2006 Mercury Grand Marquis cooling

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.
•TheCheck Engineindicator light will illuminate.
•The
symbol 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 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.
Never remove the coolant reservoir cap while the engine is
running or hot.
2006 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
235

wiper blades ............................217
Climate control (see Air
conditioning or Heating) ............37
Clock adjust
6-CD in dash .............................33
AM/FM .......................................18
AM/FM/Cassette ........................19
AM/FM/CD .................................23
AM/FM/Tape/CD .......................28
Compass, electronic
set zone adjustment .................55
Console ........................................53
overhead ..............................53, 55
Controls
power seat ...............................101
steering column ........................69
Coolant
checking and adding ..............230
refill capacities ................234, 252
specifications ..................254–255
Cruise control
(see Speed control) ....................66
Cupholder(s) .............................104
Customer Assistance ................184
Ford Extended Service
Plan ..........................................211
Getting assistance outside the
U.S. and Canada .....................212
Getting roadside assistance ...184
Getting the service you
need .........................................207
Ordering additional owner’s
literature .................................212
Utilizing the
Mediation/Arbitration
Program ...................................210D
Daytime running lamps
(see Lamps) ................................41
Defrost
rear window ..............................39
Dipstick
automatic transmission
fluid ..........................................248
engine oil .................................225
Doors
lubricant specifications ..........254
Driving under special
conditions ..................................183
through water .........................183
E
Electronic message center .........74
Emergencies, roadside
jump-starting ..........................201
Emission control system ..........245
Engine ................................255–256
cleaning ...................................216
coolant .....................................230
fail-safe cooling .......................235
idle speed control ...................228
lubrication
specifications ..................254–255
refill capacities ........................252
service points ..........................223
starting after a collision .........186
Engine block heater .................171
Engine oil ..................................225
change oil soon warning,
message center .......................225
checking and adding ..............225
dipstick ....................................225
filter, specifications ........227, 251
2006 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Index
262

recommendations ...................227
refill capacities ........................252
specifications ..................254–255
Exhaust fumes ..........................171
F
Fail safe cooling ........................235
Flexible Fuel Vehicle (FFV) ....236
Floor mats ...................................82
Fluid capacities .........................252
Foglamps .....................................42
Fuel ............................................236
calculating fuel
economy ......................57, 76, 241
capacity ...................................252
choosing the right fuel ...........239
comparisons with EPA fuel
economy estimates .................244
detergent in fuel .....................241
filling your vehicle with
fuel ...................................236, 242
filter, specifications ........236, 251
fuel pump shut-off switch .....186
improving fuel economy ........241
octane rating ...........240, 255–256
quality ......................................240
running out of fuel .................241
safety information relating to
automotive fuels .....................236
Fuel - flex fuel
vehicle (FFV) ............236, 239–240
Fuses ..................................187–188
G
Gas mileage
(see Fuel economy) .................241
Gauges .........................................14H
Hazard flashers .........................185
Head restraints ...........................99
Headlamps ...................................40
aiming ........................................42
autolamp system .......................40
bulb specifications ....................46
daytime running lights .............41
flash to pass ..............................41
high beam .................................41
replacing bulbs .........................47
turning on and off ....................40
Heating
heating and air conditioning
system .................................36–37
Homelink wireless control
system ..........................................70
Hood ..........................................222
I
Ignition .......................168, 255–256
Illuminated visor mirror .............53
Infant seats
(see Safety seats) .....................135
Inspection/maintenance (I/M)
testing ........................................246
Instrument panel
cleaning ...................................217
cluster ........................................10
lighting up panel and
interior .......................................42
J
Jack ............................................195
positioning ...............................195
storage .....................................195
2006 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Index
263