suspension Mercury Grand Marquis 2007 Owner's Manuals

Seating and Safety Restraints 99
Seating 99
Safety restraints 104
Airbags 118
Child restraints 131
Tires, Wheels and Loading 143
Tire information 143
Vehicle loading 158
Trailer towing 164
Recreational towing 167
Driving 168
Starting 168
Brakes 172
Traction Control™ 175
Air suspension 177
Transmission operation 178
Roadside Emergencies 184
Getting roadside assistance 184
Hazard flasher switch 185
Fuel pump shut-off switch 186
Fuses and relays 187
Changing tires 194
Lug nut torque 200
Jump starting 201
Wrecker towing 206
Customer Assistance 207
Reporting safety defects (U.S. only) 213
Reporting safety defects (Canada only) 214
Cleaning 215
Table of Contents
2
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)

Charging system:Illuminates when
the battery is not charging properly.
Engine oil pressure:Illuminates
when the oil pressure falls below the
normal range. Check the oil level
and add oil if needed. Refer to
Engine oilin theMaintenance and Specificationschapter.
Engine coolant temperature
(if equipped):Illuminates when
the engine coolant temperature is
high. Stop the vehicle as soon as possible, switch off the engine and let
cool. Refer toEngine coolantin theMaintenance and Specifications
chapter.
Never remove the coolant reservoir cap while the engine is
running or hot.
Traction controlAdvanceTrac
active (if equipped):Illuminates
when the Traction controlsystem
is active. It will be lit for a minimum
of four seconds or for the duration
of the Traction Controlevent,
refer to theDrivingchapter for more information.
Severity indicator (if equipped):
Displays the indicated severity color
when any of the following warning
conditions has occurred:
•Red: Low Oil Pressure, Charge
System, Engine Coolant Over Temperature, Door Ajar
•Amber: Low Fuel
Refer toMessage Centerin theDriver Controlschapter.
Air suspension (if equipped):
Illuminates when the air suspension
is turned OFF, the load limit is
exceeded or the air suspension
system requires servicing.
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Instrument Cluster
13

The sequence of the system check report and how it appears in the
message center is as follows:
1. OIL LIFE
— PRESS RESET IF NEW OIL
2. WASHER FLUID
3. AIR SUSPENSION
4. RECONFIGURABLE TELLTALES
—OK
— FAILED RED
— FAILED AMBER
Display Type
1. Select this function from the
SETUP menu.
2. Press the SELECT control to
change the display.
Text Size
1. Select this function from the
SETUP menu.
2. Press the SELECT control to
change text size.
Units (English/Metric)
1. Select this function from the
SETUP menu for the current units
to be displayed.
2. Press the SELECT control to
change from English to Metric.
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
78

•They will not reappear until an ignition OFF-ON cycle has been
completed.
This acts as a reminder that these warning conditions still exist within
the vehicle.
Warning display Status
Door Ajar Warning cannot be reset
Coolant over temperature Warning returns after 10 minutes
Powertrain malfunction
Check fuel cap
Check air suspension
Low fuel
Overdrive ON/OFF Warning returns after the ignition key
is turned from OFF to ON.
Trunk ajar
Check compass module
Low washer fluid
Change engine oil
DOOR AJAR.Displayed when a door is not completely closed.
POWERTRAIN MALFUNCTION.Displayed when the powertrain is not
operating properly. If the warning stays on or continues to come on,
contact your authorized dealer as soon as possible.
COOLANT OVER TEMPERATURE.Displayed when the engine
coolant is overheating. Stop the vehicle as soon as safely possible, turn
off the engine and let it cool. Check the coolant and coolant level. Refer
toEngine coolantin theMaintenance and Specificationschapter. If
the warning stays on or continues to come on, contact your authorized
dealer as soon as possible.
Never remove the coolant reservoir cap while the engine is
running or hot.
CHECK FUEL CAP.Displayed when the fuel filler cap is not properly
installed. Check the fuel filler cap for proper installation. Refer toFuel
filler capin theMaintenance and Specificationschapter.
CHECK AIR SUSPENSION.Displayed when the air suspension system
is not operating properly. If this message is displayed while driving, pull
off the road as soon as safely possible. For more information, refer toAir
suspensionin theDrivingchapter.
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Driver Controls
80

U.S. DOT Tire Identification Number (TIN)
Both U.S. and Canada Federal regulations require tire manufacturers to
place standardized information on the sidewall of all tires. This
information identifies and describes the fundamental characteristics of
the tire and also provides a U.S. DOT Tire Identification Number for
safety standard certification and in case of a recall.
This begins with the letters “DOT” and indicates that the tire meets all
federal standards. The next two numbers or letters are the plant code
designating where it was manufactured, the next two are the tire size
code and the last four numbers represent the week and year the tire was
built. For example, the numbers 317 mean the 31st week of 1997. After
2000 the numbers go to four digits. For example, 2501 means the 25th
week of 2001. The numbers in between are identification codes used for
traceability. This information is used to contact customers if a tire defect
requires a recall.
Tire Replacement Requirements
Your vehicle is equipped with tires designed to provide a safe ride and
handling capability.
Only use replacement tires and wheels that are the same size,
load index, speed rating and type (such as P-metric versus
LT-metric or all-season versus all-terrain) as those originally provided
by Ford. The recommended tire and wheel size may be found on either
the Safety Compliance Certification Label or the Tire Label which is
located on the B-Pillar or edge of the driver’s door. If this information
is not found on these labels then you should consult your Ford Dealer.
Use of any tire or wheel not recommended by Ford can affect the
safety and performance of your vehicle, which could result in an
increased risk of loss of vehicle control, vehicle rollover, personal injury
and death. Additionally the use of non-recommended tires and wheels
could cause steering, suspension, axle or transfer case/power transfer
unit failure. If you have questions regarding tire replacement, see an
authorized dealer.
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
149

Highway hazards
No matter how carefully you drive there’s always the possibility that you
may eventually have a flat tire on the highway. Drive slowly to the
closest safe area out of traffic. This may further damage the flat tire, but
your safety is more important.
If you feel a sudden vibration or ride disturbance while driving, or you
suspect your tire or vehicle has been damaged, immediately reduce your
speed. Drive with caution until you can safely pull off the road. Stop and
inspect the tires for damage. If a tire is under-inflated or damaged,
deflate it, remove wheel and replace it with your spare tire and wheel. If
you cannot detect a cause, have the vehicle towed to the nearest repair
facility or tire dealer to have the vehicle inspected.
Tire and wheel alignment
A bad jolt from hitting a curb or pothole can cause the front end of your
vehicle to become misaligned or cause damage to your tires. If your
vehicle seems to pull to one side when you’re driving, the wheels may be
out of alignment. Have an authorized dealer check the wheel alignment
periodically.
Wheel misalignment in the front or the rear can cause uneven and rapid
treadwear of your tires and should be corrected by an authorized dealer.
Front wheel drive (FWD) vehicles and those with an independent rear
suspension (if equipped) may require alignment of all four wheels.
The tires should also be balanced periodically. An unbalanced tire and
wheel assembly may result in irregular tire wear.
Tire rotation
Rotating your tires at the recommended interval (as indicated in the
scheduled maintenance informationthat comes with your vehicle) will
help your tires wear more evenly, providing better tire performance and
longer tire life. Unless otherwise specified, rotate the tires approximately
every 5,000 miles (8,000 km).
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
151

SNOW TIRES AND CHAINS
Snow tires must be the same size and grade as the tires you
currently have on your vehicle.
The tires on your vehicle have all weather treads to provide traction in
rain and snow. However, in some climates, you may need to use snow
tires and chains. If you need to use chains, it is recommended that steel
wheels (of the same size and specifications) be used, as chains may chip
aluminum wheels.
Follow these guidelines when using snow tires and chains:
•Either cable type chains or SAE class S chains can be used.
•Install chains securely, verifying that the chains do not touch any
wiring, brake lines or fuel lines.
•Drive cautiously. If you hear the chains rub or bang against your
vehicle, stop and re-tighten the chains. If this does not work, remove
the chains to prevent damage to your vehicle.
•If possible, avoid fully loading your vehicle.
•Remove the tire chains when they are no longer needed. Do not use
tire chains on dry roads.
•The suspension insulation and bumpers will help prevent vehicle
damage. Do not remove these components from your vehicle when
using snow tires and chains.
VEHICLE LOADING – WITH AND WITHOUT A TRAILER
This section will guide you in the proper loading of your vehicle and/or
trailer, to keep your loaded vehicle weight within its design rating
capability, with or without a trailer. Properly loading your vehicle will
provide maximum return of vehicle design performance. Before loading
your vehicle, familiarize yourself with the following terms for determining
your vehicle’s weight ratings, with or without a trailer, from the vehicle’s
Tire Label or Safety Compliance Certification Label:
Base Curb Weight– is the weight of the vehicle including a full tank of
fuel and all standard equipment. It does not include passengers, cargo, or
optional equipment.
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
158

The above calculations also assume that the loads are positioned in your
vehicle in a manner that does not overload the Front or the Rear Gross
Axle Weight Rating specified for your vehicle on the Safety Compliance
Certification Label found on the edge of the driver’s door.
TRAILER TOWING
Your vehicle is classified as a light duty towing vehicle. Do not tow a
trailer until your vehicle has been driven at least 500 miles (800 km).
Towing a trailer places an additional load on your vehicle’s engine,
transmission, brakes, tires and suspension. Inspect these components
carefully after towing.
Your loaded trailer should weigh no more than 1,500 lb. (680 kg).Do
not exceed the GVWR specified on the Safety Compliance
Certification Label.
Towing trailers beyond the maximum recommended gross trailer
weight exceeds the limit of the vehicle and could result in
engine damage, transmission damage, structural damage, loss of vehicle
control, vehicle rollover and personal injury.
The GCW of your vehicle and trailer should not exceed 6,600 lb.
(2,993 kg).
Preparing to tow
Use the proper equipment for towing a trailer and make sure it is
properly attached to your vehicle. See your authorized dealer or a
reliable trailer dealer if you require assistance.
Hitches
Do not use hitches that clamp onto the vehicle bumper. Use a load
carrying hitch. You must distribute the load in your trailer so that
10–15% of the total weight of the trailer is on the tongue.
Safety chains
Always connect the trailer’s safety chains to the frame or hook retainers
of the vehicle hitch. To connect the trailer’s safety chains, cross the
chains under the trailer tongue and allow slack for turning corners.
If you use a rental trailer, follow the instructions that the rental agency
gives to you.
Do not attach safety chains to the bumper.
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Tires, Wheels and Loading
164

It is also important to maintain a proper power steering fluid level in the
power steering fluid reservoir:
•Do not operate the vehicle with a low power steering pump fluid level
(below the MIN mark on the reservoir).
•Some noise is normal during operation. If the noise is excessive, check
for low power steering pump fluid level before seeking service by your
authorized dealer.
•Heavy or uneven steering efforts may be caused by low power steering
pump fluid level. Check for low power steering pump fluid level before
seeking service by your authorized dealer.
•Do not fill the power steering pump reservoir above the MAX mark on
the reservoir, as this may result in leaks from the reservoir.
If the power steering system breaks down (or if the engine is turned
off), you can steer the vehicle manually, but it takes more effort.
If the steering wanders or pulls, check for:
•an improperly inflated tire
•uneven tire wear
•loose or worn suspension components
•loose or worn steering components
•improper steering alignment
Speed sensitive steering
The steering in your vehicle is speed sensitive. At high speeds, steering
assist will decrease to improve steering feel. At lower speeds,
maneuverability will be increased.
If the amount of effort required to steer your vehicle changes while
driving at a constant vehicle speed, have the power steering system
checked by your authorized dealer.
AIR SUSPENSION SYSTEM (IF EQUIPPED)
The air suspension system is designed to improve ride, handling and
general vehicle performance during:
•Certain road conditions
•Steering maneuvers
•Braking
•Accelerations
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
177

This system keeps the rear of your vehicle at a constant level by
automatically adding air or releasing air from the springs.
If you exceed the load limit, the rear air suspension may not operate.
The air suspension shut-off switch is
located on the left side of the trunk.
If this switch is in the OFF position,
the rear air suspension will not
operate.
On vehicles equipped with
Air Suspension, turn OFF
the Air Suspension switch prior to
jacking, hoisting or towing your
vehicle.
Normal vehicle operation does not
require any action by the driver.
TRACTION-LOKAXLE (IF EQUIPPED)
This axle provides added traction on slippery surfaces, particularly when
one wheel is on a poor traction surface. Under normal conditions, the
Traction-Lokaxle functions like a standard rear axle.
Extended use of other than the manufacturer’s specified size tires on a
Traction-Lokrear axle could result in a permanent reduction in
effectiveness. This loss of effectiveness does not affect normal driving
and should not be noticeable to the driver.
AUTOMATIC TRANSMISSION OPERATION
Brake-shift interlock – column-shift transmission
This vehicle is equipped with a brake-shift interlock feature that prevents
the gearshift lever from being moved from P (Park) when the ignition is
in the ON position unless brake pedal is depressed.
If you cannot move the gearshift lever out of P (Park) with ignition in
the ON position and the brake pedal depressed, it is possible that a fuse
has blown or the vehicle’s brakelamps are not operating properly. Refer
toFuses and relaysin theRoadside Emergencieschapter.
If the fuse is not blown, perform the following procedure:
1. Apply the parking brake, turn the ignition to 2 (ACC).
AIR SUSPENSION
SWITCH
INTERRUPTEUR DE
LA SUSPENSION
PNEUMATIQUE
WARNING
AVERTISSEMENTOFF-ARRET
To prevent sudden
vehicle movement,
turn off air suspen-
sion switch prior to
jacking, hoisting or
towing vehicle.
Pour prévenir tout mouvement soudain du véhi-
cule, placer à l'arrêt l'interrupteur de la suspension
pneumatique avant de lever le véhicule (cric ou
pont élévateur) ou de le remorquer.
OFF
2007 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
178