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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 805 (Steering System - General Information - F250-F550) >> Diagnostic Tests >> Steering System >> Pinpoint Tests >> Pinpoint Test B: Steering Has Lack of Assist or Inconsistent Assist - Vehicles With Hydro-Boost® >> Pinpoint Test B: Steering Has Lack Of Assist Or Inconsistent Assist - Vehicles With Hydro-Boost®

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

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. 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 Test in this article.
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