2005 FORD GT inflation pressure

Second stage: Checking tire pressure
1. Stop driving after approximately two miles. Refer to theTips for use
of the tire inflation kit for safe operation of the tire inflation kit. Then
check the air pressure of the damaged tire as follows:
• Ensure the compressor is turned off by pressing the “O ” side of the
orange button.
• Remove the hose and the cable with the electrical plug from the kit ’s
storage compartment.
• Remove the valve cap from the sealed tire, then screw the hose firmly
onto the tire ’s air valve.
• Start the engine (only if the vehicle is outdoors or in a
well-ventilated area) to prevent the vehicle’s battery from draining.
• Insert the electrical plug into the vehicle ’s power point.
• Read the air pressure gauge on the inflation kit.
2. If the air pressure reads 19 psi or higher, switch the air compressor on
by pressing the “I” side of the orange button and adjust the air pressure
to the recommended pressure. This pressure can be found on a label
affixed to the B-Pillar. If the air pressure is higher than the label states,
reduce the excess pressure by pressing down on the pressure release
valve (8).
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Note:Before driving any further, adjust the tire pressure to the
recommended pressure.
3. Turn the air compressor off by pressing the “O ” side of the orange
button, then unscrew the hose from the tire ’s air valve, reinstall the tire
valve cap, unplug the electrical plug from the power point and stow the
inflation kit in its proper place.
What to do after the tire has been sealed
After using the inflation kit to seal you tire, you will need to replace the
sealing compound and hose. Sealing compound and spare parts can be
obtained and replaced at an authorized Ford Motor Company dealership
or tire dealer. Empty sealing compound bottles may be disposed of at
home; however, liquid residue from the sealing compound should be
disposed by your local Ford Motor Company dealership or tire dealer, or
in accordance with local waste disposal regulations.
Note: After the sealing compound has been used, the maximum vehicle
speed is 50 mph and the maximum driving distance is 120 miles. The
sealed tire should be replaced immediately, or at least within the 120 miles.
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Note:If you experience any unusual vibration, ride disturbance or noise
while driving, reduce your speed until you can safely pull off to the side
of the road to call for roadside assistance.
You can check the tire pressure any time within the 120 miles by
performing the following:
1. Ensure the compressor is turned off by pressing the “O ” side of the
orange button.
2. Remove the hose and the cable with the electrical plug from the kit ’s
storage compartment.
3. Remove the valve cap from the sealed tire, then screw the hose firmly
onto the tire ’s air valve.
4. Insert the electrical plug into the vehicle ’s power point.
5. Start the engine (only if the vehicle is outdoors or in a
well-ventilated area) to prevent the vehicle’s battery from draining.
6. Read the air pressure gauge on the inflation kit.
If the tire pressure needs to be increased, operate the air compressor
and inflate the tire to the recommended pressure as indicated on the
label on the B-Pillar.
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.).
Bolt size Wheel lug nut torque* lb.ft. N•m
1⁄2x 20 100 135
* Torque specifications are for nut and bolt threads free of dirt and
rust. Use only Ford recommended replacement fasteners.
When a wheel is installed, always remove any corrosion, dirt or
foreign materials present on the mounting surfaces of the wheel
or the surface of the front disc brake hub and rotor that contacts the
wheel. Installing wheels without correct metal-to-metal contact at
the wheel mounting surfaces can cause the wheel nuts to loosen
and the wheel to come off while the vehicle is in motion, resulting in
loss of control.
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7.H: Indicates the tire ’s speed rating. The speed rating denotes the
speed at which a tire is designed to be driven for extended periods of
time under a standard condition of load and inflation pressure. The tires
on your vehicle may operate at different conditions for load and inflation
pressure. These speed ratings may need to be adjusted for the difference
in conditions. The ratings range from 81 mph (130 km/h) to 186 mph
(299 km/h). These ratings are listed in the following chart.
Note: You may not find this information on all tires because it is not
required by federal law.
Letter rating Speed rating - mph (km/h)
M 81 mph (130 km/h)N 87 mph (140 km/h)
Q 99 mph (159 km/h)R 106 mph (171 km/h) S 112 mph (180 km/h)
T 118 mph (190 km/h)
U 124 mph (200 km/h)
H 130 mph (210 km/h) V 149 mph (240 km/h)
W 168 mph (270 km/h) Y 186 mph (299 km/h)
Note: For tires with a maximum speed capability over 149 mph (240
km/h), tire manufacturers sometimes use the letters ZR. For those with
a maximum speed capability over 186 mph (299 km/h), tire
manufacturers always use the letters ZR.
8. U.S. DOT Tire Identification Number (TIN): 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.
9. M+S or M/S: Mud and Snow, or
AT: All Terrain, or
AS: All Season.
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10.Tire Ply Composition and Material Used: Indicates the number of
plies or the number of layers of rubber-coated fabric in the tire tread and
sidewall. Tire manufacturers also must indicate the ply materials in the
tire and the sidewall, which include steel, nylon, polyester, and others.
11. Maximum Load: Indicates the maximum load in kilograms and
pounds that can be carried by the tire. Refer to the tire label or the
safety certification label, which is located on the B-Pillar or the edge of
the driver ’s door, for the correct tire pressure for your vehicle.
12. Treadwear, Traction and Temperature Grades
• Treadwear: The treadwear grade is a comparative rating based on the
wear rate of the tire when tested under controlled conditions on a
specified government test course. For example, a tire graded 150
would wear one and one-half (1
1⁄2) times as well on the government
course as a tire graded 100.
• Traction: The traction grades, from highest to lowest are AA, A, B,
and C. The grades represent the tire ’s ability to stop on wet pavement
as measured under controlled conditions on specified government test
surfaces of asphalt and concrete. A tire marked C may have poor
traction performance.
• Temperature: The temperature grades are A (the highest), B and C,
representing the tire ’s resistance to the generation of heat and its
ability to dissipate heat when tested under controlled conditions on a
specified indoor laboratory test wheel.
13. Maximum Permissible Inflation Pressure: Indicates the tire
manufacturers ’maximum permissible pressure and/or the pressure at
which the maximum load can be carried by the tire. This pressure is
normally higher than the manufacturer ’s recommended cold inflation
pressure which can be found on either the tire label or certification label
which is located on the B-Pillar or the edge of the driver ’s door. The cold
inflation pressure should never be set lower than the recommended
pressure on the vehicle label.
The tire suppliers may have additional markings, notes or warnings such
as standard load, radial tubeless, etc.
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Additional information contained on the tire sidewall for“LT ”type
tires
“ LT ”type tires have some additional
information beyond those of “P ”
type tires; these differences are
described below:
1. LT: Indicates a tire, designated by
the Tire and Rim Association
(T&RA), that is intended for service
on light trucks.
2. Load Range/Load Inflation
Limits: Indicates the tire ’s
load-carrying capabilities and its
inflation limits.
3. Maximum Load Dual lb. (kg)
at psi (kPa) cold: Indicates the
maximum load and tire pressure
when the tire is used as a dual; defined as four tires on the rear axle (a
total of six or more tires on the vehicle).
4. Maximum Load Single lb. (kg) at psi (kPa) cold: Indicates the
maximum load and tire pressure when the tire is used as a single;
defined as two tires (total) on the rear axle.
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Information on“T ” type tires
“ T ” type tires have some additional
information beyond those of “P ”
type tires; these differences are
described below:
T145/80D16 is an example of a tire
size.
Note: The temporary tire size for
your vehicle may be different from
this example.
1. T: Indicates a type of tire,
designated by the Tire and Rim
Association (T&RA), that is
intended for temporary service on
cars, SUVs, minivans and light
trucks.
2. 145: Indicates the nominal width
of the tire in millimeters from
sidewall edge to sidewall edge. In general, the larger the number, the
wider the tire.
3. 80: Indicates the aspect ratio which gives the tire ’s ratio of height to
width. Numbers of 70 or lower indicate a short sidewall.
4. D: Indicates a “diagonal ”type tire.
R: Indicates a “radial ”type tire.
5. 16: Indicates the wheel or rim diameter in inches. If you change your
wheel size, you will have to purchase new tires to match the new wheel
diameter.
Location of the tire label
You will find a tire label containing tire inflation pressure by tire size and
other important information located on the B-Pillar or the edge of the
driver ’s door.
TIRE CARE
Improper or inadequate vehicle maintenance can also cause tires to wear
abnormally. Here are some of the important maintenance items:
Tire wear
Measure and inspect the tire tread on all your tires periodically.
Advanced and unusual tire wear can reduce the ability of tread to grip
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Wheel misalignment in the front or the rear can cause uneven and rapid
treadwear of your tires and should be corrected by a qualified technician
at a Ford or Lincoln/Mercury 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
Because your vehicle is equipped with unique larger tires on the rear
wheels, you can only rotate tires side to side. You must not rotate tire in
a crisscross pattern or front to rear. If you notice that the tires wear
unevenly, have them checked.
Rotating your tires at the recommended interval (as indicated in the
Scheduled Maintenancechapter) 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).
• Tire rotation
Sometimes irregular tire wear can be corrected by rotating the tires.
Note: If your tires show uneven wear ask a qualified technician at a
Ford or Lincoln/Mercury dealership to check for and correct any wheel
misalignment, tire imbalance or mechanical problem involved before tire
rotation.
Note: After having your tires rotated, inflation pressure must be checked
and adjusted to the vehicle requirements.
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