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Symptom Table

WARNING: This page is about a different car, the 2006 Lincoln Navigator and 2006 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM TABLE

Condition Possible Sources Action
  • No communication with the air suspension module
  • Circuit(s).
  • Air suspension control module.
  • Steering system noise
  • Flow 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 intermediate shaft U-joints.
  • Damaged, fractured steering column bearing(s).
  • Steering gear.
  • Power steering pump.
  • Power steering hoses.
  • Binding dash boot seal
  • Excessive steering wheel play
  • Steering gear.
  • Steering column.
  • Steering column intermediate shaft.
  • Steering linkage.
  • Ball joints.
  • Steering system drift/pull/wander
  • Tire pressure.
  • Wheel alignment.
  • Steering gear.
  • Unevenly loaded vehicle.
  • Steering column intermediate shaft.
  • Frame alignment.
  • Feedback
  • Loose, worn or damaged tie rod.
  • Loose, worn or damaged tie-rod ends.
  • Loose or damaged steering gear insulators or bolts.
  • INSTALL new steering gear insulators or bolts if necessary, or TIGHTEN the bolts as needed.
  • Loose lower steering column shaft U-joint bolts.
  • Loose suspension bushings, fasteners or ball joints.
  • Worn or damaged steering column bearing(s).
  • Poor returnability/sticky steering
  • Binding lower steering column shaft U-joints.
  • Loose, worn or damaged tie rod.
  • Loose, worn or damaged tie-rod ends.
  • Suspension components.
  • Binding steering column bearing(s).
  • Binding dash boot seal.
  • Shimmy
  • Loose, worn or damaged tie-rod end.
  • Loose, worn or damaged tie rod.
  • Suspension components.
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