1997 FORD F250 service

150 [GF04300(F )05/96]When the transfer case is in the N (Neutral)
position, the engine and transmission are
disconnected from the rest of the driveline.
Therefore, the vehicle is free to roll even if the
automatic transmission is in P (Park) or the
manual transmission is in gear.
*
[GF04350(F )05/96]
RWARNING
Do not leave the vehicle unattended with
the transfer case in the N (Neutral)
position. Always set the parking brake
fully and turn off the ignition when
leaving the vehicle.
[GF04400(FM)04/96]
To release the parking brake, press the service
brake pedal with your right foot and pull the
parking brake release lever.
*
[GF04500(FM)02/96]
RWARNING
If the parking brake is fully released, but
the Brake System light remains on, have
the brakes checked immediately. They
may not be working properly.
*
[GF04550(F )03/96]
The parking brake is not designed to stop a
moving vehicle, but you can use the parking
brake to stop your vehicle in an emergency if
the normal brakes fail. However, since the
parking brake applies only the rear brakes, the
stopping distance will increase greatly and the
handling of your vehicle will be adversely
affected.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
ProCarManuals.com

162
*
[GF14850(F )01/96]
When you come to a stop, do not downshift
through each gear. Disengage the clutch and use
the brake as necessary. Downshifting through
the gears decreases your vehicle's fuel economy.
*
[GF14900(F )01/96]
RWARNING
Continued use of a damaged or worn
clutch, prolonged clutch slippage or
downshifting at excessive speeds can
result in a failure of the engine,
transmission or clutch components.
*
[GF14950(F )01/96]
Transmission Function
[GF15000(F )04/96]
Upshift at the speeds specified in the chart
available for your engine and transmission. All
forward gears are synchronized allowing you to
shift into them with your vehicle in motion. The
clutch pedal should be fully depressed when
shifting.
*
[GF15050(F )03/96]
NOTE: Shifting during extremely low RPMs
can result in a momentary audible
rattle which disappears as vehicle
RPMs are increased. Shifting at higher
speeds will eliminate this sound.
*
[GF15100(F )01/96]
Parking
*
[GF15150(F )01/96]
To park your vehicle, apply the service brake
pedal, and shift into N (Neutral) while still
maintaining pressure on the service brake. Set
the parking brake fully. Shift into first and turn
off the ignition.
*
[GF15200(F )01/96]
RWARNING
Do not park your vehicle in Neutral, it
may move unexpectedly and injure
someone. Use 1 (First) gear and set the
parking brake fully.
File:09ltgff.ex
Update:Thu May 30 15:25:49 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

179
*
[GF20835(FM)05/96]
RWARNING
It is extremely dangerous to ride in a
cargo area, inside or outside of a vehicle.
In a collision, people riding in these areas
are more likely to be seriously injured or
killed. Do not allow people to ride in any
area of your vehicle that is not equipped
with seats and safety belts. Be sure
everyone in your vehicle is in a seat and
using a safety belt properly.
*
[GF20840(FM)05/96]
RWARNING
Cargo should always be secured to
prevent it from shifting and causing
damage to the vehicle or harm to
passengers.
*
[GF20842(FM)01/96]
Trucks, unlike passenger cars, are basically
custom vehicles designed to carry a load. Most
owners start with a base vehicle and add
production and dealer installed and/or
aftermarket components to suit their tastes and
purposes. Even trucks that are purchased for
personal transportation only are likely to have
considerable optional equipment, such as step
bumpers and light bars, for example.
*
[GF20845(FM)01/96]
Each additional item of equipment affects how
much cargo a vehicle can carry. If a vehicle is
overloaded, performance will suffer and service
concerns may arise.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
ProCarManuals.com

182 %
*
[GF21020(FM)01/96]
Gross Vehicle Weight Rating (GVWR)
*
[GF21030(FM)01/96]
To avoid overloading a vehicle, the owner
should observe the manufacturer's specified
Gross Vehicle Weight Rating. The GVWR is the
maximum total weight of base vehicle,
passengers, optional components and cargo that
a particular vehicle was designed to carry.
%*
[GF21040(FM)01/96]
Gross Axle Weight Rating (GAWR)
*
[GF21050(FM)01/96]
We have all seen a car or a truck that is loaded
down in the rear and riding high in the front.
This is a dangerous condition that usually means
that the rear suspension components are under
severe strain and that vehicle handling is
impaired. There is more to carrying a load than
just payload or GVWR.
*
[GF21060(FM)01/96]
Your Safety Compliance Certification Label not
only gives the GVWR, it also gives the Gross
Axle Weight Rating (GAWR) which is the
carrying capacity for each axle system. For
trucks, the rear axle will be designed to carry
more weight than the front.
*
[GF21070(FM)01/96]
The rating is based on the carrying capacity of
thelowest ratedaxle and suspension component
as well as other factors. This is why it's so
important to observe vehicle loading ratings.
Overloading a vehicle punishes components and
can lead to shortened service life or outright
failure.
*
[GF21080(FM)01/96]
The capacity of the tires is included as part of
the axle and suspension system, which is to be
considered when determining the lowest rated
component. Tires are rated to carry a specific
maximum load at a specific maximum tire
pressure.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
ProCarManuals.com

213 [GF22295(FM)05/96]
Exceeding these limits may allow water to enter
critical vehicle components, adversely affecting
driveability, emissions, and reliability.
[GF22300(FM)01/96]
Servicing your vehicle if you tow
*
[GF22310(FM)05/96]
If you tow a trailer for a long distance, your
vehicle will need to be serviced more frequently
than usual. Refer to theMaintenance Schedule
booklet for additional information.
[GF22320(FM)01/96]
Trailer towing tips
*
[GF22330(FM)01/96]
Before starting on a trip, practice turning,
stopping and backing in an area away from
heavy traffic. Get to know the ªfeelº of the
vehicle/trailer combination.
*
[GF22340(FM)01/96]
Practice backing up. Back up very slowly, with
someone outside at the rear of your trailer to
guide you. Place your hand at the bottom of the
steering wheel and move it in the direction you
want the rear of the trailer to swing. Slight
movement of the steering wheel results in a
much larger movement of the rear of the trailer.
*
[GF22350(FM)01/96]
Allow more room for stopping with a trailer
attached. Trailer brakes should be applied first,
whether manually or automatically controlled,
when approaching a stop.
*
[GF22360(FM)01/96]
For a good handling truck-trailer combination,
the trailer tongue load should be approximately
10-15% of the loaded trailer weight.
*
[GF22370(FM)01/96]
Make a thorough check of your equipment
before starting out on the road. After you have
traveled about 50 miles (80 km) stop in a
protected area and double-check your hitch and
electrical connections. Also check trailer wheel
lug nuts for tightness.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
ProCarManuals.com

214
*
[GF22380(FM)01/96]
When turning, drive slightly beyond the normal
turning point so the trailer wheels will clear
curbs or other obstructions.
*
[GF22400(F )01/96]
When stopped in traffic for long periods of time
in hot weather, place the gearshift selector lever
in P (PARK) to increase the engine idle speed.
This aids in engine cooling and air conditioner
efficiency. If the engine overheats, move the
function selector knob to VENT to stop the
compressor and increase the engine speed for a
short time.
*
[GF22410(FM)01/96]
Vehicles with trailers should not be parked on a
grade. However, if you must park on a grade,
place wheel chocks under the trailer's wheels as
follows:
*
[GF22420(FM)01/96]
q
Apply the brake pedal and hold.
*
[GF22430(FM)01/96]
q
Have another person place the wheel chocks
under the trailer wheels.
*
[GF22440(FM)01/96]
q
With the chocks in place, release the brake
pedal, making sure the chocks are holding.
*
[GF22450(F )01/96]
q
For automatic transmissions Ð apply the
parking brake by pressing the service brake
pedal down firmly with your right foot while
applying the parking brake pedal with your
left foot.
*
[GF22470(F )01/96]
For manual transmissions Ð apply the
service brake and shift into N (NEUTRAL)
while still maintaining pressure on the service
brake pedal. Set the parking brake fully.
*
[GF22480(F )01/96]
q
Shift an automatic transmission into Park (P).
Put the gearshift of a manual transmission in
Reverse. If your vehicle is equipped with
four-wheel drive make sure the transfer case
is not in Neutral.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
ProCarManuals.com

216 [GF22710(F )04/96]q
If necessary, add weight to the rear of the
vehicle or bed to obtain the above and to
comply with U.S. Federal Hydraulic Brake
Requirements, when aftermarket equipment is
added.
[GF22720(F )04/96]
q
The Front Axle Accessory Reserve Capacity
and the Total Accessory Reserve Capacity
listed on the Safety Compliance Certification
Label will help you to determine if the
addition of a snowplow will overload the
vehicle. The total of the weights of all
permanently installed accessories including
the snowplow mount, but not the snowplow
or any other easily removable accessories
must not exceed the Total Accessory Reserve
Capacity. Additionally, the portion of these
weights distributed to the front axles must
not exceed the Front Axle Accessory Reserve
Capacity.
[GF22730(F )04/96]
q
The weight of the snowplow and related
equipment should be properly matched to the
load capacity of your vehicle. The weight of
the installed equipment must not load the
vehicle beyond the GAWR and GVWR listed
on the Safety Compliance Certification Label.
[GF22750(F )04/96]
Equip your vehicle with lights that conform to
Federal and local regulations for snowplowing.
See your dealer for the correct type of wiring.
[GF22760(F )04/96]
Do not plow snow until your vehicle has been
driven 500 miles (800 km). Maintain the vehicle
and snowplow equipment in accordance with
their respective manufacturer's recommendations.
Refer to the notes under Scheduled Maintenance
Services when plowing snow for extended
periods.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
ProCarManuals.com