2011 FORD SUPER DUTY fuel pump

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
38 Relay Powertrain control module
(PCM) (diesel engine),
Electronic control module (ECM)
(gas engine)
39 10A** 4x4 hub lock
40 15A** 4x4 electronic lock
41 — Not used
42 — Not used
43 — Not used
44 — Not used
45 10A** Run/start relay coil
46 10A** Transmission control module
(TCM) keep-alive power
47 10A** A/C clutch feed
48 Relay Run/start
49 10A** Rearview camera system
50 10A** Blower motor relay coil
51 — Not used
52 10A** PCM/ECM/TCM run/start
53 10A** 4x4 module
54 10A** Anti-lock brake system (ABS)
run/start
55 10A** Rear window defroster coil,
Battery charge coil
56 20A** Passenger compartment fuse
panel run/start feed
57 Relay Fuel pump
58 — Not used
59 — Not used
60 — Not used
61 — Not used
62 — Not used
Roadside Emergencies
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2011 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)

Fuse/Relay
LocationFuse Amp
RatingProtected Circuits
63 — Not used
64 — Not used
65 — Not used
66 20A** Fuel pump
67 — Not used
68 10A** Fuel pump relay coil
69 — Not used
70 10A** Trailer tow backup lamp
71 10A** Canister vent (gas engine)
72 10A** PCM/ECM relay coil feed
keep-alive power
73 — Not used
74 Relay Trailer tow left-hand stop/turn
75 Relay Trailer tow right-hand stop/turn
76 Relay Backup lamp
77 — Not used
78 — Not used
79 — Not used
80 — Not used
81 — Not used
82 20A* Auxiliary power point #2
83 20A* Auxiliary power point #1
84 30A* 4x4 shift motor
85 30A* Heated/cooled seats
86 25A* ABS coil feed
87 20A* Auxiliary power point #5
88 — Not used
89 40A* Starter motor
90 25A* Trailer tow battery charge
91 — Not used
92 20A* Auxiliary power point #4
Roadside Emergencies
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2011 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)

Pure ethanol is the alcohol which is the intoxicating agent in liquor, beer
and wine. It is distilled from the fermentation of plants such as field corn
and sugar cane. When ethanol is produced for use in motor fuels, a small
amount of gasoline is added to make it unfit for beverage use. The
resulting ethanol blend is called denatured fuel ethanol meaning that it is
denatured with 2% to 5% gasoline and is suitable for automotive use.
During the summer season, fuel ethanol may contain a maximum of 85%
denatured ethanol (Ed85) and 15% unleaded gasoline. The fuel ethanol
has a higher octane rating than unleaded regular or premium gasoline
and this allows the design of engines with greater efficiency and power.
Winter blends may contain up to 75% denatured ethanol (Ed75) and up
to 25% unleaded gasoline to enhance cold engine starts. Severely cold
weather may require additional measures for reliable starting. Refer to
Startingin theDrivingchapter.
Ethanol is more chemically active than gasoline. It corrodes some metals
and causes some plastic and rubber components to swell, break down or
become brittle and crack, especially when mixed with gasoline. Special
materials and procedures have been developed for flexible fuel vehicles
and the dispensers used by ethanol fuel providers.
WARNING:Flexible fuel components and standard unleaded
gasoline fuel components are not interchangeable. If your vehicle
is not serviced in accordance with flexible fuel vehicles procedures,
damage may occur and your warranty may be invalidated.
WARNING:When refueling always shut the engine off and
never allow sparks or open flames near the filler neck. Never
smoke while refueling. Fuel vapor is extremely hazardous under certain
conditions. Care should be taken to avoid inhaling excess fumes.
WARNING:The flow of fuel through a fuel pump nozzle can
produce static electricity, which can cause a fire if fuel is
pumped into an ungrounded fuel container.
Maintenance and Specifications
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2011 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)

Refueling
WARNING:Fuel vapor burns violently and a fuel fire can cause
severe injuries. To help avoid injuries to you and others:
•Read and follow all the instructions on the pump island;
•Turn off your engine when you are refueling;
•Do not smoke if you are near fuel or refueling your vehicle;
•Keep sparks, flames and smoking materials away from fuel;
•Stay outside your vehicle and do not leave the fuel pump unattended
when refueling your vehicle — this is against the law in some places;
•
Keep children away from the fuel pump; never let children pump fuel.
•Do not use personal electronic devices while refueling.
Use the following guidelines to avoid electrostatic charge build-up when
filling an ungrounded fuel container:
•Place approved fuel container on the ground.
•DO NOT fill a fuel container while it is in the vehicle (including the
cargo area).
•
Keep the fuel pump nozzle in contact with the fuel container while filling.
•DO NOT use a device that would hold the fuel pump handle in the fill
position.
Fuel filler cap
When fueling your vehicle:
1. Turn the engine off.
2. Carefully turn the filler cap counterclockwise until it spins off.
3. Pull to remove the cap from the fuel filler pipe.
4. To install the cap, align the tabs on the cap with the notches on the
filler pipe.
5. Turn the filler cap clockwise until it clicks.
If the check fuel cap indicator comes on and stays on after you start the
engine, the fuel filler cap may not be properly installed. Turn off the
engine, remove the fuel filler cap, align the cap properly and reinstall it.
If you must replace the fuel filler cap, replace it with a fuel filler
cap that is designed for your vehicle. The vehicle warranty may
be void for any damage to the fuel tank or fuel system if the
correct genuine Ford or Motorcraftfuel filler cap is not used.
Maintenance and Specifications
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2011 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)

Octane recommendations
Your vehicle is designed to use “Regular” unleaded gasoline with a pump
(R+M)/2 octane rating of 87. Some stations offer fuels posted as
“Regular” with an octane rating below 87, particularly in high altitude
areas. Fuels with octane levels below 87 are not recommended.
Do not be concerned if your engine
sometimes knocks lightly. However,
if it knocks heavily under most
driving conditions while you are
using fuel with the recommended
octane rating, see your authorized dealer to prevent any engine damage.
FFV engine (if equipped)
If your vehicle is flex fuel capable, it is designed to use Fuel Ethanol
(Ed75–Ed85), “Regular” unleaded gasoline or any mixture of the two fuels.
Use of other fuels such as Fuel Methanol may cause powertrain
damage, a loss of vehicle performance, and your warranty may be
invalidated.
It is best not to alternate repeatedly between gasoline and E85. If you do
switch fuels, it is recommended that you add as much fuel as
possible—at least half a tank. Do not add less than five gallons (18.9L)
when refueling. You should drive the vehicle immediately after refueling
for at least 5 miles (8 km) to allow the vehicle to adapt to the change in
ethanol concentration.
If you exclusively use E85 fuel, it is recommended to fill the fuel tank
with regular unleaded gasoline at each scheduled oil change.
Fuel quality
Unleaded gasoline engines
If you experience starting, rough idle, hesitation or driveability problems
during a cold start, try a different brand of “Regular” unleaded gasoline.
“Premium” unleaded gasoline is not recommended for vehicles designed
to use “Regular” unleaded gasoline because it may cause these problems
to become more pronounced. If the problems persist, see your
authorized dealer.
FFV engines
If you experience starting, rough idle, hesitation or driveability problems
during a cold start, try a different brand of E85 fuel. If the driveability
problems continue, fill the vehicle with regular unleaded gasoline and
drive vehicle normally until gasoline is used. See your authorized dealer
if the problem persists.
87(R+M)/2 METHOD
Maintenance and Specifications
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2011 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)

Do not add aftermarket fuel additive products to your fuel tank. It
should not be necessary to add any aftermarket products to your fuel
tank if you continue to use high quality fuel of the recommended octane
rating. These products have not been approved for your engine and
could cause damage to the fuel system. Repairs to correct the effects of
using an aftermarket product in your fuel may not be covered by your
warranty.
Many of the world’s automakers approved the World-Wide Fuel Charter
that recommends gasoline specifications to provide improved
performance and emission control system protection for your vehicle.
Gasolines that meet the World-Wide Fuel Charter should be used when
available. Ask your fuel supplier about gasolines that meet the
World-Wide Fuel Charter.
Diesel engine (if equipped)
Refer to the diesel supplement for information regarding diesel fuel
recommendations and requirements of your diesel-powered truck.
Cleaner air
Ford endorses the use of reformulated “cleaner-burning” gasolines to
improve air quality, per the recommendations in theChoosing the right
fuelsection.
Running out of fuel
Avoid running out of fuel because this situation may have an adverse
effect 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 1 gallon (3.8L) of fuel is enough to restart the
engine. If the vehicle is out of fuel and on a steep grade, more than
1 gallon (3.8L) may be required.
•The service engine soon
indicator may come on. For more
information on the service engine soon
indicator, refer to
Warning lights and chimesin theInstrument Clusterchapter.
Maintenance and Specifications
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USA(fus)

•Cover interior trim to prevent fading.
•Keep all rubber parts free from oil and solvents.
Engine
•The engine oil and filter should be changed prior to storage, as used
engine oil contain contaminates that may cause engine damage.
•Start the engine every 15 days. Run at fast idle until it reaches normal
operating temperature.
•With your foot on the brake, shift through all the gears while the
engine is running.
Fuel system
•Fill the fuel tank with high-quality fuel until the first automatic shutoff
of the fuel pump nozzle.
Note:During extended periods of vehicle storage (30 days or more),
fuel may deteriorate due to oxidation. This can damage rubber and other
polymers in the fuel system and may also clog small holes.
A quality fuel stabilizer should be added whenever actual or expected
storage periods exceed 30 days. Follow the instructions on the label. The
vehicle should then be operated at idle speed to circulate the additive
throughout the fuel system.
Cooling system
•Protect against freezing temperatures.
Battery
•Check and recharge as necessary. Keep connections clean and covered
with a light coat of grease.
•If storing your vehicle for more than 30 days without recharging the
battery, it may be advisable to disconnect the battery cables to ensure
battery charge is maintained for quick starting.
Note:If battery cables are disconnected, it will be necessary to reset
memory features.
Brakes
•Make sure brakes and parking brake are fully released.
Tires
•Maintain recommended air pressure.
Maintenance and Specifications
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USA(fus)

refill capacities ........................400
service points ..................362–364
Engine block heater .................263
Engine oil ..................................366
checking and adding ..............366
dipstick ....................................366
filter, specifications ........367, 399
recommendations ...................367
refill capacities ........................400
Event data recording ....................8
Exhaust fumes ..........................262
F
Fail safe cooling ........................374
Fleet MyKey programming ......126
Flexible Fuel Vehicle
(FFV) .........................................377
Floor mats .................................120
Fluid capacities .........................400
Fog lamps ....................................87
Four-Wheel Drive vehicles .......293
driving off road .......................299
electronic shift ................294, 298
indicator light .........................295
lever operated shift ................295
manual locking hubs ..............293
preparing to drive your
vehicle .....................................278
Fuel ............................................377
calculating fuel
economy ............................25, 384
cap ...........................................380
capacity ...................................400
choosing the right fuel ...........381
detergent in fuel .....................383
filling your vehicle
with fuel ..................377, 380, 384filter, specifications ........377, 399
fuel pump shut-off ..................313
improving fuel economy ........384
octane rating ...................382, 404
quality ......................................382
running out of fuel .................383
safety information relating to
automotive fuels .....................377
Fuel - flex fuel vehicle
(FFV) .........................377, 381–382
Fuses ..................................313–314
G
Garage door opener ..................115
Gas cap (see Fuel cap) ............380
Gas mileage
(see Fuel economy) .................384
Gauges .........................................21
H
Hazard flashers .........................312
Headlamps ...................................86
aiming ..................................88–89
autolamp system .......................86
daytime running lights .............88
flash to pass ..............................87
high beam .................................87
replacing bulbs .........................92
turning on and off ....................86
Heating
heating and air conditioning
system .................................78, 81
Hill descent mode .....................275
Hill launch assist .......................287
Hood ..........................................362
Index
437
2011 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)