octane Mercury Grand Marquis 2002 Owner's Manuals

Check engine
Illuminates briefly to ensure the
system is functional. If it comes on
after the engine is started, one of
the engine's emission control
systems may be malfunctioning. The
light may illuminate without a driveability concern being noted and will
not require towing.
Light turns on solid:
Temporary malfunctions may cause your light to illuminate. Examples
are:
1. The vehicle has run out of fuel.
2. Poor fuel quality or water in the fuel.
3. The fuel cap may not have been properly installed and securely
tightened.
These temporary malfunctions can be corrected by filling the fuel tank
with high quality fuel of the recommended octane and/or properly
installing and securely tightening the fuel cap. After three driving cycles
without these or any other temporary malfunctions present, the light
should turn off. (A driving cycle consists of a cold engine startup
followed by mixed city/highway driving.) No additional vehicle service is
required.
If the light remains on, have your vehicle serviced at the first available
opportunity.
Light is blinking:
Engine misfire is occurring which could damage your catalytic converter.
You should drive in a moderate fashion (avoid heavy acceleration and
deceleration) and have your vehicle serviced at the first available
opportunity.
Under engine misfire conditions, excessive exhaust temperatures
could damage the catalytic converter, the fuel system, interior
floor coverings or other vehicle components, possibly causing a fire.
CHECK
ENGINE
Instrument Cluster
11

The fuel system may be under pressure. If the fuel filler cap is
venting vapor or if you hear a hissing sound, wait until it stops
before completely removing the fuel filler cap. Otherwise, fuel may
spray out and injure you or others.
If you do not use the proper fuel filler cap, excessive pressure or
vacuum in the fuel tank may damage the fuel system or cause
the fuel cap to disengage in a collision, which may result in possible
personal injury.
Choosing the right fuel
Use only UNLEADED FUEL. The use of leaded fuel is prohibited by law
and could damage your vehicle.
Do not use fuel containing methanol. It can damage critical fuel system
components.
Your vehicle was not designed to use fuel or fuel additives with metallic
compounds, including manganese-based compounds containing MMT.
Repairs to correct the effects of using a fuel for which your vehicle was
not designed may not be covered by your warranty.
Octane recommendations
Your vehicle is designed to use
ªRegularº unleaded gasoline with
pump (R+M)/2 octane rating of 87.
We do not recommend the use of
gasolines labeled as ªRegularº that
are sold with octane ratings of 86 or lower in high altitude areas.
Do not be concerned if your engine sometimes knocks lightly. However, if
it knocks heavily under most driving conditions while you are using fuel
with the recommended octane rating, see your dealer or a qualified
service technician to prevent any engine damage.
Fuel quality
If you are experiencing starting, rough idle or hesitation driveability
problems during a cold start, try a different brand of ªRegularº unleaded
gasoline. ªPremiumº unleaded gasoline is not recommended (particularly
in the United States) because it may cause these problems to become
87(R+M)/2 METHOD
Maintenance and Specifications
213

more pronounced. If the problems persist, see your dealer or a qualified
service technician.
It should not be necessary to add any aftermarket products to your fuel
tank if you continue to use high quality fuel of the recommended octane
rating. Aftermarket products could cause damage to the fuel system.
Repairs to correct the effects of using an aftermarket product in your
fuel may not be covered by your warranty.
Many of the world's automakers
issued the World-wide Fuel Charter
that recommends gasoline
specifications to provide improved
performance and emission control
system protection for your vehicle.
Gasolines that meet the World-wide
Fuel Charter should be used when
available. Ask your fuel supplier
about gasolines that meet the
World-wide Fuel Charter. In Canada,
look for fuels that display theAuto Makers' Choiceylogo.
Cleaner air
Ford endorses the use of reformulated ªcleaner-burningº gasolines to
improve air quality.
Running out of fuel
Avoid running out of fuel because this situation may have an adverse
affect on powertrain components.
If you have run out of fuel:
²You may need to cycle the ignition from OFF to ON several times after
refueling, to allow the fuel system to pump the fuel from the tank to
the engine.
²Your ªCheck Engineº indicator may come on. For more information on
the ªCheck Engineº indicator, refer to theInstrument Cluster
chapter.
Fuel Filter
For fuel filter replacement, see your dealer or a qualified service
technician. Refer to the scheduled maintenance guide for the appropriate
intervals for changing the fuel filter.
Maintenance and Specifications
214

Replace the fuel filter with an authorized Motorcraft part. The
customer warranty may be void for any damage to the fuel system
if an authorized Motorcraft fuel filter is not used.
ESSENTIALS OF GOOD FUEL ECONOMY
Measuring techniques
Your best source of information about actual fuel economy is you, the
driver. You must gather information as accurately and consistently as
possible. Fuel expense, frequency of fillups or fuel gauge readings are
NOT accurate as a measure of fuel economy. We do not recommend
taking fuel economy measurements during the first 1 600 km (1 000 miles)
of driving (engine break-in period). You will get a more accurate
measurement after 3 000 km±5 000 km (2 000 miles-3 000 miles).
Filling the tank
The advertised fuel capacity of the fuel tank on your vehicle is equal to
the rated refill capacity of the fuel tank as listed in theRefill capacities
section of this chapter.
The advertised capacity is the amount of the indicated capacity and the
empty reserve combined. Indicated capacity is the difference in the
amount of fuel in a full tank and a tank when the fuel gauge indicates
empty. Empty reserve is the small amount of fuel remaining in the fuel
tank after the fuel gauge indicates empty.
The amount of usable fuel in the empty reserve varies and should
not be relied upon to increase driving range. When refueling your
vehicle after the fuel gauge indicates empty, you might not be
able to refuel the full amount of the advertised capacity of the
fuel tank due to the empty reserve still present in the tank.
For consistent results when filling the fuel tank:
²Turn the engine/ignition switch to the off position prior to refueling,
an error in the reading will result if the engine is left running.
²Use the same filling rate setting (low Ð medium Ð high) each time
the tank is filled.
²Allow no more than 2 automatic click-offs when filling.
²Always use fuel with the recommended octane rating.
²Use a known quality gasoline, preferably a national brand.
²Use the same side of the same pump and have the vehicle facing the
same direction each time you fill up.
Maintenance and Specifications
215

Item Ford part
nameFord part
numberFord
specification
Rear Axle
Lubricant
2Motorcraft SAE
80W-90
Premium Rear
Axle LubricantXY-80W90-QL WSP-M2C197-A
Windshield
washer fluidUltra-clear
Windshield
Washer
ConcentrateC9AZ-19550-AC ESR-M17P5-A
1Use only brake fluids certified to meet Ford specifications. DOT 3 fluid
is recommended. However, if DOT 3 is not available, DOT 4 fluid can be
used.
2Add 118 ml (4 oz.) of Additive Friction Modifier C8AZ-19B546-A or
equivalent meeting Ford specification EST-M2C118-A for complete refill
of Traction-Lok rear axles.
3Ensure the correct automatic transmission fluid is used. Transmission
fluid requirements are indicated on the dipstick or on the dipstick
handle. MERCONtand MERCONtV are not interchangeable. DO NOT
mix MERCONtand MERCONtV. Refer to your scheduled maintenance
guide to determine the correct service interval.
ENGINE DATA
Engine 4.6L V8 engine
Cubic inches 281
Required fuel 87 octane
Firing order 1-3-7-2-6-5-4-8
Spark plug gap 1.3-1.4 mm (0.052-0.056 inch)
Ignition system Coil on plug
Compression ratio 9.4:1
Maintenance and Specifications
233

Engine oil ..................................197
change oil soon warning,
message center .......................197
checking and adding ..............197
dipstick ....................................197
filter, specifications ........199, 230
recommendations ...................199
refill capacities ........................230
specifications ..................232±233
Exhaust fumes ..........................142
F
Fail safe cooling ........................207
Floor mats ...................................91
Fluid capacities .........................230
Fuel ............................................210
calculating fuel economy .......215
cap .....................................12, 212
capacity ...................................230
choosing the right fuel ...........213
comparisons with EPA fuel
economy estimates .................218
detergent in fuel .....................214
filling your vehicle
with fuel ..................210, 212, 215
filter, specifications ........214, 230
fuel filler door override ............90
fuel filler door release ..............90
fuel pump shut-off switch .....160
gauge .........................................20
improving fuel economy ........215
low fuel warning light ..............14
octane rating ...........213, 233±234
quality ......................................213
running out of fuel .................214
safety information relating to
automotive fuels .....................210
Fuses ..................................161±162G
Garage door opener ....................80
Gas cap (see Fuel cap) ......12, 212
Gas mileage (see Fuel
economy) ...................................215
Gauges .........................................17
battery voltage gauge ...............19
engine coolant temperature
gauge .........................................18
engine oil pressure gauge ........19
fuel gauge ..................................20
odometer ...................................21
speedometer .............................21
trip odometer ............................22
GAWR (Gross Axle Weight
Rating) .......................................153
definition .................................153
driving with a heavy load ......153
location ....................................153
GVWR (Gross Vehicle Weight
Rating) .......................................153
calculating ...............................153
definition .................................153
driving with a heavy load ......153
location ....................................153
H
Hazard flashers .........................159
Head restraints .........................106
Headlamps ...................................59
aiming ........................................61
autolamp system .......................59
bulb specifications ....................62
daytime running lights .............60
flash to pass ..............................60
high beam ...........................15, 60
replacing bulbs .........................63
Index
242

Lubricant specifications ...232±233
Lumbar support, seats .............108
M
Message center ...........................84
reset button ..............................84
select button .............................85
Mirrors
automatic dimming rearview
mirror ........................................72
heated ........................................72
side view mirrors (power) .......72
Motorcraft parts ................214, 230
O
Octane rating ............................213
Odometer .....................................21
Oil (see Engine oil) ..................197
Overdrive .............................89, 150
P
Panic alarm feature, remote
entry system ................................96
Parking brake ............................144
Parts (see Motorcraft parts) ....230
Passenger Occupant
Classification Sensor .................112
Pedals (see Power adjustable
foot pedals) .................................74
Power distribution box
(see Fuses) ...............................164
Power door locks ..................92, 99
Power steering ..................146±147
fluid, checking and adding ....220fluid, refill capacity ................230
fluid, specifications .........232±233
R
Rear window defroster ...............58
Relays ................................161, 166
Remote entry system ...........94, 96
illuminated entry ......................98
locking/unlocking doors .....92, 95
opening the trunk .....................96
panic alarm ...............................96
replacement/additional
transmitters ...............................98
replacing the batteries .............97
S
Safety belts (see Safety
restraints) ............16, 110, 114±118
Safety defects, reporting ..........186
Safety restraints ........110, 114±118
belt minder .............................120
cleaning the safety
belts .................................124, 192
extension assembly ................124
for adults .........................115±117
for children .............................130
lap belt ....................................118
Occupant Classification
Sensor ......................................112
warning light and
chime ...................13, 16, 119±120
Safety seats for children ..........131
Seat belts
(see Safety restraints) .............110
Seats ..........................................106
child safety seats ....................131
cleaning ...................................191
Index
244