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 display in the message center.
•The message center will display Coolant over temperature.
•A chime will sound.
•TheService engine soonindicator 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 and 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 an authorized dealer 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.
2. Arrange for the vehicle to be taken to an authorized dealer.
3. If this is not possible, wait a short period for the engine to cool.
4. Check the coolant level and replenish if low.
2007 Town Car(tow)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
290
A
Accessory delay ........................112
Air cleaner filter ...............306–307
Air suspension ...........................231
description ..............................231
Airbag supplemental restraint
system ................................175, 184
and child safety seats ............177
description ......................175, 184
disposal ....................................186
driver airbag ....................177, 185
indicator light .................184, 186
operation .........................177, 185
passenger airbag .............177, 185
side airbag ...............................184
Antifreeze
(see Engine coolant) ................285
Anti-lock brake system
(see Brakes) ..............................227
Anti-theft system ..............149, 153
arming the system ..................153
disarming a triggered system 154
Audio system
(see Radio) ......................15, 18, 24
Automatic transmission
driving an automatic
overdrive .................................233
fluid, adding ............................304
fluid, checking ........................304
fluid, refill capacities ..............309
fluid, specification ..................309
Auxiliary power point ...............110
Axle
lubricant specifications ..........309
refill capacities ........................309
traction lok ..............................231
B
Battery .......................................283acid, treating emergencies .....283
jumping a disabled battery ....255
maintenance-free ....................283
replacement, specifications ...307
servicing ..................................283
BeltMinder...............................171
Brakes ........................................227
anti-lock ...................................227
anti-lock brake system (ABS)
warning light ...........................227
fluid, checking and adding ....304
fluid, specifications .................309
lubricant specifications ..........309
shift interlock ..........................231
Bulbs ..........................................101
C
Capacities for refilling fluids ....309
Cell phone use ..............................7
Changing a tire .........................248
Child safety restraints ..............187
child safety belts ....................187
Child safety seats ......................191
attaching with tether straps ..195
in front seat ............................192
in rear seat ..............................192
Cleaning your vehicle
engine compartment ..............271
instrument panel ....................272
interior .....................................273
plastic parts ............................271
washing ....................................269
waxing .....................................270
wheels ......................................270
wiper blades ............................272
Climate control (see Air
conditioning or Heating) ............93
Clock ..........................................110
2007 Town Car(tow)
Owners Guide (post-2002-fmt)
USA(fus)
Index
317
