ENGINE DATA
Engine 4.6L V8 engine 4.6L FFV V8 engine
Cubic inches 281 281
Required fuel 87 octane 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
•4.6L V8 Engine
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
266
IDENTIFYING YOUR VEHICLE
Safety Compliance Certification Label
The National Highway Traffic Safety
Administration Regulations require
that a Safety Compliance
Certification Label be affixed to a
vehicle and prescribe where the
Safety Compliance Certification
Label may be located. The Safety
Compliance Certification Label is
located on the structure (B-Pillar)
by the trailing edge of the driver’s
door or the edge of the driver’s
door.
Vehicle identification number (VIN)
The vehicle identification number is
located on the driver side
instrument panel.
Please note that in the graphic,
XXXX is representative of your
vehicle identification number.
XXXXXXXXXXXXXXXXX
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
267
The Vehicle Identification Number (VIN) contains the following
information:
1. World manufacturer identifier
2. Brake system / Gross Vehicle
Weight Rating (GVWR) / Restraint
System
3. Vehicle line, series, body type
4. Engine type
5. Check digit
6. Model year
7. Assembly plant
8. Production sequence number
TRANSMISSION/TRANSAXLE CODE DESIGNATIONS
You can find a
transmission/transaxle code on the
Safety Compliance Certification
Label. The following table tells you
which transmission or transaxle
each code represents.
Description Code
Four-speed automatic overdrive (4R75E) Q
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
268
A
ABS (see Brakes) .....................179
Air cleaner filter ...............261–262
Air conditioning ..........................35
Air suspension ...........................184
description ..............................184
Airbag supplemental restraint
system ................................120, 129
and child safety seats ............122
description ......................120, 129
disposal ....................................132
driver airbag ....................122, 130
indicator light .................129, 131
operation .........................122, 130
passenger airbag .............122, 130
side airbag ...............................129
Antifreeze
(see Engine coolant) ................239
Anti-lock brake system
(see Brakes) ......................179–180
Anti-theft system ..................94, 98
arming the system ....................99
disarming a triggered
system .......................................99
Audio system
(see Radio) ................18, 20, 23, 28
Automatic transmission
driving an automatic
overdrive .................................187
fluid, adding ............................259
fluid, checking ........................259
fluid, refill capacities ..............263
fluid, specification ..................263
Auxiliary power point .................61
Axle
lubricant specifications ..........263
refill capacities ........................263traction lok ..............................185
B
Battery .......................................237
acid, treating emergencies .....237
jumping a disabled battery ....208
maintenance-free ....................237
replacement, specifications ...262
servicing ..................................237
Belt-Minder.............................115
Booster seats .............................133
Brakes ................................178–179
anti-lock ...........................179–180
anti-lock brake system (ABS)
warning light ...........................180
fluid, checking and adding ....258
fluid, refill capacities ..............263
fluid, specifications .................263
lubricant specifications ..........263
shift interlock ..................185–186
Bulbs ............................................44
C
Capacities for refilling fluids ....263
Cell phone use ..............................7
Child safety restraints ..............132
child safety belts ....................132
Child safety seats ......................136
attaching with tether straps ..140
in front seat ............................137
in rear seat ..............................137
Child safety seats - booster
seats ...........................................133
Cleaning your vehicle
engine compartment ..............225
instrument panel ....................227
interior .....................................227
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Index
271
Exhaust fumes ..........................176
F
Fail safe cooling ........................244
Flexible Fuel Vehicle (FFV) ....245
Floor mats ...................................82
Fluid capacities .........................263
Foglamps .....................................39
Fuel ............................................245
calculating fuel
economy ......................56, 76, 252
cap ...........................................248
capacity ...................................263
choosing the right fuel ...........249
comparisons with EPA fuel
economy estimates .................255
detergent in fuel .....................250
filling your vehicle
with fuel ..................245, 248, 252
filter, specifications ........245, 262
fuel pump shut-off switch .....193
improving fuel economy ........252
octane rating ...................250, 266
quality ..............................250–251
running out of fuel .................251
safety information relating to
automotive fuels .....................245
Fuel - flex fuel vehicle
(FFV) .........................245, 249–250
Fuses ..................................194–195
G
Gas cap (see Fuel cap) ............248
Gas mileage
(see Fuel economy) .................252
Gauges .........................................15
H
Hazard flashers .........................192Head restraints .........................100
Headlamps ...................................38
aiming ........................................40
autolamp system .......................38
bulb specifications ....................44
daytime running lights .............39
flash to pass ..............................39
high beam .................................39
replacing bulbs .........................45
turning on and off ....................38
Heating
heating and air conditioning
system .................................34–35
Homelink wireless control
system ..........................................70
Hood ..........................................231
I
Ignition ...............................173, 266
Illuminated visor mirror .............51
Infant seats
(see Safety seats) .....................136
Inspection/maintenance (I/M)
testing ........................................257
Instrument panel
cleaning ...................................227
cluster ........................................10
lighting up panel
and interior ...............................40
J
Jump-starting your vehicle ......208
K
Keyless entry system .................92
autolock .....................................85
keypad .......................................92
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Index
273
Remote entry system ...........88, 92
illuminated entry ......................91
locking/unlocking doors ...........88
opening the trunk .....................89
panic alarm ...............................89
replacement/additional
transmitters ...............................90
replacing the batteries .............89
Roadside assistance ..................191
S
Safety Belt Maintenance ..........114
Safety belts (see Safety
restraints) ..................105, 109–114
Safety defects,
reporting ............................221–222
Safety restraints ........105, 109–114
Belt-Minder...........................115
extension assembly ................113
for adults .........................110–113
for children .............................132
lap belt ....................................111
Occupant Classification
Sensor ......................................107
safety belt maintenance .........114
warning light and chime ........115
Safety seats for children ..........136
Safety Compliance
Certification Label ....................267
Seats ..........................................100
child safety seats ....................136
front seats ...............................100
SecuriLock passive anti-theft
system ....................................94, 97
Servicing your vehicle ..............230
Setting the clock
AM/FM single CD .....................22
AM/FM stereo ...........................19AM/FM/In-dash 6 CD ................31
AM/FM/Tape/CD .......................26
Spark plugs,
specifications .....................262, 266
Specification chart,
lubricants ...................................263
Speed control ..............................65
Starting a flex fuel vehicle .......175
Starting your vehicle ........173–175
jump starting ..........................208
Steering
speed sensitive .......................184
Steering wheel
controls ......................................68
tilting .........................................51
T
Tilt steering wheel ......................51
Tire Pressure Monitoring
System (TPMS)
Tires, Wheels and Loading ....158
Tires ...................................143–144
alignment ................................151
care ..........................................147
changing ..................................205
checking the pressure ............147
inflating ...................................145
label .........................................157
replacing ..................................149
rotating ....................................151
safety practices .......................150
sidewall information ...............152
snow tires and chains ............163
spare tire .........................202–203
terminology .............................144
tire grades ...............................144
treadwear ........................143, 148
Towing .......................................169
2008 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Index
275