2004 FORD F SERIES MOTORHOME AND COMMERCIAL CHASSIS fuel cap

•Separate the fittings. Clean the
fittings and inspect the fittings for
damage.
6. Remove fuel filter.
Installation
1. Install the fuel filter.
2. Lubricate the tube end with clean
engine oil meeting Ford
specification WSS-M2C153–Hto ease
assembly.
•Pull on the fitting to make sure it
is fully engaged, then install
safety clip.
•Align and push the tube into the
fitting until you hear a click.
3. Remove the EFI/CFI Fuel
Pressure Gauge.
4. Install the Schrader valve cap securely.
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 1,600 km (1,000
miles) of driving (engine break-in period). You will get a more accurate
measurement after 3,000 km–5,000 km (2,000 miles-3,000 miles).
2004 Motorhome(mot)
Supplement
USA English(fus)
Maintenance and specifications
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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 theRefill capacities
section 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.
For consistent results when filling the fuel tank:
•Turn the engine/ignition switch to the off position 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 kilometers or miles).
2. Each time you fill the tank, record the amount of fuel added (in liters
or gallons).
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.
2004 Motorhome(mot)
Supplement
USA English(fus)
Maintenance and specifications
85

Readiness for Inspection/Maintenance (I/M) testing
In some localities, it may be a legal requirement to pass an I/M test of
the on-board diagnostics system. If your“Check Engine/Service Engine
Soon”light is on, refer to the description in theWarning lights and
chimessection of theInstrument clusterchapter. Your vehicle may not
pass the I/M test with the“Check Engine/Service Engine Soon”light on.
If the vehicle’s powertrain system or its battery has just been serviced,
the on-board diagnostics system is reset to a“not ready for I/M test”
condition. To ready the on-board diagnostics system for I/M testing, a
minimum of 30 minutes of city and highway driving is necessary as
described below:
•First, at least 10 minutes of driving on an expressway or highway.
•Next, at least 20 minutes driving in stop-and-go, city-type traffic with
at least four idle periods.
Allow the vehicle to sit for at least eight hours without starting the
engine. Then, start the engine and complete the above driving cycle. The
engine must warm up to its normal operating temperature. Once started,
do not turn off the engine until the above driving cycle is complete.
On board diagnostics (OBD-II)
Your vehicle is equipped with a computer that monitors the engine’s
emission control system. This system is commonly known as the On
Board Diagnostics System (OBD-II). This OBD-II system protects the
environment by ensuring that your vehicle continues to meet
government emission standards. The OBD-II system also assists the
service technician in properly servicing your vehicle. When theCheck
Engine/Service Engine Soonlight illuminates, the OBD-II system has
detected a malfunction. Temporary malfunctions may cause yourCheck
Engine/Service Engine Soonlight to illuminate. Examples are:
1.
The vehicle has run out of fuel. (The engine may misfire or run poorly.)
2. Poor fuel quality or water in the fuel.
3. The fuel cap may not have been securely tightened.
These temporary malfunctions can be corrected by filling the fuel tank
with good quality fuel and/or properly tightening the fuel cap. After three
driving cycles without these or any other temporary malfunctions
present, theCheck Engine/Service Engine Soonlight should turn off.
(A driving cycle consists of a cold engine startup followed by mixed
city/highway driving.) No additional vehicle service is required.
If theCheck Engine/Service Engine Soonlight remains on, have your
vehicle serviced at the first available opportunity.
2004 Motorhome(mot)
Supplement
USA English(fus)
Maintenance and specifications
89

REFILL CAPACITIES
Fluid Ford Part
NameApplication Capacity
Brake fluid Motorcraft High
Performance
DOT 3 Motor
Vehicle Brake
FluidAll Fill to line on
reservoir
Engine oil
(includes filter
change)Motorcraft SAE
5W-20 Premium
Synthetic Blend
Motor Oil (US)
Motorcraft SAE
5W-20 Super
Premium Motor
Oil (Canada)All 5.7L (6.0
quarts)
Engine coolant
1Motorcraft
Premium Gold
Engine Coolant
(yellow-colored)All 29.0L (30.6
quarts)3
Power steering
fluidMotorcraft
MERCONAT FAll Keep in FULL
range on
dispstick
Rear axle
2Motorcraft SAE
75W-140
Synthetic Rear
Axle LubricantDana 80 3.9L (4.0
quarts)
Dana S135 and
Dana S14511.7L (12.0
quarts)
Fuel tank N/A All 284.0L (75 .0
gallons)
Transmission
4Motorcraft
MERCONAT FAll 16.8L (17.7
quarts)5
Parking brake
assemblyMotorcraft
MERCONAT FAll Fill to bottom of
fill plug hole
2004 Motorhome(mot)
Supplement
USA English(fus)
Maintenance and specifications
110

E
Emergencies, roadside
jump-starting ............................52
Emission control system ............88
Engine ................................113–114
cleaning .....................................66
coolant .......................................73
fail-safe coolant ........................77
idle speed control .....................71
lubrication specifications 112–113
refill capacities ........................110
service points ............................68
starting after a collision ...........40
Engine block heater ...................23
Engine oil ....................................69
checking and adding ................69
dipstick ......................................69
filter, specifications ..........70, 109
recommendations .....................70
refill capacities ........................110
specifications ..................112–113
Exhaust fumes ............................23
F
Fail safe cooling ..........................77
Fluid capacities .........................110
Fuel ..............................................79
calculating fuel economy .........84
capacity ...................................110
choosing the right fuel .............81
comparisons with EPA fuel
economy estimates ...................87
detergent in fuel .......................82
filling your vehicle with
fuel .......................................79, 85
filter, specifications ..........82, 109
fuel pump shut-off switch .......40
improving fuel economy ..........84octane rating .............81, 113–114
quality ........................................81
running out of fuel ...................82
safety information relating to
automotive fuels .......................79
Fuses ......................................41–42
G
Gas mileage
(see Fuel economy) ...................84
Gauges .........................................11
GAWR
(Gross Axle Weight Rating) .......31
calculating .................................33
definition ...................................31
driving with a heavy load ........31
location ......................................31
GVWR
(Gross Vehicle Weight Rating) ..31
calculating ...........................31, 33
definition ...................................31
driving with a heavy load ........31
location ......................................31
H
Hazard flashers ...........................40
Headlamps ...................................14
daytime running lights .............14
flash to pass ..............................15
high beam .................................14
turning on and off ....................14
I
Ignition .........................20, 113–114
Inspection/maintenance (I/M)
testing ..........................................89
2004 Motorhome(mot)
Supplement
USA English(fus)
Index
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