Symptom | Possible Sources | Action |
DDS warning lamp illuminated | Loss of tire pressure. | ADJUST the tire pressure and reset the DDS. For additional information REFER to the owners guide. |
DDS warning lamp illuminated with the correct tire pressure | The DDS reset procedure was not carried out after adjustment of the tire pressure. | REFER to the DDS reset procedure. For additional information REFER to the owners guide. |
DDS warning lamp not illuminated when one or more tire(s) have the incorrect tire pressure | The DDS reset procedure was carried out under incorrect tire conditions. | ADJUST the tire pressure and reset the DDS. For additional information REFER to the owners guide. |
DDS reset command was not confirmed | The DDS reset procedure was not completed. | REFER to the DDS reset procedure. For additional information REFER to the owners guide. |
DDS failure warning display | Anti-lock brake system (ABS) module. | REFER to the Ford approved diagnostic tool. |
Tire(s) show excess wear on edge of tread | Tire(s) under-inflated. | ADJUST the tire pressure(s). |
Vehicle overloaded. | CORRECT as necessary | |
Incorrect wheel alignment. | ADJUST the wheel alignment.
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing). |
|
Tire(s) show excess wear in center of tread | Tire(s) over-inflated. | ADJUST the tire pressure(s). |
Other excessive tire wear concerns | Incorrect tire pressure(s). | ADJUST the tire pressure(s). |
Wheel and tire assemblies need rotating. | ROTATE the wheel and tire assemblies. | |
Incorrect wheel alignment. | ADJUST the wheel alignment.
REFER to: Suspension System (204-00 Suspension System - General Information, Diagnosis and Testing). |
|
Vehicle overloaded. | CORRECT as necessary. | |
Loose or leaking front strut and spring assembly. | TIGHTEN or INSTALL new
suspension components as
necessary.
REFER to: Front Strut and Spring Assembly (204-01 Front Suspension, Disassembly and Assembly). |
|
Wheel bearings worn. | INSTALL new wheel bearings
as necessary.
REFER to: Front Wheel Bearing (204-01 Front Suspension, Removal and Installation). |
|
Suspension components, bushings and ball joints. | CHECK or INSTALL new suspension components as necessary. | |
Excessive lateral or radial runout of wheel or tire. | BALANCE the wheel and tire
assemblies. Using a suitable
dial indicator gauge and holding
fixture, CHECK lateral and
radial runout of the wheel and
tire assemblies. INSTALL new
wheel and tire assemblies as
necessary.
REFER to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation). |
|
Wobble or shimmy affecting wheel runout | Damaged wheel. | INSPECT the wheel rims for
damage. BALANCE the wheel
and tire assemblies. Using a
suitable dial indicator gauge
and holding fixture, CHECK
lateral and radial runout of the
wheel and tire assemblies.
INSTALL new wheel and tire assemblies as necessary. REFER to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation). |
Front wheel bearing. | CHECK or INSTALL new wheel
bearings as necessary.
REFER to: Front Wheel Bearing (204-01 Front Suspension, Removal and Installation). |
|
Excessive vehicle vibration, rough steering | Suspension components. | CHECK or INSTALL new suspension components as necessary. |
Vehicle vibrations from wheels | Incorrect tire pressure(s). | ADJUST the tire pressure(s). |
Wheel or tire imbalance. | BALANCE the wheel and tire assemblies. | |
Uneven tire wear. | INSTALL a new tire(s) as
necessary.
REFER to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation). |
|
Brake disc imbalance | CHECK the brake disc for foreign material. | |
Water in tire(s). | REMOVE the water. | |
Bent wheel. | INSTALL a new wheel and tire
assembly.
REFER to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation). |
|
Incorrectly seated tire bead. | SPIN the wheel on the vehicle.
EXAMINE the area where the tire and the wheel meet. If that section of the tire appears to waver while being rotated, the tire bead may not be correctly seated on the wheel. REMOVE the tire and CLEAN the bead seat areas on both wheel and tire. |
|
Excessive lateral or radial runout of wheel or tire. | BALANCE the wheel and tire
assemblies. Using a suitable
dial indicator gauge and holding
fixture, CHECK the lateral and
radial runout of the wheel and
tire assemblies. INSTALL new
wheel and tire assemblies as
necessary.
REFER to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation). |
|
Foreign material between wheel mounting face and hub mounting surface. | CLEAN mounting surfaces. | |
Front wheel bearing. | CHECK or INSTALL new wheel
bearings as necessary.
REFER to: Front Wheel Bearing (204-01 Front Suspension, Removal and Installation). |
|
Seized wheel nuts | Corrosion. | CAUTION: Do not permit
lubricant to get on cone sets of
stud holes or on cone angle of
wheel nuts. If corrosion is
slight, wire brush away. If
corrosion is excessive,
INSTALL new wheel studs and
nuts.
REFER to: Wheel and Tire (204-04 Wheels and Tires, Removal and Installation). If the condition persists, LUBRICATE the first three threads of each wheel stud with a graphite-based lubricant. |
Vehicle overloaded | CORRECT as necessary. |