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Problem Symptoms Table

WARNING: This page is about a different car, the 2004 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

Use table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in the order shown. If necessary, repair or replace these parts.

PROBLEM SYMPTOMS TABLE - STEERING SYSTEM

Symptom Suspect Area
Hard steering
  1. Tires (Improperly inflated)
  2. Power steering fluid level (Low)
  3. Drive belt (Loose)
  4. Front wheel alignment (Incorrect)
  5. Steering system joints (Worn)
  6. Suspension arm ball joints (Worn)
  7. Steering column (Binding)
  8. Power steering vane pump
  9. Power steering gear
  10. PPS system
Poor return
  1. Tires (Improperly inflated)
  2. Front wheel alignment (Incorrect)
  3. Steering column (Binding)
  4. Power steering gear
Excessive play
  1. Steering system joints (Worn)
  2. Suspension arm ball joints (Worn)
  3. Intermediate shaft, Universal joint, Sliding yoke (Worn)
  4. Front wheel bearing (Worn)
  5. Power steering gear
  6. PPS system
Abnormal noise
  1. Power steering fluid level (Low)
  2. Steering system joints (Worn)
  3. Power steering gear

HINT:

When the problem occurs on the power tilt and telescopic steering system, refer to the DI section (See HOW TO PROCEED WITH TROUBLESHOOTING ).

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