rear wheels to optimize vehicle control.
System indicator lights
The Control Trac system indicator lights illuminate only under the
following conditions. If these lights illuminate when driving in 2H or
A4WD, contact your Ford dealer as soon as possible.
• 4X4 HIGH - momentarily
illuminates when the vehicle is
started. Illuminates when 4H is
selected.
• 4X4 LOW – momentarily
illuminates when the vehicle is
started. Illuminates when 4L is
selected. 4x4
HIGH
4x4
LOW
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus)Driving
240
2. Slide the wheel partially under
the vehicle and install the retainer
through the wheel center. After
doing so, pull on the cable to align
the components at the end of the
cable.
3. Assemble the jack handle and
winch extension (as shown in
illustration), then insert the winch
extension through the access hole
behind the 3rd row seat and engage
the winch.
4. Turn the jack handle clockwise
until the tire is raised to its stowed
position underneath the vehicle. The
wrench will become harder to turn and the spare tire winch will ratchet
or slip when the tire is raised to maximum tightness. A clicking sound
will be heard from the winch indicating that the tire is properly stowed.
5. Disassemble the tools and snap them back into the tool tray. Close the
access hole with the rubber plug. Reinstall the tray into the vehicle and
secure it with the wing nut (turn clockwise until tight).
Wheel lug nut torque specifications
Retighten the lug nuts to the specified torque at 800 km (500 miles)
after any wheel disturbance (tire rotation, changing a flat tire, wheel
removal, etc.).
Bolt size Wheel lug nut torque*
Nm Lb-ft1
2
x 20 113-153 84-114
* Torque specifications are for nut and bolt threads free of dirt and
rust. Use only Ford recommended replacement fasteners.
When a wheel is installed, always remove any corrosion, dirt or
foreign materials present on the mounting surfaces of the wheel
or the surface of the front disc brake hub and rotor that contacts the
wheel. Installing wheels without correct metal-to-metal contact at the
wheel mounting surfaces can cause the wheel nuts to loosen and the
wheel to come off while the vehicle is in motion, resulting in loss of
control.
2004 Navigator (nav)
Owners Guide (post-2002-fmt)
USA English (fus) Roadside Emergencies
281
