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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 459 (Steering System-General Information - F250-F550 Super Duty) >> Diagnosis And Testing >> Steering System >> Pinpoint Tests >> Pinpoint Test A: Steering Has Lack of Assist or Inconsistent Assist >> Pinpoint Test A: Steering Has Lack Of Assist Or Inconsistent Assist

Pinpoint Test A: Steering Has Lack Of Assist Or Inconsistent Assist

WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. A1 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? 

    Yes  : INSTALL a new power steering pump.

    No  : Go to A2.

  2. A2 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? 

    Yes  : INSTALL a new steering gear.

    No  : CARRY OUT the PUMP FLOW AND PRESSURE  .