Symptom Chart
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM CHART
| Condition |
Possible Sources |
Action |
- No communication with the variable assist power steering (VAPS) module
|
|
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- No communication with the air suspension module
|
- Circuitry
- Air suspension module
|
|
|
|
- Low fluid level
- Fluid aeration
- Steering gear
- Power steering pump
- Loose or damaged steering linkage
- Loose or damaged suspension component(s)
- Steering column
- Steering column boot bearing
- Intermediate shaft
- Loose dash boot seal
|
|
- Steering is very difficult/ very easy
|
- Seized steering column shaft U-joint(s)
- Damaged, fractured steering column bearing(s)
- Steering gear
- Power steering pump
- Power steering hose(s)
- Binding dash boot seal
|
|
- Excessive steering wheel play
|
- Steering gear
- Steering column
- Steering column shaft
- Steering linkage
- Ball joint(s)
- Strut bearing plate (if applicable)
- Binding dash boot seal
|
|
- Steering system drift/pull/wander
|
- Tire pressure
- Unevenly loaded vehicle
|
- CORRECT the vehicle loading as necessary.
|
- Wheel alignment
- Steering gear
- Steering column intermediate shaft
- Frame alignment
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|