2003 Mercury Marauder fuel pump

Cleaner air
Ford endorses the use of reformulated ªcleaner-burningº gasolines to
improve air quality.
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:
²You 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.
²Your ªCheck Engineº indicator may come on. For more information on
the ªCheck Engineº indicator, refer to theInstrument Cluster
chapter.
Fuel Filter
For fuel filter replacement, see your dealer or a qualified service
technician. Refer to the scheduled maintenance guide for the appropriate
intervals for changing the fuel filter.
Replace the fuel filter with an authorized Motorcraft part. The
customer warranty may be void for any damage to the fuel system
if an authorized Motorcraft fuel filter is not used.
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).
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
Maintenance and Specifications
198

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:
²Turn the engine/ignition switch to the off position prior to refueling,
an error in the reading will result if the engine is left running.
²Use the same filling rate setting (low Ð medium Ð high) each time
the tank is filled.
²Allow no more than 2 automatic click-offs when filling.
²Always use fuel with the recommended octane rating.
²Use a known quality gasoline, preferably a national brand.
²Use the same side of the same pump and have the vehicle facing the
same direction each time you fill up.
²Have 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.
5. Follow one of the simple calculations in order to determine fuel
economy:
Calculation 1:Multiply liters used by 100, then divide by total
kilometers traveled.
Calculation 2:Divide total miles traveled by total gallons used.
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
Maintenance and Specifications
199

idle speed control ...................186
lubrication
specifications ..................212, 214
refill capacities ........................211
service points ..........................181
starting after a collision .........143
Engine block heater .................125
Engine oil ..................................182
change oil soon warning,
message center .......................182
checking and adding ..............182
dipstick ....................................182
filter, specifications ........184, 211
recommendations ...................184
refill capacities ........................211
specifications ..................212, 214
Exhaust fumes ..........................125
F
Floor mats ...................................74
Fluid capacities .........................211
Foglamps .....................................39
Fuel ............................................194
calculating fuel
economy ............................55, 198
cap .....................................11, 196
capacity ...................................211
choosing the right fuel ...........196
comparisons with EPA fuel
economy estimates .................201
detergent in fuel .....................198
filling your vehicle with
fuel ...........................194, 196, 198
filter, specifications ........198, 211
fuel filler door override ............73
fuel filler door release ..............72
fuel pump shut-off switch .....143gauge .........................................17
improving fuel economy ........198
low fuel warning light ..............13
octane rating ...................197, 214
quality ......................................197
running out of fuel .................198
safety information relating to
automotive fuels .....................194
Fuses ..................................144±145
G
Garage door opener ....................68
Gas cap (see Fuel cap) ......11, 196
Gas mileage (see Fuel
economy) ...................................198
Gauges .........................................15
battery voltage gauge ...............16
engine coolant temperature
gauge .........................................15
engine oil pressure gauge ........16
fuel gauge ..................................17
odometer ...................................17
speedometer .............................17
tachometer ................................18
trip odometer ............................18
GAWR (Gross Axle Weight
Rating) .......................................136
definition .................................136
driving with a heavy load ......136
location ....................................136
GVWR (Gross Vehicle Weight
Rating) .......................................136
calculating ...............................136
definition .................................136
driving with a heavy load ......136
location ....................................136
Index
223