What you should know about fail-safe cooling
If the engine coolant supply is depleted, this feature allows the vehicle to
be driven temporarily before incremental component damage is incurred.
The“fail-safe”distance depends on ambient temperatures, vehicle load
and terrain.
How fail-safe cooling works
If the engine begins to overheat:
•The engine coolant temperature
gauge will move to the H (hot)
area.
•The
symbol will illuminate.
•A tone will sound 3 times.
•TheService engine soon
indicator light will illuminate.
If the engine reaches a preset over-temperature condition, the engine
will automatically switch to alternating cylinder operation. Each disabled
cylinder acts as an air pump and cools the engine.
When this occurs the vehicle will still operate. However:
•The engine power will be limited.
•The air conditioning system will be disabled.
Continued operation will increase the engine temperature:
•The
symbol will begin to flash.
•A tone will sound 5 times.
•The engine will completely shut down, causing steering and braking
effort to increase.
Once the engine temperature cools, the engine can be re-started. Take
your vehicle to a service facility as soon as possible to minimize engine
damage.
When fail-safe mode is activated
You have limited engine power when in the fail-safe mode, so drive the
vehicle with caution. The vehicle will not be able to maintain high-speed
operation and the engine will run rough. Remember that the engine is
capable of completely shutting down automatically to prevent engine
damage, therefore:
1. Pull off the road as soon as safely possible and turn off the engine.
REVIEW COPY
2004 Town Car(tow), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Maintenance and Specifications
257
F
Fail safe cooling ........................257
Floor mats .................................129
Fluid capacities .........................287
Fuel ............................................258
calculating fuel
economy ..................107, 124, 262
cap ...........................................260
capacity ...................................287
choosing the right fuel ...........261
comparisons with EPA fuel
economy estimates .................265
detergent in fuel .....................262
filling your vehicle with
fuel ...........................258, 260, 262
filter, specifications ........262, 286
fuel filler door override ..........128
fuel filler door release ............128
fuel pump shut-off switch .....207
improving fuel economy ........262
octane rating ...................261, 290
quality ......................................261
running out of fuel .................262
safety information relating to
automotive fuels .....................258
Fuses ..................................208–209
G
Gas cap (see Fuel cap) ............260
Gas mileage
(see Fuel economy) .................262
Gauges .........................................15
H
Hazard flashers .........................207
Head restraints .........................146
Headlamps ...................................92aiming ........................................94
autolamp system .......................92
bulb specifications ....................96
daytime running lights .............93
flash to pass ..............................93
high beam .................................93
replacing bulbs .........................98
turning on and off ....................92
HomeLink universal
transceiver (see Garage door
opener) ......................................108
Hood ..........................................244
I
Ignition ...............................184, 290
Infant seats
(see Safety seats) .....................175
Inspection/maintenance (I/M)
testing ........................................267
Instrument panel
cleaning ...................................240
cluster ........................................10
lighting up panel and
interior .......................................94
J
Jack ............................................216
positioning ...............................216
storage .....................................216
Jump-starting your vehicle ......222
K
Keyless entry system ...............139
Keys
positions of the ignition .........184
REVIEW COPY
2004 Town Car(tow), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Index
300
