ignition LINCOLN TOWN CAR 2003 Workshop Manual

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
11 20A Stoplamps/Speed control
12 15A Instrument cluster, Anti-theft,
Ignition coils
13 10A Anti-lock brake module, Traction
control switch, ABS relay
14 15A Transmission control switch, LCM,
Decklid
15 15A Multi-function switch, Turn signals
16 7.5A Wiper Control Module (WCM)
17 10A Digital Transmission Range (DTR)
sensor, Back-up lamps, EC
mirrors, Back-up aide
18 7.5A LCM, Front radio control unit,
Electronic day/night mirror,
Compass module/Rear
audio/Climate control module,
TCU, Heated seats switch, Rain
sense, Door lock switches, OHC,
Rear heated seats switch
19 10A EATC, Clock, Instrument cluster,
PCM
20 7.5A ABS, Shift lock
21 15A Multi-function switch, Hazard
lamps
22 15A Multi-function switch, High
mounted stop lamps, Stop lamps
23 20A Datalink connector, I/P cigar
lighter, Rear door cigar lighters
(Long Wheel Base only)
24 5A Front radio control unit
25 15A LCM, Courtesy/Demand lamps
26 5A DTR sensor, Starter relay coil
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
190

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
13 15A* To alternator
14 20A* Rear door cigar lighters (Long
Wheel Base only)
15–Not used
16–Not used
17–Not used
18–Not used
19 15A* MAF sensor, DPFE sensor,
Injectors, PCM
20 15A* PCM, Canister vent solenoid,
VMV, HEGOs
21–Not used
22–Not used
23–Not used
24–Not used
101 50A** Ignition switch, Starter
102 50A** Cooling fan (variable speed)
103 40A** Blower motor
104 40A** Heated backlight, IP fuse 28
105 30A** EEC relay, PDB fuses 19, 20
106 40A** ABS module
107 40A** IP fuse 29, Delayed accessories
relay (windows, moon roof, radio)
108 30A** IP fuse 30, Memory seats, Power
seats, Lumbar, Adjustable pedals,
Memory mirrors
109 40A** Power decklid
110—Not used
111—Not used
112 40A** Ignition switch, IP fuses, 10, 12,
14, 16, 18
113 40A** IP fuses, 1, 5, 7, 9, 31
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Roadside Emergencies
193

Use the following guidelines to avoid static 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
Your fuel tank filler cap has an indexed design with a 1/8 turn on/off
feature.
When fueling your vehicle:
1. Turn the engine off.
2. Carefully turn the filler cap counterclockwise 1/8 of a turn until it
stops.
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 1/8 of a turn until it stops.
The“Check Fuel Cap”light illuminates when the ignition is turned to the
ON position. It will also illuminate when the fuel filler cap is not properly
installed. Proper fuel filler cap installation is checked automatically as
the vehicle is driven, but not until after some fuel is used (fuel gauge
drops below full). Once the fuel filler cap is properly secured, the“Check
Fuel Cap”light will turn off after a short period of driving.
If you must replace the fuel filler cap, replace it with a fuel filler
cap that is designed for your vehicle. The customer warranty may
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.
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
239

Cleaner air
Ford endorses the use of reformulated“cleaner-burning”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:
•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.
•Your“Service Engine Soon”indicator may come on. For more
information on the“Service Engine Soon”indicator, refer to the
Instrument clusterchapter.
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
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
241

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.
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
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
242

•Do not turn off the ignition while your vehicle is moving, especially at
high speeds.
•Have the items listed in your scheduled maintenance guide performed
according to the specified schedule.
The scheduled maintenance items listed in the scheduled maintenance
guide are essential to the life and performance of your vehicle and to its
emissions system.
If other than Ford, Motorcraft or Ford-authorized parts are used for
maintenance replacements or for service of components affecting
emission control, such non-Ford parts should be equivalent to genuine
Ford Motor Company parts in performance and durability.
Do not park, idle, or drive your vehicle in dry grass or other dry
ground cover. The emission system heats up the engine
compartment and exhaust system, which can start a fire.
Illumination of the“Service Engine Soon”light, charging system warning
light or the temperature warning light, fluid leaks, strange odors, smoke
or loss of engine power, could indicate that the emission control system
is not working properly.
Exhaust leaks may result in entry of harmful and potentially
lethal fumes into the passenger compartment.
Do not make any unauthorized changes to your vehicle or engine. By
law, vehicle owners and anyone who manufactures, repairs, services,
sells, leases, trades vehicles, or supervises a fleet of vehicles are not
permitted to intentionally remove an emission control device or prevent
it from working. Information about your vehicle’s emission system is on
the Vehicle Emission Control Information Decal located on or near the
engine. This decal identifies engine displacement and gives some tune up
specifications.
Please consult yourWarranty Guidefor complete emission warranty
information.
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
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
245

2Add 118 ml (4 oz.) of Additive Friction Modifier XL-3 or equivalent
meeting Ford specification EST-M2C118-A for complete refill of
Traction-Lok rear axles.
For limousine, use 2.1-2.3L (4.50-4.75 pints) of Motorcraft SAE 75W-140
High Performance Rear Axle Lubricant XY-75W140–QL or equivalent
meeting Ford Specification WSL-M2C192-A for complete refill of rear
axles.
3Ensure the correct transmission fluid is used. Transmission fluid
requirements are indicated on the dipstick or the dipstick handle.
MERCONand MERCONV are not interchangeable. DO NOT mix
MERCONand MERCONV. Refer to your scheduled maintenance guide
to determine the correct service interval.
ENGINE DATA
Engine 4.6L SOHC V8 engine
Cubic inches 281
Required fuel 87 octane
Firing order 1-3-7-2-6-5-4-8
Spark plug gap 1.3-1.4 mm (0.052-0.056 inch)
Ignition system Coil on plug
Compression ratio 9.4:1
VEHICLE DIMENSIONS
Vehicle dimensions mm (in)
(1) Overall length 5 471 (215.4)/5 623 (221.4)*
(2) Overall width 1 987 (78.2)
(3) Overall height 1 489 (58.6)
(4) Wheelbase 2 990 (117.7)/3 142 (123.7)
*
(5) Track - Front 1 611 (63.4)
(5) Track - Rear 1 673 (65.9)
*Denotes long wheel base
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
259

recommendations ...................228
refill capacities ........................256
specifications ..................257, 259
Exhaust fumes ..........................169
F
Fail safe cooling ........................235
Floor mats .................................112
Fluid capacities .........................256
Foglamps .....................................75
Fuel ............................................237
calculating fuel
economy ....................89, 106, 241
cap ...........................................239
capacity ...................................256
choosing the right fuel ...........240
comparisons with EPA fuel
economy estimates .................244
detergent in fuel .....................241
filling your vehicle
with fuel ..................237, 239, 241
filter, specifications ........241, 255
fuel filler door override ..........110
fuel filler door release ............110
fuel pump shut-off switch .....186
improving fuel economy ........241
octane rating ...................240, 259
quality ......................................240
running out of fuel .................241
safety information relating
to automotive fuels ................237
Fuses ..................................187–188
G
Gas cap (see Fuel cap) ............239
Gas mileage
(see Fuel economy) .................241
Gauges .........................................15GAWR (Gross Axle
Weight Rating) ..........................180
definition .................................180
driving with a heavy load ......180
location ....................................180
GVWR (Gross Vehicle
Weight Rating) ..........................180
calculating ...............................180
definition .................................180
driving with a heavy load ......180
location ....................................180
H
Hazard flashers .........................186
Head restraints .........................128
Headlamps ...................................74
aiming ........................................76
autolamp system .......................74
bulb specifications ....................79
daytime running lights .............75
flash to pass ..............................76
high beam .................................75
replacing bulbs .........................80
turning on and off ....................74
HomeLink universal
transceiver (see
Garage door opener) ..................90
Hood ..........................................223
I
Ignition ...............................166, 259
Infant seats
(see Safety seats) .....................158
Inspection/maintenance
(I/M) testing ..............................246
Instrument panel
cleaning ...................................218
cluster ........................................10
lighting up panel and interior .76
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
268

J
Jack ............................................194
positioning ...............................194
storage .....................................194
Jump-starting your vehicle ......199
K
Keyless entry system ...............121
Keys
positions of the ignition .........166
L
Lamps
autolamp system .......................74
bulb replacement
specifications chart ..................79
cargo lamps ...............................76
daytime running light ...............75
fog lamps ...................................75
headlamps .................................74
headlamps, flash to pass ..........76
instrument panel, dimming .....76
interior lamps .....................78–79
replacing bulbs ...................79–82
Lane change indicator
(see Turn signal) ........................78
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........170
speed control ..........................102
Load limits .................................180
GAWR ......................................180
GVWR ......................................180
trailer towing ..........................180
Locks
childproof ................................114
doors ........................................113
Lubricant specifications ...257, 259
Lumbar support, seats .............129M
Message center .........................104
english/metric button .............108
reset button ............................105
warning messages .....................93
Mirrors ...................................85, 98
automatic dimming
rearview mirror .........................98
fold away ...................................99
heated ........................................99
programmable memory ..........120
side view mirrors (power) .......98
Moon roof ..................................103
Motorcraft parts ................241, 255
N
Navigation system .......................24
cd functions ..............................37
destination mode ......................50
map mode .................................41
quick start .................................26
radio functions ..........................30
O
Octane rating ............................240
Oil (see Engine oil) ..................225
P
Parking brake ............................171
Parts (see Motorcraft parts) ....255
Passenger Occupant
Classification Sensor .................134
Pedals (see Power adjustable
foot pedals) .................................99
Power adjustable foot pedals .....99
2003 Town Car(tow)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
269