2003 FORD F350 Rough idle

and adversely affect driver and passenger safety. Frequent inspection of
vehicle chassis components is recommended if the vehicle is subjected to
heavy off-road usage.
Power take off (PTO) capability (if equipped)
Some vehicles are equipped with Power Take Off (PTO) capability. These
vehicles have a special transmission case, internal components and
calibration for PTO usage.
The PTO can be used during mobile and stationary
continuous/intermittent applications.
Gasoline engine:
PTO operation is disabled while the vehicle is in Overdrive (the TCIL will
not be illuminated), in N (Neutral), during engine cranking. Transmission
upshift and downshift schedules will be reduced by about 15% and will
have a firmer shift feel during PTO mobile applications.
The PTO cannot be disabled while the transmission is in D (Drive)
(Overdrive position with Overdrive canceled), 2 (Second) or 1 (First).
Refer to theBody Builder’s Layout Bookfor recommended electrical
installation.
Diesel engine:
The Auxiliary Powertrain Control Module (APCM) will elevate the engine
speed to 1,200 RPM when in PTO mode. PTO operation will be disabled
in stationary drive idle conditions. For more information on the APCM
and PTO operation with the Diesel engine, refer to the APCM manual
supplied with your vehicle.
DRIVING THROUGH WATER
If driving through deep or standing water is unavoidable, proceed very
slowly especially if the depth is not known. Never drive through water
that is higher than the bottom of the hubs (for trucks) or the bottom of
the wheel rims (for cars). Traction or brake capability may be limited
and your vehicle may stall. Water may also enter your engine’s air intake
and severely damage your engine.
Once through the water, always dry the brakes by moving your vehicle
slowly while applying light pressure on the brake pedal. Wet brakes do
not stop the vehicle as quickly as dry brakes.Driving through deep
water where the transmission vent tube is submerged may allow
water into the transmission and cause internal transmission
damage.
Driving
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When lifting a plastic-cased battery, excessive pressure on the
end walls could cause acid to flow through the vent caps,
resulting in personal injury and/or damage to the vehicle or battery.
Lift the battery with a battery carrier or with your hands on opposite
corners.
Keep batteries out of reach of children. Batteries contain sulfuric
acid. Avoid contact with skin, eyes or clothing. Shield your eyes
when working near the battery to protect against possible splashing of
acid solution. In case of acid contact with skin or eyes, flush
immediately with water for a minimum of 15 minutes and get prompt
medical attention. If acid is swallowed, call a physician immediately.
Battery posts, terminals and related accessories contain lead and
lead compounds.Wash hands after handling.
For information on transmission operation after the battery has been
disconnected see“Shift strategy”in the driving section.
Because your vehicle’s engine is also electronically controlled by a
computer, some control conditions are maintained by power from the
battery. When the battery is disconnected or a new battery is installed,
the engine must relearn its idle and fuel trim strategy for optimum
driveability and performance. To begin this process:
1. With the vehicle at a complete stop, set the parking brake.
2. Put the gearshift in P (Park) (automatic transmission) or the neutral
position (manual transmission), turn off all accessories and start the
engine.
3. Run the engine until it reaches normal operating temperature.
4. Allow the engine to idle for at least one minute.
5. Turn the A/C on and allow the engine to idle for at least one minute.
6. Drive the vehicle to complete the relearning process.
•The vehicle may need to be driven 16 km (10 miles) or more to
relearn the idle and fuel trim strategy.
•If you do not allow the engine to relearn its idle trim, the idle
quality of your vehicle may be adversely affected until the idle
trim is eventually relearned.
If the battery has been disconnected or a new battery has been installed,
the clock and the preset radio stations must be reset once the battery is
reconnected.
Maintenance and Specifications
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be void for any damage to the fuel tank or fuel system if the
correct genuine Ford or Motorcraft fuel filler cap is not used.
The fuel system may be under pressure. If the fuel filler cap is
venting vapor or if you hear a hissing sound, wait until it stops
before completely removing the fuel filler cap. Otherwise, fuel may
spray out and injure you or others.
If you do not use the proper fuel filler cap, excessive pressure or
vacuum in the fuel tank may damage the fuel system or cause
the fuel cap to disengage in a collision, which may result in possible
personal injury.
Choosing the right fuel
Use only UNLEADED FUEL. The use of leaded fuel is prohibited by law
and could damage your vehicle.
Do not use fuel containing methanol. It can damage critical fuel system
components.
Your vehicle was not designed to use fuel or fuel additives with metallic
compounds, including manganese-based compounds containing MMT.
Repairs to correct the effects of using a fuel for which your vehicle was
not designed may not be covered by your warranty.
Octane recommendations
Your vehicle is designed to use
“Regular”unleaded gasoline with
pump (R+M)/2 octane rating of 87.
We do not recommend the use of
gasolines labeled as“Regular”that
are sold with octane ratings of 86 or lower in high altitude areas.
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 dealer or a qualified
service technician to prevent any engine damage.
Fuel quality
If you are experiencing starting, rough idle or hesitation driveability
problems during a cold start, try a different brand of“Regular”unleaded
gasoline.“Premium”unleaded gasoline is not recommended (particularly
87(R+M)/2 METHOD
Maintenance and Specifications
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washing ....................................209
waxing .....................................209
wheels ......................................210
wiper blades ............................211
Clutch
fluid
..........................................241
operation while driving
..........124
recommended shift speeds
....125
Compass, electronic
....................62
calibration
.................................63
set zone adjustment
.................63
Console
........................................60
overhead
....................................51
Coolant
checking and adding
..............224
refill capacities
................228, 254
specifications
..................258, 261
Cruise control
(see Speed control)
....................57
Customer Assistance
................175
Ford accessories for your
vehicle
.....................................214
Ford Extended Service
Plan
..........................................202
Getting assistance outside
the U.S. and Canada
..............206
Getting roadside assistance
...175
Getting the service you
need
.........................................200
Ordering additional owner’s
literature
.................................207
The Dispute Settlement
Board
.......................................202
Utilizing the
Mediation/Arbitration
Program
...................................205D
Daytime running lamps
(see Lamps) ................................40
Dipstick
automatic transmission
fluid ..........................................242
engine oil .................................219
Doors
lubricant specifications ..........258
Driveline universal joint and
slip yoke ....................................246
Driving under special
conditions ..................123, 136, 139
sand .........................................138
snow and ice ...........................140
through water .................138, 143
E
Emergencies, roadside
jump-starting ..........................193
Emission control system ..........238
Engine ........................................261
cleaning ...................................210
coolant .....................................224
diesel ...........................................8
fail-safe coolant ......................229
idle speed control ...................222
lubrication specifications ......258,
261
refill capacities ........................254
service points ..........................218
starting after a collision .........176
Engine block heater .................114
Engine oil ..................................219
checking and adding ..............219
dipstick ....................................219
filter, specifications ........221, 254
recommendations ...................221
Index
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