Dodge Neon / Neon SRT-4. Manual — part 377
DIAGNOSIS AND TESTING - VEHICLE LEAD
DIAGNOSIS AND CORRECTION
Use the following chart to diagnose a vehicle that
has a complaint of a drift or lead condition. The use
of this chart will help to determine if the lead condi-
tion is the result of a bad tire or is caused by the
wheel alignment.
Fig. 18 Tire Wear Patterns
Fig. 19 Tread Wear Indicators
1 - TREAD ACCEPTABLE
2 - TREAD UNACCEPTABLE
3 - WEAR INDICATOR
22 - 10
TIRES/WHEELS
PL/SRT-4
TIRES (Continued)
PL/SRT-4
TIRES/WHEELS
22 - 11
TIRES (Continued)
STANDARD PROCEDURE
STANDARD PROCEDURE - TIRE INFLATION
PRESSURES
The specified tire pressures have been chosen to
provide safe operation, vehicle stability, and a smooth
ride. The proper tire pressure specification can be
found on the Tire Inflation Pressure Label provided
with the vehicle (usually on the driver’s side B-pil-
lar).
A quality air pressure gauge is recommended to
check tire air pressure. Tire pressure should be
checked cold once per month. Check tire pressure
more frequently when the weather temperature var-
ies widely. Tire pressure will decrease when the out-
door temperature drops. After checking the air
pressure, replace valve cap finger tight.
Inflation pressures specified on the Tire Inflation
Pressure Label are always the cold inflation pressure
of the tire. Cold inflation pressure is obtained after
the vehicle has not been operated for at least 3
hours, or the vehicle is driven less than one mile
after being inoperative for 3 hours. Tire inflation
pressures may increase from 2 to 6 pounds per
square inch (psi) during operation. Do not reduce this
normal pressure buildup.
Improper inflation can cause:
• Uneven wear patterns
• Reduced tread life
• Reduced fuel economy
• Unsatisfactory ride
• The vehicle to drift.
WARNING: OVER OR UNDER INFLATED TIRES CAN
AFFECT VEHICLE HANDLING. THE TIRE CAN FAIL
SUDDENLY, RESULTING IN LOSS OF VEHICLE
CONTROL.
Under inflation causes rapid shoulder wear, tire
flexing, and can result in tire failure (Fig. 20).
Over inflation causes rapid center wear and loss of
the tire’s ability to cushion shocks (Fig. 21).
STANDARD PROCEDURE - TIRE PRESSURE
FOR HIGH SPEED OPERATION
DaimlerChrysler Corporation advocates driving at
safe speeds within posted speed limits. Speed capac-
ity of a tire is a function of the tire speed rating,
inflation pressure and vehicle axle weight. Where
speed limits allow the vehicle to be driven at high
speeds, correct tire inflation pressure is very impor-
tant. Vehicles loaded to maximum capacity should
not be driven at continuous speeds over 120 km/h (75
mph). Never exceed the maximum speed capacity of
the tire. For information on tire identification and
speed ratings, (Refer to 22 - TIRES/WHEELS/TIRES
- DESCRIPTION).
STANDARD PROCEDURE - TIRE LEAK
REPAIRING
For proper repairing, a radial tire must be removed
from the wheel. Repairs should only be made if the
defect, or puncture, is in the tread area (Fig. 22). The
tire should be replaced if the puncture is located in
the sidewall.
Deflate tire completely before attempting to dis-
mount the tire from the wheel. Use a lubricant
such as a mild soap solution when dismounting
or mounting tire. Use tools free of burrs or sharp
edges which could damage the tire or wheel rim.
Before mounting tire on wheel, make sure all rust
is removed from the rim bead and repaint if neces-
sary.
Fig. 20 Under Inflation Wear
1 - THIN TIRE TREAD AREAS
Fig. 21 Over Inflation Wear
1 - THIN TIRE TREAD AREA
22 - 12
TIRES/WHEELS
PL/SRT-4
TIRES (Continued)
Install wheel on vehicle, and progressively tighten
the 5 wheel nuts to a torque of 135 N·m (100 ft. lbs.).
CLEANING - TIRES
Before delivery of a vehicle, remove the protective
coating on the tires with white sidewalls or raised
white letters. To remove the protective coating, apply
warm water and let it soak for a few minutes. After-
wards, scrub the coating away with a soft bristle
brush. Steam cleaning may also be used to remove
the coating.
CAUTION: DO NOT use gasoline, mineral oil, oil-
based solvent or a wire brush for cleaning.
SPECIFICATIONS
TIRES - SRT-4
DESCRIPTION
SPECIFICATION
MANUFACTURER
BF GOODRICH
MODEL
KDWII
TIRE SIZE
205/50 ZR17
TREAD PATTERN
DIRECTIONAL
WHEELS
DESCRIPTION
Original equipment wheels are designed for proper
operation at all loads up to the specified maximum
vehicle capacity.
All models use steel or cast aluminum drop center
wheels. Every wheel has raised sections between the
rim flanges and rim drop well called safety humps
(Fig. 23).
Initial inflation of the tires forces the bead over
these raised sections. In case of air loss the raised
sections help hold the tire in position on the wheel
until the vehicle can be brought to a safe stop.
Cast aluminum wheels require special balance
weights to fit on the thicker flange of the rim and
special wheel clamps for the alignment equipment.
The wheel studs and nuts are designed for specific
wheel applications and must be replaced with equiv-
alent parts. Do not use replacement parts of lesser
quality or of a substitute design. All aluminum
wheels use wheel nuts with an enlarged nose. This
enlarged nose is necessary to ensure proper retention
of the wheels.
Vehicles that are equipped with lock-on wheel cov-
ers use large nose wheel nuts. The wheel nuts are
externally threaded so that the wheel covers can be
attached to the wheel nuts.
Fig. 22 Tire Repair Area
1 - REPAIRABLE AREA
Fig. 23 Safety Rim
1 - TIRE
2 - WELL
3 - SAFETY HUMPS
4 - FLANGE
PL/SRT-4
TIRES/WHEELS
22 - 13
TIRES (Continued)
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