tire size FORD F250 1997 Owners Manual

23 %
*
[IS11100(FM)03/96]
Speedometer
*
[IS11200(FM)03/96]
The speedometer tells you how many miles
(kilometers) per hour your vehicle is moving.
*
[IS11300(F )03/96]
Your vehicle contains a speedometer which
receives its input from the Anti-Lock brake
sensor. The speedometer is also used to provide
a speed signal for correct operation of the
vehicle's Powertrain Control Module (PCM),
electronic transmission, and speed control (if so
equipped). Because of this, it is very
IMPORTANT to change the speedometer's
internal conversion constant if the size of the
tires on the vehicle is changed. Changing the
conversion constant to the proper value when
the tires are changed will also ensure that the
speedometer retains the original factory-set
accuracy.
*
[IS11500(F )03/96]
Some vehicles are equipped with a vehicle speed
(mph/km/h) limiting device that is contained
within the Powertrain Control Module (PCM).
The purpose of this device is to maintain peak
vehicle speed below a specified limit. (Vehicle
speed limits may vary based on engine
displacement.)
*
[IS11600(F )03/96]
If you are experiencing an ªengine cut-outº
condition at high speeds, it may be the result of
this limiting device. It is a normal condition and
can be avoided by reducing vehicle/engine
speed.
File:03ltisf.ex
Update:Tue May 28 08:40:24 1996
ProCarManuals.com

178
*
[GF20785(FM)01/96]
Your trailer towing capability will vary based on
the standard and optional equipment on your
vehicle. Refer to the followingVehicle
Loading/Towing Informationand the Trailer
Towing Tables to determine the specific towing
capability of your vehicle.
*
[GF20790(FM)01/96]
q
Stay within the load limits when you tow.
*
[GF20795(FM)05/96]
q
Carefully and thoroughly prepare your
vehicle for towing, making sure to use the
right equipment and to attach it properly.
(SeePreparing to Towin this chapter.)
*
[GF20800(FM)05/96]
q
Use extra caution when driving your vehicle
while you tow. (SeeDriving while you towin
this chapter.)
*
[GF20805(FM)05/96]
q
Service your vehicle more frequently if you
tow a trailer. (SeeServicing your vehicle if you
towin this chapter.)
*
[GF20810(FM)01/96]
Do not tow a trailer until your vehicle has been
driven at least 500 miles (800 km).
%
*
[GF20820(FM)01/96]
Vehicle Loading/Towing
Information
*
[GF20825(F )01/96]
Your vehicle's load capacity is designated by
weight, not volume, so you cannot necessarily
use all available space with large or heavy loads.
Maximum safe vehicle weights as well as tire,
rim sizes and inflation pressures are specified for
your vehicle at the assembly plant on the Safety
Compliance Certification Label. The Certification
Label is located on the left front door lock facing
or the door latch post pillar.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
ProCarManuals.com

220
*
[GF24190(F )01/96]
RWARNING
To avoid losing control on slippery roads,
do not downshift into Low with the
automatic transmission when moving
faster than 20 mph (32 km/h). Do not
downshift into First with the manual
transmission when moving faster than
5 mph (8 km/h).
[GF24210(F )04/96]
RWARNING
The rear antilock brake system may not
prevent brake lock-up on extremely
slippery surfaces. Rear brake lock-up may
also occur while driving in four-wheel
drive because the transfer case couples the
front and rear axles together.
%
*
[GF24230(F )03/96]
Traction-Lok Rear Axle (If equipped)
*
[GF24240(F )03/96]
This axle provides added drive away traction on
slippery surfaces, particularly when one or more
wheels are on a surface with poor traction.
*
[GF24250(F )03/96]
Extended use of other than matching size tires
on a Traction-Lok rear axle could result in a
permanent reduction in effectiveness. This loss of
effectiveness does not affect normal driving and
should not be noticeable to the driver.
*
[GF24260(F )05/96]
RWARNING
To avoid injury, never run the engine
with one wheel off the ground, such as
when changing a tire.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
ProCarManuals.com

236
*
[ER03200(FM)01/96]
However, you should know that the circuit
breakers will reset themselves and allow the
electrical parts to work again once the overload
on the circuit is removed. If the circuit breakers
continue to cut off electricity, have your vehicle's
electrical system checked.
*
[ER03250(FM)01/96]
If you replace a circuit breaker, use one with the
same amperage rating. To remove a circuit
breaker mounted in the fuse panel, grip it with
your finger and thumb and pull it straight out
of its socket.
%
*
[ER03500(FM)02/96]
Changing a Tire
*
[ER03600(FM)02/96]
If you get a flat tire while you are driving, do
not apply the brake heavily. Instead, gradually
decrease the speed. Hold the steering wheel
firmly and slowly move to a safe place on the
side of the road. Park on a level spot, turn off
the ignition, set the parking brake, and turn on
the hazard flashers.
%*
[ER03700(FM)01/96]
The Conventional Spare Tire
*
[ER03800(F )02/96]
If you have the conventional spare tire, you can
use it as a spare or as a regular tire. This spare
tire is identical to the other tires that come with
your vehicle, although the wheel may not match.
*
[ER04000(F )05/96]
RWARNING
To avoid injury, never run the engine
with one wheel off the ground, such as
when changing a tire.
*
[ER04100(F )01/96]
Extended use of other than matching size spare
tires on a Traction-Lok axle could result in a
permanent reduction in effectiveness. This loss of
effectiveness does not affect normal driving and
should not be noticeable to the driver.
File:10lterf.ex
Update:Tue May 28 08:49:52 1996
ProCarManuals.com

238 [ER07900(F )04/96]5. Remove the wheel retainer from the center
bolt. If necessary, use the tapered end of the
wrench inserted in the retainer for more
leverage.
[ER08000(F )04/96]
6. Remove the spare tire from the channel
assembly.
[ER08100(F )04/96]
RWARNING
Never allow any part of your body to
extend under the channel with mounted
spare tire during removal or installation.
[ER08200(F )04/96]
To stow the spare tire:
[ER08300(F )04/96]
1. Position the spare tire so it is balanced on
the channel assembly.
[ER08400(F )04/96]
2. Screw the retainer on the center bolt and
tighten until the wheel is secured to the
channel.
[ER08500(F )04/96]
3. Put the tapered end of the lug nut wrench
into the channel assembly tube and lift and
line up the channel and eyebolt, so the
shoulder of the eyebolt is pushed all the way
into the slot.
[ER08600(F )04/96]
4. Tighten the eyebolt with the tapered end of
the wrench until the spare tire cannot be
moved by hand pressure. Adjustment of the
driver side channel ball end bolt is not
required when stowing an original
equipment size wheel and tire.
[ER08700(F )04/96]
Position of eyebolt
[ER08800(F )04/96]
After the eyebolt has been tightened it should be
at a right angle to the slot. That is, it should be
at 90 degrees to the center line of slot, if not,
tighten it to that position. This is necessary to
prevent channel separation and/or loss of the
spare tire if the spare becomes loose in the
channel.
File:10lterf.ex
Update:Tue May 28 08:49:52 1996
ProCarManuals.com

248 % [ER16600(FM)04/96]
quarter page art:0020319-CLug nut tightening sequence
*
[ER16700(F )01/96]
RWARNING
Never use wheels or lug nuts different
than the original equipment as this could
damage the wheel or mounting system.
This damage could allow the wheels to
come off while the vehicle is being
driven.
*
[ER16900(F )01/96]
7. Replace any wheel covers, ornaments, or hub
caps that your vehicle has. Make sure that
they are screwed or snapped into place.
[ER17100(F )01/96]
8. Put the tire, jack, and wrench away. (Make
sure jack is securely fastened so it doesn't
rattle when you drive.) The carrier is
designed to hold the temporary spare which
comes with your vehicle. The stowage of a
full size tire in the spare tire carrier may
damage the tire or the vehicle. The flat full
size tire should be stowed securely in the
vehicle until it can be repaired.
*
[ER17400(F )03/96]
9. Unblock the wheels.
[ER17700(F )04/96]
On vehicles equipped with dual rear wheels
retighten the wheel lug nuts to the specified
torque at 100 miles (160 km), and again at 500
miles (800 km) of new vehicle operation and at
the intervals specified in theMaintenance Schedule
and Recordbooklet.
File:10lterf.ex
Update:Tue May 28 08:49:52 1996
ProCarManuals.com

289 %
*
[MC26850(FM)01/96]
Replacing the Tires
*
[MC26900(FM)01/96]
Replace any tires that show wear bands. When
your tire shows a wear band, it has only 1/16
inch (2 mm) of tread left.
*
[MC26950(FM)01/96]
quarter page art:0060006-A
Wear band
*
[MC27000(FM)02/96]
Because your vehicle's tires may wear unevenly,
you may need to replace them before a wear
band appears across the entire tread.
*
[MC27100(FM)01/96]
RWARNING
When replacing full size tires, never mix
radial, bias-belted, or bias-type tires. Use
only the tire sizes that are listed on the
tire pressure decal. Make sure that all tires
are the same size, speed rating, and
load-carrying capacity. Use only the tire
combinations recommended on the decal.
If you do not follow these precautions,
your vehicle may not drive properly and
safely.
*
[MC27350(FM)01/96]
Tires that are larger or smaller than your
vehicle's original tires may also affect the
accuracy of your speedometer.
File:11ltmcf.ex
Update:Tue May 28 08:52:04 1996
ProCarManuals.com

292
*
[MC27480(FM)03/96]
RWARNING
Driving too fast for conditions creates the
possibility of loss of vehicle control.
Driving at very high speeds for extended
periods of time may result in damage to
vehicle components.
%*
[MC28000(F )01/96]
Snow Tires and Chains
*
[MC28050(F )03/96]
The tires on your vehicle have all-weather treads
that provide traction in rain or snow. However,
during the winter months in some climates, you
may need to use snow tires and occasionally
chains for your tires.
*
[MC28100(F )01/96]
RWARNING
Snow tires must be the same size and
grade as the tires you currently have on
your vehicle.
*
[MC28150(F )01/96]
Use chains on the tires only in an emergency or
if the law requires them where you live. If you
choose to use chains on your vehicle's tires, be
aware of the following:
*
[MC28200(F )01/96]
q
Make sure the chains are the right size for
your tires. Use only SAE Class ªSº chains.
Other types may damage your vehicle.
*
[MC28250(F )01/96]
q
Put the chains on tightly with the ends held
down securely. Verify that no chain touches
any wiring, brake lines, or fuel lines. Follow
the chain manufacturer's instructions.
*
[MC28300(F )01/96]
q
Drive slowly. If you can hear the chains rub
or bang against your vehicle, stop the vehicle
and tighten the chains. If you continue to
hear the chains rub or bang against your
vehicle, remove the chains to prevent damage
to your vehicle.
File:11ltmcf.ex
Update:Tue May 28 08:52:04 1996
ProCarManuals.com