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Pinpoint Test B: Steering Has Lack Of Assist Or Inconsistent Assist - Vehicles With Hydro-Boost®

WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
  1. B1 CHECK THE STEERING ASSIST WITH THE ENGINE RPM RAISED 
      CAUTION: Do not hold the steering wheel at the stops for an extended amount of time. Damage to the power steering pump can occur.
    • Set the engine at 2,100 RPM and turn the steering wheel fully to the left and right.
    • Is steering assist normal with the engine RPM raised? 
    1. YES  : INSTALL a new power steering pump. REFER to POWER STEERING article.
    2. NO  : Go to  B2.
  2. B2 CHECK FOR A CHANGE OF ASSIST ON LEFT AND RIGHT TURNS 
    • With the engine at idle, turn the steering wheel fully to the left and to the right.
    • Does the steering assist change when turning from right to left? 
    1. YES  : INSTALL a new steering gear. REFER to POWER STEERING article.
    2. NO  : CARRY OUT the Pump Flow and Pressure Component Tests .
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