engine FORD F250 1997 Owner's Guide

155 %
*
[GF08050(FM)05/96]
Driving
%*
[GF08075(FM)05/96]
When to usej(Overdrive)
*
[GF08100(FM)01/96]
This is the normal driving position. As the
vehicle picks up speed, automatic upshifts to
second, third and fourth gears will occur when
jOverdrive is chosen on the selector and the
transmission control switch has not been
pressed. The transmission will shift into the
correct gear when the right speed is achieved,
for the accelerator pedal position you have
chosen.
*
[GF08125(FM)05/96]
When to use Drive
*
[GF08150(FM)01/96]
You will note that there isn't a drive position on
your gearshift indicator. However, you will find
a Transmission Control Switch and an indicator
light labeled ªOverdriveº located on the end of
the gearshift lever. Press this switch and the
word ªOFFº will illuminate on the shift lever
knob. With the word ªOFFº illuminated, the
transmission will operate in gears one through
three. Operating in the Overdrive ªOFFº mode
gives more engine braking than Overdrive and
is useful for descending hills or when towing.
[GF08175(FM)01/96]
quarter page art:0020771-C
Transmission Control Switch and indicator light (located
on the gearshift lever)
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
ProCarManuals.com

156
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[GF08200(FM)01/96]
To return the transmission to the normalj
Overdrive operation, press the transmission
control switch again. The Transmission Control
Indicator Light will not be illuminated when
Overdrive operation resumes. This switch may
be used to select O/D ON or O/D OFF any
time the vehicle is being driven.
*
[GF08225(FM)01/96]
When starting your vehicle, the overdrive system
will automatically be in the normal overdrive
mode.
[GF08250(FM)04/96]
If the Transmission Control Indicator Light is
flashing on and off steadily, a transmission
system malfunction was detected. The
transmission will operate in a failure
management mode and may have harsh
engagements, firm shift feel, or abnormal shift
schedule. If this condition persists, damage to
the transmission could occur. Contact your
dealer as soon as possible.
*
[GF08275(FM)05/96]
When to use 2 (Second)
*
[GF08300(FM)01/96]
Use 2 (Second) to start-up on slippery roads or
to provide additional engine braking on
downgrades. This position provides 2 (Second)
gear operation only.
*
[GF08325(FM)05/96]
When to use 1 (Low)
*
[GF08350(FM)01/96]
Use 1 (Low) to provide maximum engine
braking on steep downgrades. Upshifts from 1
(Low) can be made by manually shifting to 2
(Second) orj(Overdrive). Selection of 1 (Low)
gear provides only low gear operation from
start-up. Selection of 1 (Low) while at higher
speeds provides a shift to second gear, and a
shift to first gear will occur after the vehicle
decelerates to the proper speed.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
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157
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[GF08375(FM)05/96]
P (Park)
*
[GF08400(FM)05/96]
Always come to a complete stop before you shift
into P (Park). This position locks the
transmission and prevents the rear wheels from
turning. To securely latch the gearshift in the P
(Park) position, pull it toward you, push it
completely counterclockwise against the stop,
and then push it toward the instrument panel.
*
[GF08425(FM)05/96]
The gearshift is securely latched in P (Park) if
you cannot rotate it in a clockwise direction
without lifting it toward you.
*
[GF08450(FM)05/96]
RWARNING
Always set the parking brake fully and
make sure the gearshift is latched in P
(Park). Turn off the ignition whenever you
leave your vehicle.
[GF08475(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.
*
[GF08500(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.
*
[GF08525(FM)05/96]
RWARNING
Never leave your vehicle unattended
while it is running.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
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158
*
[GF08550(FM)05/96]
Forced Downshifts
*
[GF08575(FM)05/96]
To gain extra acceleration injOverdrive or
Drive (O/D OFF), push the accelerator to the
floor. The transmission will automatically
downshift to the appropriate gear: third, second
or first.
*
[GF08625(FM)05/96]
Increasing the engine speed above idle without
vehicle movement (such as holding the brake) in
a forward or reverse gear causes transmission
stall.
*
[GF08650(FM)05/96]
NOTE: Continued operation in the stall
condition can result in transmission
overheat, malfunction or fluid
expulsion.
%
*
[GF12100(F )01/96]
Driving with a Manual
Transmission
%*
[GF12200(F )01/96]
Using the Clutch
*
[GF12300(F )01/96]
Make sure the gearshift lever is in the N
(Neutral) position and your right foot is holding
down the brake pedal. Then press the clutch
pedal to the floor with your left foot. Manual
transmission vehicles have a starter interlock
switch. The starter will not crank until the clutch
pedal is fully depressed. Start the engine and
allow it to idle for a few seconds. Move the
gearshift into 1 (First) or R (Reverse).
*
[GF12400(F )01/96]
To move the vehicle, release the clutch slowly
and at the same time press down slowly on the
accelerator so that the vehicle accelerates.
*
[GF12500(F )01/96]
Do not drive with your foot resting on the
clutch pedal and do not use the clutch to hold
your vehicle at a standstill while waiting on a
hill. These actions will seriously reduce clutch
life.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
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160
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[GF13400(F )01/96]
3. Put the gearshift in Neutral and wait at least
3 seconds before shifting into R (Reverse) to
prevent a grinding noise. Do not release the
clutch.
*
[GF13500(F )01/96]
4. Push the gearshift all the way to the right
and pull it back into Reverse.
*
[GF13600(F )01/96]
With the 5-speed transmission you can engage R
(Reverse) only by moving the gearshift from the
left of 3 (Third) and 4 (Fourth) gears before you
shift into R (Reverse). This is a special lockout
feature that protects you from accidentally
shifting into R when you downshift from 5
(Fifth) gear.
*
[GF13700(F )01/96]
5. Once R (Reverse) is engaged, slowly release
the clutch pedal from the floor.
*
[GF13800(F )01/96]
If R (Reverse) is not engaged, continue to push
the clutch pedal in while you put the gearshift
back into Neutral. Then, release the clutch pedal
for a moment and repeat steps 2 through 5.
*
[GF13900(F )01/96]
Upshifting/downshifting
[GF14000(F )04/96]
Upshift and Downshift at the speeds that are
specified in the charts available for your engine
and transmission.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
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161 %
*
[GF14100(F )01/96]
Recommended Shift Speeds
[GF14600(F )04/96]
5.8L & 7.5L Engine with 5-Speed H.D.
Manual Overdrive Transmission (ZF
Transmission)
[GF14650(F )01/96]
twenty pica chart:0020143-C[GF14700(F )04/96]
NOTE: Refer to theDiesel Engine Owner's Guide
Supplementfor shift speed information
on vehicles equipped with 7.3L diesel
engines.
*
[GF14750(F )03/96]
When you slow down or climb a steep hill,
always downshift before the engine starts to lose
power. Downshifting reduces the chance of
stalling and gives your vehicle better acceleration
to increase speed again.
*
[GF14800(F )01/96]
When you drive down steep hills, downshifting
helps you keep a safe speed and helps prevent
unnecessary wear on the brakes.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
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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

163 [GF15250(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.
*
[GF15300(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.
%
*
[GF15400(F )01/96]
Four-Wheel Drive (4WD)
System (If equipped)
*
[GF15500(F )01/96]
When you select the 4WD mode, your light
truck uses all four wheels to power itself. This
increases traction, enabling you to drive your
4x4 over terrain and road conditions two-wheel
drive vehicles cannot.
*
[GF15600(F )01/96]
Power is supplied to all four wheels through a
transfer case that allows you to select four-wheel
drive when necessary. Methods for engaging and
disengaging 4WD and low range will depend on
which system your vehicle has.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
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164 %
*
[GF15700(F )01/96]
4x4 Systems Ð Lever Operated
*
[GF15800(F )01/96]
The lever operated transfer case can be placed
into four positions. The 2H position is the
two-wheel drive position in which power is
delivered only to the rear axle. The 4H position
provides four-wheel drive with power delivered
to the front and rear axles for increased traction.
The 4L position provides four-wheel drive with
power delivered to the front and rear axles
when the above average power is required at
reduced speeds. In the N (neutral) position, there
is no power delivered to either axle.
[GF15850(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.
*
[GF15900(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.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
ProCarManuals.com

166 [GF16050(F )04/96]NOTE: All transfer cases on F-350 4x4 trucks
are equipped with an opening for a
power take-off (PTO). If this opening
is used for a transfer case mounted
PTO, additional transfer case lubricant
is required. Refer to the Refill
Capacities section for lubricant fill
requirements. Vehicles equipped with
an E4OD automatic transmission and a
7.3L diesel engine will require exhaust
modification for PTO clearance. For
vehicles equipped with an E4OD
automatic transmission: If a transfer
case mounted PTO is operated with the
transfer case shift lever in neutral, a
Vehicle Speed Sensor Self-test error
may be set in the Powertrain Control
Module (PCM) causing the
transmission to function abnormally,
and the Transmission Control Indicator
Light (TCIL) may flash on and off
repeatedly. Normal transmission
function should return when the
transfer case has been engaged and the
vehicle is driven. If the TCIL continues
to flash or the transmission continues
to operate abnormally contact your
Ford dealer as soon as possible.
% [GF16100(F )04/96]
4x4 system indicator lights
[GF16150(F )04/96]
A 4x4 light and a LOW RANGE light are
located at the lower right of the instrument
cluster.
[GF16200(F )04/96]
q
2H position Ð Neither the 4X4 or the LOW
RANGE lights are lit.
[GF16250(F )04/96]
q
4H position Ð Only the 4x4 light is lit.
File:09ltgff.ex
Update:Thu May 30 15:25:49 1996
ProCarManuals.com