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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 716 (Steering System - General Information - F-150 & Mark LT) >> Diagnostic Tests >> 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 2007 Lincoln Mark LT and 2007 Ford Pickup. 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. 
    1. YES  : INSTALL a new power steering pump. Refer to the appropriate Steering System article for the procedure.
    2. 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. 
    1. YES  : INSTALL a new steering gear. Refer to the appropriate Steering System article for the procedure.
    2. NO  : CARRY OUT the Power Steering Pressure Component Test in this article.