2006 Mercury Grand Marquis suspension

•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
This system keeps the rear of your vehicle at a constant level by
automatically adding air or releasing air from the springs.
2006 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
177

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-Lok
axle functions like a standard rear axle.
Extended use of other than the manufacturer’s specified size tires on a
Traction-Lok
rear 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
2006 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Driving
178

Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
1 15A Cluster, Lighting Control Module
(Interior Lighting)
2 10A Ignition (ON) - Electronic
Automatic Temperature Control
(EATC) module, A/C mode switch
(vehicles equipped with manual
A/C only), A/C blower relay coil
3 10A EATC module
4 10A Ignition (ON) - Anti-lock Brake
System (ABS) module, Rear Air
Suspension Module (RASM),
Variable Assist Power Steering
(VAPS)
5 10A Speed control deactivation switch,
Stop signal
6 10A Ignition (ON) - Cluster
7 15A LCM (Park lamps, Corner lamps)
8 10A LCM
9 10A LCM (Switch illumination)
10 5A Ignition (START) - Audio mute
11 10A Ignition (ON/ACC) - window relay
coil
12 10A Ignition (START) - Starter relay
coil, DTRS
13 10A Ignition (ON/ACC) - Wiper
module
14 10A Ignition (ON) - BTSI (Floor-shift
transmission)
15 7.5A Ignition (ON/ACC) - LCM, Door
lock switch illumination, Heated
seat switch illumination,
Moonroof, Overhead console,
Electrochromatic mirror
2006 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
189

The high-current fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
1 25A* Ignition switch (Key in, RUN 1,
RUN 2), Hazards
2 25A* Ignition switch (RUN/START,
RUN/ACC, START)
3 10A* Powertrain Control Module (PCM)
keep alive power
4 20A* Fuel relay feed
5 10A* Rear Air Suspension Module
(RASM), VAPS
6 15A* Alternator regulator
7 30A* PCM relay feed
8 20A* Driver’s Door Module (DDM)
9 15A* Ignition coil relay feed
10 20A* Horn relay feed
11 15A* A/C clutch relay feed
503
502
501
24
23
20
19 22
21302303304
301 207201 202203 204
209
206
208
205602118
114
110
106
102
117
113
109
105
101
116
112
108
104
115
111
107
103
18
16
14
1210
8
6
4
2
17
15
13
119
7
5
3
1 601
2006 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
192

Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
12 25A* Audio
13 20A* Instrument panel power point
14 20A* Stop lamp switch
15 20A* Heated seats
16 15A* Foglamps
17 — Not used
18 — Not used
19 15A* Injectors
20 15A* PCM, Mass Air Flow (MAF)
sensor, IAT
21 15A* Powertrain loads and sensors, A/C
clutch relay coil
22 — Not used
23 — Not used
24 — Not used
101 40A** Blower relay feed
102 50A** Cooling fan
103 50A** Instrument panel (I/P) fuse box
feed #1 (I/P fuses 19, 21, 23, 25
and 27)
104 40A** Instrument panel (I/P) fuse box
feed #2 (I/P fuses 1, 3, 5, 7, 8 and
9)
105 30A** Starter relay feed
106 40A** Anti-lock Brake System (ABS)
module (Pump)
107 40A** Rear defroster relay feed
108 20A** Moonroof
109 20A** ABS module (Valves)
110 30A** Wiper module
111 — Not used
112 30A** Air suspension compressor
2006 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
193

2. Place gearshift lever in P (Park),
turn engine OFF and block the
diagonally opposite wheel.
3. Remove the spare tire and the
jack. The jack could be located:
•A — behind the mini spare tire or
•B — behind the full size spare
tire
On vehicles equipped with
Air Suspension, turn OFF
the Air Suspension switch prior to
jacking, hoisting or towing your
vehicle.
Refer toAir suspension systemin
theDrivingchapter of theOwner’s
Guidefor more information.
4. Remove the lug wrench from the
jack. Rotate the lug wrench socket
out from the handle.
OFF
A
2006 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
198

To lessen risk of personal
injury, do not put any part
of your body under the vehicle
while changing a tire. Do not start
the engine when your vehicle is
on the jack. The jack is ONLY
meant for changing the tire.
•Never use the rear differential
as a jacking point.
8. Remove the metal lug nuts with the lug wrench.
9. Replace the flat tire/wheel assembly with the spare tire/wheel
assembly, making sure the valve stem is facing outward. Reinstall lug
nuts until the wheel is snug against the hub. Do not fully tighten the lug
nuts until the wheel has been lowered.
10. Lower the vehicle by turning the jack handle counterclockwise.
11. Remove the jack and fully
tighten the lug nuts in the order
shown. Refer toWheel lug nut
torque specificationslater in this
chapter for the proper lug nut
torque specification.
12. For full size spare aluminum
wheel, firmly install the center
ornament. If equipped with a full
size spare tire/wheel assembly and
lug nut retained full wheelcover, install the wheelcover by tightening the
five black plastic nuts in the order shown on the wheelcover using the
lug wrench with about 80 lb. in. (9 N•m) torque. Then firmly install the
wheelcover center ornament.
13. Put flat tire, jack and lug wrench away.
14. Turn on the air suspension switch (if equipped).
WHEEL LUG NUT TORQUE SPECIFICATIONS
Retighten the lug nuts to the specified torque at 500 miles (800 km)
after any wheel disturbance (tire rotation, changing a flat tire, wheel
removal, etc.).
1
4 3
2 5
2006 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
200

WRECKER TOWING
If you need to have your vehicle towed, contact a professional towing
service or, if you are a member of a roadside assistance program, your
roadside assistance service provider.
It is recommended that your vehicle be towed with a wheel lift or flatbed
equipment. Do not tow with a slingbelt. Ford Motor Company has not
approved a slingbelt towing procedure.
Before your vehicle can be towed, the air suspension control in the
luggage compartment must be turned to the OFF position (if equipped).
If the vehicle is towed by other means or incorrectly, vehicle
damage may occur.
Ford Motor Company produces a towing manual for all authorized tow
truck operators. Have your tow truck operator refer to this manual for
proper hook-up and towing procedures for your vehicle.
2006 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
206