Under-inflation is the most common cause of tire failures and
may result in severe tire cracking, tread separation orblowout,
with unexpected loss of vehicle control and increased risk of injury.
Under-inflation increases sidewall flexing and rolling resistance,
resulting in heat buildup and internal damage to the tire. It also may
result in unnecessary tire stress, irregular wear, loss of vehicle control
and accidents. A tire can lose up to half of its air pressure and not
appear to be flat!
Always inflate your tires to the Ford recommended inflation pressure
even if it is less than the maximum inflation pressure information found
on the tire. The Ford recommended tire inflation pressure is found on
the Safety Compliance Certification Label or Tire Label which is located
on the B-Pillar or the edge of the driver’s door. Failure to follow the tire
pressure recommendations can cause uneven treadwear patterns and
adversely affect the way your vehicle handles.
Maximum Permissible Inflation Pressureis the tire manufacturer’s
maximum permissible pressure and/or the pressure at which the
maximum load can be carried by the tire. This pressure is normally
higher than the manufacturer’s recommended cold inflation pressure
which can be found on the Safety Compliance Certification Label or Tire
Label which is located on the B-Pillar or the edge of the driver’s door.
The cold inflation pressure should never be set lower than the
recommended pressure on the Safety Compliance Certification Label or
Tire Label.
When weather temperature changes occur, tire inflation pressures also
change. A 10° F (6° C) temperature drop can cause a corresponding
drop of 1 psi (7 kPa) in inflation pressure. Check your tire pressures
frequently and adjust them to the proper pressure which can be found
on the Safety Compliance Certification Label or Tire Label.
To check the pressure in your tire(s):
1. Make sure the tires are cool, meaning they are not hot from driving
even a mile.
If you are checking tire pressure when the tire is hot, (i.e. driven more
than 1 mile [1.6 km]), never “bleed” or reduce air pressure. The tires are
hot from driving and it is normal for pressures to increase above
recommended cold pressures. A hot tire at or below recommended cold
inflation pressure could be significantly under-inflated.
2008 Econoline(eco)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
117
Information on “P” type tires
P215/65R15 95H is an example of a
tire size, load index and speed
rating. The definitions of these
items are listed below. (Note that
the tire size, load index and speed
rating for your vehicle may be
different from this example.)
1.P:Indicates a tire, designated by
the Tire and Rim Association
(T&RA), that may be used for
service on cars, SUVs, minivans and
light trucks.
Note:If your tire size does not
begin with a letter this may mean it
is designated by either ETRTO
(European Tire and Rim Technical Organization) or JATMA (Japan Tire
Manufacturing Association).
2.215:Indicates the nominal width of the tire in millimeters from
sidewall edge to sidewall edge. In general, the larger the number, the
wider the tire.
3.65:Indicates the aspect ratio which gives the tire’s ratio of height to
width.
4.R:Indicates a “radial” type tire.
5.15:Indicates the wheel or rim diameter in inches. If you change your
wheel size, you will have to purchase new tires to match the new wheel
diameter.
6.95:Indicates the tire’s load index. It is an index that relates to how
much weight a tire can carry. You may find this information in your
Owner’s Guide.If not, contact a local tire dealer.
Note:You may not find this information on all tires because it is not
required by federal law.
7.H:Indicates the tire’s speed rating. The speed rating denotes the
speed at which a tire is designed to be driven for extended periods of
time under a standard condition of load and inflation pressure. The tires
on your vehicle may operate at different conditions for load and inflation
pressure. These speed ratings may need to be adjusted for the difference
in conditions. The ratings range from 81 mph (130 km/h) to 186 mph
(299 km/h). These ratings are listed in the following chart.
2008 Econoline(eco)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
127
Information on “T” type tires
“T” type tires have some additional
information beyond those of “P”
type tires; these differences are
described below:
T145/80D16 is an example of a tire
size.
Note:The temporary tire size for
your vehicle may be different from
this example.
1.T:Indicates a type of tire,
designated by the Tire and Rim
Association (T&RA), that is
intended for temporary service on
cars, SUVs, minivans and light
trucks.
2.145:Indicates the nominal width
of the tire in millimeters from
sidewall edge to sidewall edge. In general, the larger the number, the
wider the tire.
3.80:Indicates the aspect ratio which gives the tire’s ratio of height to
width. Numbers of 70 or lower indicate a short sidewall.
4.D:Indicates a “diagonal” type tire.
R:Indicates a “radial” type tire.
5.16:Indicates the wheel or rim diameter in inches. If you change your
wheel size, you will have to purchase new tires to match the new wheel
diameter.
Location of the tire label
You will find a Tire Label containing tire inflation pressure by tire size
and other important information located on the B-Pillar or the edge of
the driver’s door. Refer to the payload description and graphic in the
Vehicle loading — with and without a trailersection.
2008 Econoline(eco)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
131
GCWR (Gross Combined Weight Rating)/Trailer Weights
EngineRear
axle
ratioMaximum
GCWR - lb.
(kg)Maximum
Loaded
Trailer Weight
- lb. (kg)Maximum
frontal area of
trailer - ft
2
(m2)
For high altitude operation reduce GCWR by 2% per 1,000 ft. (300
meters) elevation.
To determine the maximum trailer weight designed for your particular
vehicle as equipped, follow the sectionVehicle loadingearlier in this
chapter.
Your vehicle’s load capacity is designated by weight, not by volume, so
you cannot necessarily use all available space when loading a vehicle.
Distribute the load so that only 10–15% of the total is on the tongue. Tie
down the load so that it does not shift and change the weight on the
hitch.
Towing a trailer places an additional load on your vehicle’s engine,
transmission, axle, brakes, tires and suspension. Inspect these
components carefully after any towing operation.
Do not exceed the GVWR or the GAWR specified on the
certification label.
Towing trailers beyond the maximum recommended gross trailer
weight exceeds the limit of the vehicle and could result in
engine damage, transmission damage, structural damage, loss of vehicle
control, vehicle rollover and personal injury.
Preparing to tow
Use the proper equipment for towing a trailer and make sure it is
properly attached to your vehicle. See your authorized dealer or a
reliable trailer dealer if you require assistance.
Hitches
Do not use or install hitches that clamp onto the bumper or to the axle.
Underbody hitches are acceptable if installed properly.
Safety chains
Always connect the trailer’s safety chains to the frame or hook retainers
of the vehicle hitch. To connect the trailer’s safety chains, cross the
chains under the trailer tongue and allow slack for turning corners.
2008 Econoline(eco)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
157
Launching or retrieving a boat
Disconnect the wiring to the trailer before backing the trailer
into the water. Reconnect the wiring to the trailer after the
trailer is removed from the water.
When backing down a ramp during boat launching or retrieval:
•do not allow the static water level to rise above the bottom edge of
the rear bumper.
•do not allow waves to break higher than 6 inches (15 cm) above the
bottom edge of the rear bumper.
Exceeding these limits may allow water to enter vehicle components:
•causing internal damage to the components.
•affecting driveability, emissions and reliability.
Replace the rear axle lubricant any time the axle has been submerged in
water. Rear axle lubricant quantities are not to be checked or changed
unless a leak is suspected or repair required.
RECREATIONAL TOWING (ALL WHEELS ON THE GROUND)
An example of recreational towing would be towing your vehicle on a
trip behind a motorhome. Follow these guidelines if you have the need
for recreational towing of your vehicle with all four wheels on the
ground. These guidelines are designed to ensure that your transmission
is not damaged.
2WD vehicles (with automatic transmissions):
•Place the transmission in N (Neutral)
•Maximum speed is 35 mph (56 km/h)
•Maximum distance is 50 miles (80 km)
If a distance of 50 miles (80 km) or a speed of 35 mph (56 km/h) must
be exceeded, the drive shaft will have to be removed.
Ford recommends the driveshaft be removed/installed only by a qualified
technician at an authorized dealer. See your authorized dealer for
driveshaft removal/installation.
Improper removal/installation of the driveshaft can cause
transmission fluid loss, damage to the driveshaft and internal
transmission components.
2008 Econoline(eco)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
160
If the AdvanceTracwith RSC system is activated excessively in a short
period of time, the brake portion of the system will shut down to allow
the brakes to cool down. A limited AdvanceTracwith RSC function
using only engine power reduction will still help control the wheels from
over-spinning. When the brakes have cooled down, the system will again
function normally. Anti-lock braking is not affected by this condition and
will function normally during the cool-down period.
The AdvanceTracwith RSC system enhances your vehicle’s stability
during maneuvers that require all available tire traction, like in
wet/snowy/icy road conditions and/or when performing emergency
maneuvers. In an emergency lane-change, the driver will experience
better overall vehicle traction, and have better control of the vehicle.
The AdvanceTracwith RSC system helps the driver maintain steering
control if the vehicle begins to slide excessively left or right or spin out.
AdvanceTracwith RSC will attempt to correct the sliding motion by
applying brake force at individual tires and, if necessary, by reducing
engine power.
Aggressive driving in any road conditions can cause you to lose
control of your vehicle increasing the risk of severe personal
injury or death. The occurrence of a AdvanceTracwith RSC event is
an indication that at least some of the tires have exceeded their ability
to grip the road; this may lead to an increased risk of loss of vehicle
control, vehicle rollover, personal injury and death. Operating your
vehicle with AdvanceTracwith RSC system disabled may severely
reduce your ability to control your vehicle. If you experience a severe
road event or any loss of vehicle control, SLOW DOWN.
Driving conditions which may activate AdvanceTracwith RSC system
include:
•Taking a turn too fast.
•Maneuvering quickly to avoid an accident, pedestrian or obstacle.
•Hitting a patch of ice.
•Changing lanes on a snow-rutted road.
•Entering a snow-free road from a snow-covered side street, or vice
versa.
•Entering a paved road from a gravel road, or vice versa.
•Hitting a curb while turning.
•Driving on slick surfaces.
2008 Econoline(eco)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
169
•Cornering while towing a heavily loaded trailer (refer toTrailer
towingin theTires, Wheels and Loadingchapter.)
The RSC system works in conjunction with the AdvanceTracsystem to
further enhance the vehicle’s overall stability during aggressive
maneuvers. The system helps maintain roll stability of the vehicle during
aggressive maneuvers by applying brake force to one or more wheels.
Driving conditions that may activate Roll Stability Control include:
•Emergency lane-change
•Taking a turn too fast
•Quick maneuvering to avoid an accident, pedestrian or obstacle
The AdvanceTracwith RSC system automatically turns on when the
engine is started. However, the system does not function when the
vehicle is traveling in R (Reverse). In R (Reverse), ABS and the traction
enhancement feature will continue to function.
The AdvanceTracwith RSC button
allows the driver to control the
availability of the AdvanceTrac
with RSC system. AdvanceTrac
with RSC system status is indicated
by a warning indicator light with a
“sliding car” icon in the instrument
cluster that will flash when the
system is active and an indicator light in the control button that will
illuminate when the system is turned off.
The AdvanceTracwith RSC system
warning indicator light may flash to
indicate the system is not fully
initialized. If this happens, slow
down. If the light continues flashing,
have the AdvanceTracwith RSC
system serviced by an authorized dealer.
If a failure is detected in the AdvanceTracwith RSC system, the
warning indicator light in the instrument cluster will stay on and the
instrument cluster will chime repeatedly. If the warning indicator light in
the instrument cluster remains on and the chime is active while the
engine is running, have the system serviced by an authorized dealer
immediately.
Pressing the control will disable the AdvanceTracwith RSC system and
the traction enhancement feature at and below 20 mph (32 km/h). If the
2008 Econoline(eco)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
170
vehicle is stuck in snow or mud or when driving in deep sand, switching
off the AdvanceTracwith RSC system may be beneficial so the wheels
are allowed to spin. If your vehicle seems to lose engine power while
driving in deep sand or very deep snow and the vehicle speed is 20 mph
(32 km/h) or below, switching off the AdvanceTracwith RSC stability
enhancement feature will restore full engine power and will enhance
momentum through the obstacle. Remember to switch the AdvanceTrac
with RSC system back on once the vehicle is no longer stuck.
Note:The AdvanceTracwith RSC system will automatically restore to
full functionality every time the vehicle speed exceeds 20 mph (32 km/h)
or the ignition is turned off and back on. However, the AdvanceTrac
with RSC button remains illuminated even above 20 mph (32 km/h) until
it is pressed.
Some drivers may notice a slight movement of the brake pedal when the
AdvanceTracwith RSC performs a system self-check. During
AdvanceTracwith RSC operation you may experience the following:
•A rumble or grinding noise
•A slight deceleration of the vehicle
•Steering feedback
•The AdvanceTracwith RSC indicator light will flash
•If your foot is on the brake pedal, you will feel a vibration in the
pedal.
All these conditions are normal during AdvanceTracwith RSC
operation.
Do not alter or modify your vehicle’s suspension, steering or
tires; the resulting changes to the vehicle’s handling can
adversely affect the AdvanceTracwith RSC system. Also, do not
install a stereo loudspeaker. The speaker vibrations can adversely
affect the AdvanceTracwith RSC sensors.
STEERING
To help prevent damage to the power steering system:
•Never hold the steering wheel at its furthest turning points (until it
stops) for more than a few seconds when the engine is running.
•Do not operate the vehicle with a low power steering pump fluid level
(If the fluid level is below the FULL COLD range on the dipstick).
•Some noise is normal during operation. If the noise is excessive, check
for low power steering pump fluid level before seeking service by your
authorized dealer.
2008 Econoline(eco)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
171