Ryoung226 Posted April 18, 2023 Report Share Posted April 18, 2023 (edited) Hello everyone I have a 2012 ford edge that my daughter has been driving but I am having trouble with the steering wheel locking up while she is driving it I have seen where alot of people have had the same issue but have seen no remedy anyone here had the same issue and fixed it ? Reminder !!!!!!! - Forum Help & Site Suggestions - Ford Edge Forum Edited April 18, 2023 by 1004ron !!!!!!!!!! Quote Link to comment Share on other sites More sharing options...
Haz Posted April 18, 2023 Report Share Posted April 18, 2023 From the 2012 Edge Workshop Manual... Principles of Operation Power Steering The power steering system uses a vane-type pump to move the fluid from the reservoir to the steering gear and through the rest of the steering hydraulic system. The power steering pump is mounted to the engine and driven by the engine accessory drive belt. Power steering fluid flows into the pump from the reservoir. The power steering fluid is trapped between the pump vanes and moved to the high-pressure side of the pump, creating a flow of fluid. The restriction of this flow by the steering gear creates the pressure that provides the steering assist. A combined pressure relief/flow valve is built into the pump to control the maximum pressure and flow provided to the steering system. This action prevents damage to the system and provides the correct level of assist during all engine speeds. While under pressure, the power steering fluid flows through the high-pressure power steering line to the steering gear. The fluid exits the gear and flows through the return line, cooler and finally to the reservoir. The reservoir slows the fluid, allows air to escape and filters the fluid before returning it to the pump. Steering System Symptom Definitions Lack of Assist or Inconsistent Assist Lack of assist or inconsistent assist is experienced when the steering wheel effort is higher than normal. Hard steering can remain constant through the full turn or occur near the end of a turn. It is important to know the difference between hard steering/lack of assist and poor returnability/sticky steering. Hard steering or lack of assist can result from either hydraulic or mechanical conditions. It is extremely important to know if this concern occurs during driving or during high-effort parking maneuvers. Poor Returnability/Sticky Steering Poor returnability and sticky steering is used to describe the poor return of the steering wheel to center after a turn or steering correction is completed. Pinpoint Test A: Steering Has Lack of Assist or Inconsistent Assist NOTE: Hard steering or lack of assist is experienced when the steering wheel effort is higher than normal. Hard steering can remain constant through the full turn, occur near the end of a turn or differ right to left. This pinpoint test is intended to diagnose the following: Power steering fluid contamination Steering gear Power steering pump Power steering hoses PINPOINT TEST A : STEERING HAS LACK OF ASSIST OR INCONSISTENT ASSIST 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 in this section. CHECK the system for normal operation. If assist concern still exists, GO to A2. No GO to A2. A2 CHECK THE STEERING ASSIST WITH THE ENGINE RPM RAISED NOTICE: 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 fully restored to normal with the engine rpm raised? Yes INSTALL a new power steering pump. REFER to Section 211-02. No GO to A3. 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? Yes INSTALL a new steering gear. REFER to Section 211-02. No GO to A4. A4 CHECK THE STEERING LINES AND HOSES FOR RESTRICTIONS Inspect the steering lines and hoses for damage, kinks or restrictions. Are the steering lines or hoses damaged, kinked or restricted? Yes INSTALL new lines or hoses as necessary. No GO to A5. A5 MONITOR THE ENGINE RPM CHANGES NOTICE: Do not hold the steering wheel at the stops for an extended amount of time. Damage to the power steering pump may occur. NOTE: Make sure that the vehicle is on a flat dry surface, all accessories are in the OFF position and that the steering system is at normal operating temperature. Connect the scan tool. Start the engine. With the engine at idle, raise the power steering fluid temperature to 74-80°C (165-176°F) by rotating the steering wheel fully to the left and right several times. Enter the following diagnostic mode on the scan tool: DataLogger — PCM . Monitor the Engine Revolutions Per Minute (RPM) PID while turning the steering wheel quickly to the left stop position and then to the right stop position. Note the engine rpm during the turns. Does the engine rpm change (even temporarily) more than 30 rpm when turning the steering wheel? Yes INSTALL a new steering gear. REFER to Section 211-02. No INSTALL a new power steering pump. REFER to Section 211-02. Good luck! Quote Link to comment Share on other sites More sharing options...
Ryoung226 Posted April 18, 2023 Author Report Share Posted April 18, 2023 It only does this randomly while she is driving the vehicle she says she can shut the car off and restart and it will work but yesterday it took her 6 or 7 times of restarting the car for the steering to come back Quote Link to comment Share on other sites More sharing options...
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