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Pinpoint Test A: Steering Has Lack Of Assist Or Inconsistent Assist (Early Build Vehicles)

  1. A1 CHECK FOR POWER STEERING FLUID CONTAMINATION 
    • Check the power steering fluid for contamination.
    • Is the power steering fluid contaminated? 
    • Yes:  FLUSH the power steering system. REFER to POWER STEERING SYSTEM FLUSHING . CHECK the system for normal operation. If assist concern still exists, GO to A2  .
    • No:  GO to A2  .
  2. A2 CHECK THE STEERING ASSIST WITH THE ENGINE RPM RAISED 
    • NOTE: Do not hold the steering wheel at the stops for an extended amount of time. Damage to the power steering pump may 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? 
    • Yes:  INSTALL a new power steering pump. REFER to POWER STEERING .
    • No:  GO to A3  .
  3. A3 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? 
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