Spark plug Mercury Grand Marquis 2005 Owner's Manuals

Note:Failure to use the correct air filter element may result in severe
engine damage. The customer warranty may be voided for any damage to
the engine if the correct air filter element is not used.
MOTORCRAFT PART NUMBERS
Component 4.6L SOHC V8 engine
Air filter element FA-1668
Fuel filter FG-986B
Battery-standard BXT-65–650
Battery-heavy duty BXT-65–750
Oil filter FL-820-S
PCV valve
1
Spark plugs2
1
The PCV valve is a critical emission component. It is one of the items
listed inscheduled maintenance informationand is essential to the
life and performance of your vehicle and to its emissions system.
For PCV valve replacement, see your dealer or a qualified service
technician. Refer toscheduled maintenance informationfor the
appropriate intervals for changing the PCV valve.
Replace the PCV valve with one that meets Ford material and
design specifications for your vehicle, such as a Motorcraft or
equivalent replacement part. The customer warranty may be void
for any damage to the emissions system if such a PCV valve is not
used.
2For spark plug replacement, see your dealer or a qualified service
technician. Refer toscheduled maintenance informationfor the
appropriate intervals for changing the spark plugs.
Replace the spark plugs with ones that meet Ford material and
design specifications for your vehicle, such as Motorcraft or
equivalent replacement parts. The customer warranty may be
void for any damage to the engine if such spark plugs are not
used.
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
240

ENGINE DATA
Engine 4.6L V8 engine
Cubic inches 281
Required fuel 87 octane
Firing order 1-3-7-2-6-5-4-8
Ignition system Coil on plug
Spark plug gap 0.052–0.056 inch (1.32–1.42mm)
Compression ratio 9.4:1
VEHICLE DIMENSIONS (AT CURB MASS)
Vehicle dimensions Inches (mm)
(1) Overall length 211.9 (5382)
(2) Overall width 78.3 (1990)
(3) Overall height 58.4 (1483)
(4) Wheelbase 114.6 (2911)
(5) Track - Front 63.4 (1610)
(5) Track - Rear 65.6 (1666)
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
244

locking/unlocking doors ...........81
opening the trunk .....................82
replacement/additional
transmitters ...............................83
Roadside assistance ..................180
S
Safety Belt Maintenance ..........110
Safety belts (see Safety
restraints) ..............96, 99, 101–103
Safety defects, reporting ..........204
Safety restraints ....96, 99, 101–103
belt minder .............................105
extension assembly ................109
for adults .........................101–103
for children .............................121
lap belt ....................................104
Occupant Classification
Sensor ........................................97
safety belt maintenance .........110
warning light and chime 104–105
Safety seats for children ..........124
Safety Compliance
Certification Label ....................245
Seat belts (see Safety
restraints) ....................................96
Seats ............................................91
child safety seats ....................124
front seats .................................91
SecuriLock passive anti-theft
system ..........................................90
Servicing your vehicle ..............211
Setting the clock
AM/FM single CD .....................22
AM/FM/In-dash 6 CD ................31
AM/FM/Tape/CD .......................26Spark plugs,
specifications .....................240, 244
Specification chart,
lubricants ...........................242, 244
Speed control ..............................63
Starting your vehicle .......163–164,
166
jump starting ..........................190
Steering
speed sensitive .......................172
Steering wheel
controls ......................................66
tilting .........................................50
T
Tilt steering wheel ......................50
Tires ...........................132–133, 137
alignment ................................150
care ..........................................149
changing ..........................137, 139
checking the pressure ............135
inspecting and inflating .........134
label .........................................148
replacing ..................................137
rotating ....................................151
safety practices .......................150
sidewall information ...............143
snow tires and chains ............153
spare tire .........................137–138
terminology .............................133
tire grades ...............................133
treadwear ........................132, 149
Towing .......................................159
recreational towing .................162
trailer towing ..........................159
wrecker ....................................195
Traction control ........................170
Traction-lok rear axle ...............178
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Index
254