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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> General Information >> OEM General Information >> Noise, Vibration & Harshness >> Diagnosis And Testing >> Noise, Vibration and Harshness (NVH) >> Pinpoint Tests >> Pinpoint Test D: Power Steering Moan

Pinpoint Test D: Power Steering Moan

  1. D1 CHECK THE POWER STEERING SYSTEM 
    • Carry out the VEHICLE COLD SOAK PROCEDURE  in this article.
    • Key in START position.
    • Turn the steering wheel while the noise is occurring and listen for changes in sound pitch or loudness.
    • Key in OFF position.
    • Does the sound pitch or loudness change while turning the steering wheel? 

    Yes  : GO to  D2.

    No  : CONDUCT a diagnosis on other suspect accessory drive components.

  2. D2 VERIFY THE SOURCE 
    • Key in START position.
    • Place an EngineEAR probe near the power steering pump/reservoir while the noise is occurring. While an assistant turns the steering wheel, listen for changes in sound pitch or loudness.
    • Key in OFF position.
    • Does the sound pitch or loudness change while turning the steering wheel? 

    Yes  : VERIFY that the supply tube to the pump is unobstructed. CHECK the fluid condition and level. DRAIN the fluid and REFILL. REFER to POWER STEERING . CARRY OUT the VEHICLE COLD SOAK PROCEDURE  and TEST the system for normal operation.

    No  : Normal system operation.

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