2003 FORD SUPER DUTY manual transmission

F-450 Regular Chassis Cab Dual Rear Wheel
(Fifth Wheel Towing)
Engine Rear axle
ratioMaximum GCWR -
kg (lbs.)Maximum
trailer weight -
kg (lbs.)
4x2 with manual transmission
6.8L 4.88/5.38 9979 (22000) 6577 (14500)
4x2 with automatictransmission
6.8L 4.88 10886 (24000) 7530 (16600)
6.8L 5.38 11793 (26000) 8437 (18600)
4x4 with manual transmission
6.8L 4.88/5.38 9979 (22000) 6441 (14200)
4x4 with automatictransmission
6.8L 4.88 10886 (24000) 7394 (16300)
6.8L 5.38 11793 (26000) 8301 (18300)
F-450 SuperCab Chassis Cab Dual Rear Wheel
(Fifth Wheel Towing)
Engine Rear axle
ratioMaximum GCWR -
kg (lbs.)Maximum
trailer weight -
kg (lbs.)
4x2 with manual transmission
6.8L 4.88/5.38 9979 (22000) 6441 (14200)
4x2 with automatictransmission
6.8L 4.88 10886 (24000) 7348 (16200)
6.8L 5.38 11793 (26000) 8255 (18200)
4x4 with manual transmission
6.8L 4.88/5.38 9979 (22000) 6260 (13800)
4x4 with automatictransmission
6.8L 4.88 10886 (24000) 7167 (15800)
6.8L 5.38 11793 (26000) 8074 (17800)
Driving
143

F-450 Crew Cab Chassis Cab Dual Rear Wheel
(Fifth Wheel Towing)
Engine Rear axle
ratioMaximum GCWR -
kg (lbs.)Maximum
trailer weight -
kg (lbs.)
4x2 with manual transmission
6.8L 4.88/5.38 9979 (22000) 6350 (14000)
4x2 with automatictransmission
6.8L 4.88 10886 (24000) 7257 (16000)
6.8L 5.38 11793 (26000) 8165 (18000)
4x4 with manual transmission
6.8L 4.88/5.38 9979 (22000) 6214 (13700)
4x4 with automatictransmission
6.8L 4.88 10886 (24000) 7121 (15700)
6.8L 5.38 11793 (26000) 8029 (17700)
F-550 Regular Cab Chassis Cab Dual Rear Wheel
(Fifth Wheel Towing)
Engine Rear axle
ratioMaximum GCWR -
kg (lbs.)Maximum
trailer weight -
kg (lbs.)
4x2 with automatictransmission
6.8L 4.88 10886 (24000) 7484 (16500)
6.8L 5.38 11793 (26000) 8391 (18500)
4x4 with automatictransmission
6.8L 4.88 10886 (24000) 7348 (16200)
6.8L 5.38 11793 (26000) 8255 (18200)
F-550 SuperCab Chassis Cab Dual Rear Wheel
(Fifth Wheel Towing)
Engine Rear axle
ratioMaximum GCWR -
kg (lbs.)Maximum
trailer weight -
kg (lbs.)
4x2 with automatictransmission
6.8L 4.88 10886 (24000) 7348 (16200)
Driving
144

Driving while you tow
When towing a trailer:
•Turn off the speed control. The speed control mayshut off
automaticallywhen you are towing on long, steep grades.
•Consult your local motor vehicle speed regulations for towing a trailer.
•To eliminate excessive shifting, use a lower gear. This will also assist
in transmission cooling. (For additional information, refer to the
Understanding the positions of the 4–speed automatic
transmissionsection in this chapter.
•Anticipate stops and brake gradually.
•Do not exceed the GCWR rating or transmission damage mayoccur.
Servicing after towing
If you tow a trailer for long distances, your vehicle will require more
frequent service intervals. Refer to your scheduled maintenance guide for
more information.
Trailer towing tips
•Practice turning, stopping and backing up before starting on a trip to
get the feel of the vehicle trailer combination. When turning, make
wider turns so the trailer wheels will clear curbs and other obstacles.
•Allow more distance for stopping with a trailer attached.
•The trailer tongue weight should be 10–15% of the loaded trailer
weight.
•After you have traveled 80 km (50 miles), thoroughly check your
hitch, electrical connections and trailer wheel lug nuts.
•To aid in engine/transmission cooling and A/C efficiencyduring hot
weather while stopped in traffic, place the gearshift lever in P (Park)
(automatic transmission) or N (Neutral) (manual transmissions).
•Vehicles with trailers should not be parked on a grade. If you must
park on a grade, place wheel chocks under the trailer’s wheels.
Launching or retrieving a boat
When backing down a ramp during boat launching or retrieval,
•Do not allow the static water level to rise above the bottom edge of
the rear bumper.
•Do not allow waves to break higher than 15 cm (6 inches) above the
bottom edge of the rear bumper.
•Disconnect the trailer tow electrical connector to prevent blown fuses
caused bywater entering into your trailer’s electrical wiring.
Driving
147

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse Panel
Description
12 20A* Cigar lighter/OBD II
13 5A* Power mirrors/switches
14 15A* Daytime running lamps (DRL)
15 10A* Not used
16 15A* Not used
17 15A* Exterior lamps
18 20A* Turn lamps/Brake on-off switch (high)
19 10A* Bodysecuritymodule/4x4 module
20 — Not used
21 25A* Not used
22 20A* Engine control
23 20A* Engine control (gasoline engine only)
24 15A* Not used
25 10A* 4-Wheel Anti-lock Brake System (4WABS)
module
26 10A* Air bags
27 15A* Ignition switch Run feed
28 10A* EATC module/Front blower relaycoil
29 10A* Customer access
30 15A* Highbeam headlamps
31 15A* Clutch interlock switch (manual transmissions
only), Transmission range sensor (automatic
transmissions only) then to starter relay coil
(all transmissions)
32 5A* Radio (start)
33 15A* Front wiper
34 10A* Brake on-off switch
35 10A* Instrument cluster
36 10A* PCM Keep-Alive
37 15A* Horn
38 20A* Trailer tow park lamps and backup lamps
39 — Not used
Roadside Emergencies
157

3. Fullyinsert the jack handle
through the bumper hole and into
the guide tube. The keyand lock
will engage with a slight push and
counterclockwise turn. Some
resistance will be felt when turning
the jack handle assembly.
4. Turn the handle counterclockwise
and lower the spare tire until you
can slide the tire rearward and the
cable is slack.
5. Remove the retainer through the center of the wheel.
Tire change procedure
1. Park on a level surface, activate
hazard flashers and set the parking
brake.
•Automatic transmission: Place
gearshift lever in P (Park).
•Manual transmission: Place
gearshift lever in R (Reverse).
•Electronic Shift On the Fly4WD:
Place transfer case in any
position.
•Manual shift transfer case 4WD:
Place transfer case in 2H, 4H or
4L.
To prevent the vehicle from
moving when you change a
tire, be sure the parking brake is
set, then block (in both
directions) the wheel that is
diagonallyopposite (other side
and end of the vehicle) to the tire
being changed.
2. Turn engine off and block the diagonallyopposite wheel (block not
provided).
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161

3. Remove the jack, jack handle, lug wrench and spare tire from the
stowage locations.
4. Use the tip of the lug wrench to remove anywheel trim.
5. Loosen each wheel lug nut
one-half turn counterclockwise but
do not remove them until the wheel
is raised off the ground.
When one of the rear wheels is off the ground, the transmission
alone will not prevent the vehicle from moving or slipping off the
jack, even if the transmission is in P (Park) (automatic transmission)
or R (Reverse) (manual transmission). To prevent the vehicle from
moving when you change the tire, be sure that the parking brake is set
and the diagonallyopposite wheel is blocked.
If the vehicle slips off the jack, you or someone else could be
seriouslyinjured.
The following steps apply to F250/F350 only:
6. Insert the hooked end of the jack
handle into the jack and use the
handle to slide the jack under the
vehicle.
7. Position the jack according to the
following guides:
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162

SERVICE RECOMMENDATIONS
To help you service your vehicle:
•We highlight do-it-yourself items in the engine compartment for easy
location.
•We provide a scheduled maintenance guide which makes tracking
routine service easy.
If your vehicle requires professional service, your dealership can provide
the necessaryparts and service. Check yourWarranty Guide/Owner
Information Guideto find out which parts and services are covered.
Use onlyrecommended fuels, lubricants, fluids and service parts
conforming to specifications. Motorcraft parts are designed and built to
provide the best performance in your vehicle.
PRECAUTIONS WHEN SERVICING YOUR VEHICLE
•Do not work on a hot engine.
•Make sure that nothing gets caught in moving parts.
•Do not work on a vehicle with the engine running in an enclosed
space, unless you are sure you have enough ventilation.
•Keep all open flames and other burning (cigarettes) material away
from the batteryand all fuel related parts.
Working with the engine off
•Automatic transmission:
1. Set the parking brake and shift to P (Park).
2. Turn off the engine and remove the key.
3. Block the wheels.
•Manual transmission:
1. Set the parking brake, depress the clutch and place the gearshift in 1
(First).
2. Turn off the engine and remove the key.
3. Block the wheels.
Working with the engine on
•Automatic transmission:
1. Set the parking brake and shift to P (Park).
2. Block the wheels.
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191

•Manual transmission:
1. Set the parking brake, depress the clutch and place the gearshift in N
(Neutral).
2. Block the wheels.
Note:Do not start your engine with the air cleaner removed and do not
remove it while the engine is running.
OPENING THE HOOD
1. Inside the vehicle, pull the hood
release handle located under the
bottom left corner of the instrument
panel.
2. Go to the front of the vehicle and
release the auxiliarylatch located
under the right center of the hood.
Slide the handle to release the
auxiliarylatch.
3. Lift the hood until the lift
cylinders hold it open.
H
O
O
D
Maintenance and Specifications
192