2007 FORD SUPER DUTY fuel pump

Running out of fuel
Avoid running out of fuel because this situation may have an adverse
affect on powertrain components.
If you have run out of fuel:
•You may need to cycle the ignition from OFF to ON several times after
refueling to allow the fuel system to pump the fuel from the tank to
the engine. On restarting, cranking time will take a few seconds longer
than normal.
•Normally, adding one gallon of fuel is enough to restart the engine. If
the vehicle is out of fuel and on a steep grade, more than one gallon
may be required.
•TheService engine soonindicator (
) may come on. For more
information on theService engine soonindicator, refer to the
Instrument Clusterchapter.
ESSENTIALS OF GOOD FUEL ECONOMY
Measuring techniques
Your best source of information about actual fuel economy is you, the
driver. You must gather information as accurately and consistently as
possible. Fuel expense, frequency of fill-ups or fuel gauge readings are
NOT accurate as a measure of fuel economy. We do not recommend
taking fuel economy measurements during the first 1,000 miles (1,600
km) of driving (engine break-in period). You will get a more accurate
measurement after 2,000 miles-3,000 miles (3,000 km–5,000 km).
Filling the tank
The advertised fuel capacity of the fuel tank on your vehicle is equal to
the rated refill capacity of the fuel tank as listed in theMaintenance
Product Specifications and Capacitiessection of this chapter.
The advertised capacity is the amount of the indicated capacity and the
empty reserve combined. Indicated capacity is the difference in the
amount of fuel in a full tank and a tank when the fuel gauge indicates
empty. Empty reserve is the small amount of fuel remaining in the fuel
tank after the fuel gauge indicates empty.
The amount of usable fuel in the empty reserve varies and should
not be relied upon to increase driving range. When refueling your
vehicle after the fuel gauge indicates empty, you might not be
able to refuel the full amount of the advertised capacity of the
fuel tank due to the empty reserve still present in the tank.
2007 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
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For consistent results when filling the fuel tank:
•Turn the engine/ignition off prior to refueling, an error in the reading
will result if the engine is left running.
•Use the same filling rate setting (low-medium-high) each time the
tank is filled.
•Allow no more than 2 automatic click-offs when filling.
•Always use fuel with the recommended octane rating.
•Use a known quality gasoline, preferably a national brand.
•Use the same side of the same pump and have the vehicle facing the
same direction each time you fill up.
•Have the vehicle loading and distribution the same every time.
Your results will be most accurate if your filling method is consistent.
Calculating fuel economy
1. Fill the fuel tank completely and record the initial odometer reading
(in miles or kilometers).
2. Each time you fill the tank, record the amount of fuel added (in
gallons or liters).
3. After at least three to five tank fill-ups, fill the fuel tank and record
the current odometer reading.
4. Subtract your initial odometer reading from the current odometer
reading.
5. Follow one of the simple calculations in order to determine fuel
economy:
Calculation 1:Divide total miles traveled by total gallons used.
Calculation 2:Multiply liters used by 100, then divide by total
kilometers traveled.
Keep a record for at least one month and record the type of driving (city
or highway). This will provide an accurate estimate of the vehicle’s fuel
economy under current driving conditions. Additionally, keeping records
during summer and winter will show how temperature impacts fuel
economy. In general, lower temperatures give lower fuel economy.
Driving style — good driving and fuel economy habits
Give consideration to the lists that follow and you may be able to change
a number of variables and improve your fuel economy.
2007 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
276

Four-Wheel Drive vehicles .......187
description ..............................191
driving off road .......................193
electronic shift ................187, 191
indicator light .........................188
lever operated shift ................189
manual locking hubs ..............187
preparing to drive your
vehicle .....................................178
Fuel ............................................270
calculating fuel
economy ............................75, 275
cap ...........................................272
capacity ...................................291
choosing the right fuel ...........273
comparisons with EPA fuel
economy estimates .................278
detergent in fuel .....................274
filling your vehicle with
fuel ...........................270, 272, 275
filter, specifications ........270, 290
fuel pump shut-off switch .....207
improving fuel economy ........275
octane rating ...................274, 295
quality ......................................274
running out of fuel .................275
safety information relating to
automotive fuels .....................270
Fuel pump shut-off switch .......207
Fuses ..................................208–209
G
Gas cap (see Fuel cap) ............272
Gas mileage
(see Fuel economy) .................275
Gauges .........................................16
transmission fluid
temperature gauge ...................20
H
Hazard flashers .........................207Head restraints ...........................92
Headlamps ...................................42
aiming ..................................44, 46
autolamp system
.......................42
daytime running lights
.............43
flash to pass
..............................44
high beam
.................................44
replacing bulbs
.............49–50, 52
turning on and off
....................42
Heating
heating and air conditioning
system
...........................36–37, 39
Hood
..........................................254
I
Ignition
...............................169, 295
Infant seats
(see Safety seats)
.....................123
Inspection/maintenance (I/M)
testing
........................................280
Instrument panel
cleaning
...................................248
cluster
........................................12
lighting up panel and
interior
.......................................44
J
Jump-starting your vehicle
......230
K
Keyless entry system
.................90
Keys
positions of the ignition
.........169
2007 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Index
303