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Home >> Mazda >> 2004 >> RX-8 1.3 3 >> Repair and Diagnosis >> External Pages >> Different car >> Section 116 (Rear Suspension System) >> Noise, Vibration & Harshness (NVH) >> Component Tests >> Steering Gear Grunt/Shudder Test

Steering Gear Grunt/Shudder Test

WARNING: This page is about a different car, the 2004 Mazda Tribute, 2003 Mazda Tribute, and 2002 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.
  1. Start and run the vehicle to operating temperature.
  2. Set engine idle speed to 1,200 RPM.
    3. CAUTION: Do not hold the steering wheel against the stops for more than three to five seconds at a time. Damage to the power steering pump will occur.
  3. Rotate the steering wheel to the RH stop, then turn the steering wheel 90 degrees back from that position. Turn the steering wheel slowly in a 15 to 30 degree arc.
  4. Turn the steering wheel another 90 degrees. Turn the steering wheel slowly in a 15 to 30 degree arc.
  5. Repeat the test with power steering fluid at different temperatures.
  6. If a light grunt is heard or a low (50-200 Hz) shudder is present, this is a normal steering system condition.
  7. If a loud grunt is heard or a strong shudder is felt, fill and purge the power steering system.
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