2002 Mercury Grand Marquis tires

SERVICING YOUR TIRES
Checking the tire pressure
²Use an accurate tire pressure gauge.
²Check the tire pressure when tires are cold, after the vehicle has been
parked for at least one hour or has been driven less than 5 km (3
miles).
²Adjust tire pressure to recommended specifications found on the Tire
Pressure label.
Improperly inflated tires can affect vehicle handling and can fail
suddenly, possibly resulting in loss of vehicle control.
Tire rotation
Because your vehicle's tires perform different jobs, they often wear
differently. To make sure your tires wear evenly and last longer, rotate
them as indicated in the scheduled maintenance guide. If you notice that
the tires wear unevenly, have them checked.
²Four tire rotation (for vehicles
with aluminum wheels)
Maintenance and Specifications
227

²Five tire rotation (for vehicles
with steel wheels and full size
spare tires)
Replacing the tires
Replace the tires when the wear
band is visible through the tire
treads.
When replacing full size tires, never mix radial bias-belted, or
bias-type tires. Use only the tire sizes that are listed on the
Certification or Tire Label. Make sure that all tires are the same size,
speed rating, and load-carrying capacity. Use only the tire combinations
recommended on the label. If you do not follow these precautions,
your vehicle may not drive properly and safely.
Make sure that all replacement tires are of the same size, type,
load-carrying capacity and tread design (e.g., ªAll Terrainº, etc.),
as originally offered by Ford.
Maintenance and Specifications
228

Failure to follow these precautions may adversely affect the
handling of the vehicle and make it easier for the driver to lose
control and roll over.
Tires that are larger or smaller than your vehicle's original tires may also
affect the accuracy of your speedometer.
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.
Follow these guidelines when using snow tires and chains:
²Use only cable type chains offered by Ford as an accessory or
equivalent on vehicles with aluminum wheels. Using SAE class S or
other conventional link type chains may cause damage to the vehicle's
wheel house and/or body. Either cable type chains or SAE class S
chains can be used on vehicles with original equipment steel wheels.
²Install chains securely, verifying that the chains do not touch any
wiring, brake lines or fuel lines.
²Drive 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.
²If possible, avoid fully loading your vehicle.
²Remove the tire chains when they are no longer needed. Do not use
tire chains on dry roads.
²The suspension insulation and bumpers will help prevent vehicle
damage. Do not remove these components from your vehicle when
using snow tires and chains.
Maintenance and Specifications
229

SecuriLock passive anti-theft
system ........................102±103, 105
Servicing your vehicle ..............194
Spark plugs,
specifications .............230, 233±234
Specification chart,
lubricants ...........................232±233
Speed control ..............................75
Speedometer ...............................21
Starting your vehicle .......138±139,
141
jump starting ..........................171
Steering
speed sensitive .......................147
Steering wheel
controls ..........................69, 75, 79
tilting .........................................69
T
Tires ...........................166, 225±227
changing ..........................166±167
checking the pressure ............227
replacing ..................................228
rotating ....................................227
snow tires and chains ............229
tire grades ...............................226
treadwear ................................226
Towing .......................................154
recreational towing .................157
trailer towing ..........................154
wrecker ....................................176
Traction control ........................145
active light ................................14
Traction-lok rear axle ...............152Transmission .............................148
fluid, checking and adding
(automatic) .............................222
fluid, refill capacities ..............230
lubricant specifications ..232±233
Trip odometer .............................22
Trunk ...........................................93
remote release ....................90, 96
Turn signal ............................15, 61
V
Vehicle dimensions ...................234
Vehicle Identification Number
(VIN) ..........................................235
Vehicle loading ..........................153
Ventilating your vehicle ...........142
W
Warning chimes ...........................16
Warning lights (see Lights) .......10
Washer fluid ..............................197
Water, Driving through .............152
Windows
power .........................................70
Windshield washer fluid and
wipers
checking and adding fluid .....197
checking and cleaning ..............68
operation ...................................68
replacing wiper blades .............68
Wrecker towing .........................176
Index
245