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If the service engine soonindicator is on or the bulb does not
work, the vehicle may need to be serviced. Refer toOn-board
diagnostics (OBD-II)in this chapter.
If the vehicle’s engine or transmission has just been serviced, or the
battery has recently run down or been replaced, the OBD-II system may
indicate that the vehicle is not ready for I/M testing. To determine if the
vehicle is ready for I/M testing, turn the ignition key to the on position
for 15 seconds without cranking the engine. If the service engine
soon
indicator blinks eight times, it means that the vehicle is not
ready for I/M testing; if the service engine soon
indicator stays on
solid, it means that the vehicle is ready for I/M testing.
The OBD-II system is designed to check the emission control system
during normal driving. A complete check may take several days. If the
vehicle is not ready for I/M testing, the following driving cycle consisting
of mixed city and highway driving may be performed:
15 minutes of steady driving on an expressway/highway followed by
20 minutes of stop-and-go driving with at least four 30-second 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. If
the vehicle is still not ready for I/M testing, the above driving cycle will
have to be repeated.
POWER STEERING FLUID
Check the power steering fluid. Refer toscheduled maintenance
information.
1. Start the engine and let it run until it reaches normal operating
temperature (the engine coolant temperature gauge indicator will be
near the center of the normal area between H and C).
2. While the engine idles, turn the steering wheel left and right several
times.
3. Turn the engine off.
Maintenance and Specifications
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ENGINE DATA
Engine 4.6L V8 engine 4.6L FFV V8 engine
Cubic inches 281 281
Required fuel Minimum 87 octane Minimum 87 octane or
ethanol (E-85)
Firing order 1-3-7-2-6-5-4-8 1-3-7-2-6-5-4-8
Ignition system Coil on plug Coil on plug
Spark plug gap 0.052–0.056 inch
(1.32–1.42 mm)0.041–0.047 inch
(1.04–1.20 mm)
Compression ratio 9.4:1 9.4:1
Engine drivebelt routing
Maintenance and Specifications
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Flexible Fuel Vehicle (FFV) ....248
Floor mats ...................................70
Fluid capacities .........................268
Fuel ............................................248
calculating fuel
economy ............................22, 255
cap ...........................................251
capacity ...................................268
choosing the right fuel ...........252
detergent in fuel .....................253
filling your vehicle with
fuel ...........................248, 251, 255
filter, specifications ........248, 267
fuel filler door override ............72
fuel filler door release ..............71
fuel pump shut-off switch .....195
improving fuel economy ........255
octane rating ...................253, 271
quality ......................................253
running out of fuel .................254
safety information relating to
automotive fuels .....................248
Fuel - flex fuel vehicle
(FFV) .........................248, 252–253
Fuses ..................................195–196
G
Garage door opener ....................63
Gas cap (see Fuel cap) ............251
Gas mileage
(see Fuel economy) .................255
Gauges .........................................16
H
Hazard flashers .........................194
Headlamps ...................................42
aiming ........................................44autolamp system .......................42
bulb specifications ....................47
daytime running lights .............43
flash to pass ..............................43
high beam .................................43
replacing bulbs .........................49
turning on and off ....................42
Hood ..........................................234
I
Ignition ...............................177, 271
Illuminated visor mirror .............55
Infant seats
(see Safety seats) .....................132
Inspection/maintenance (I/M)
testing ........................................259
Instrument panel
cleaning ...................................228
cluster ........................................12
lighting up panel and
interior .......................................44
J
Jack ............................................202
positioning ...............................202
storage .....................................202
Jump-starting your vehicle ......211
K
Keyless entry system
keypad .......................................83
locking and unlocking doors ....84
programming entry code .........83
Keys .......................................73, 87
positions of the ignition .........177
Index
303
2011 Town Car(tow)
Owners Guide, 2nd Printing
USA(fus)