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How to Fix Power Steering Assist Fault Ford Fusion
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The Ford Fusion, a popular and budget-friendly daily commuter, has found its way into the lives of numerous users. However, it is not without its challenges, with the power steering system presenting a prominent concern.
The occurrence of the power steering assist fault message is a common problem in Ford Fusions and has prompted several recalls.
What Does Power Steering Assist Fault Mean on a Ford?
The power steering assist fault in a Ford is an indicator that appears when the power steering system in your vehicle malfunctions.
When this occurs, the steering becomes more challenging to maneuver, as it lacks the assistance of the power steering system. With an understanding of what this fault signifies, let's delve into the primary causes of the power steering assist fault in a Ford.
What Causes Steering Assist Fault in a Ford Fusion?
Before delving into Ford Fusion issues, let's explore common power steering system faults that are applicable to Ford vehicles. The type of fault may vary based on whether your Ford Fusion employs electric or hydraulic power steering.
Electrical Failures
Both electric and hydraulic power steering systems involve electronics that control their operation. Failures in wiring, actuators, sensors, or blown fuses can disrupt power assist. In electric systems, a failed power steering motor leads to a lack of assistive torque.
In some hydraulic systems, a faulty electric pump can result in insufficient pressure in the power steering assist fluid. Electrical failures trigger a power steering assist fault warning, along with an OBD-II error code.
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Low Fluid Levels
Hydraulic power steering systems or hybrids require fluid to function properly. Low fluid levels reduce the medium available for transmission, resulting in harder steering.
Check power steering fluid levels using the labeled, clear reservoir under the hood. Some hybrid vehicles share hydraulic fluid between the brake and power steering systems. Significant fluid loss may indicate a leak; have a professional inspect the system.
Belt Issues
If your Ford Fusion features a mechanical pump driven by an engine pulley belt, a missing or slipping belt will lead to a complete loss of power. Inspect the engine bay for loose or missing belts and listen for screeching or squealing sounds from slipping belts.
Ford-Specific Power Steering System Failures
Over the years, the Ford Fusion has experienced unique power steering system failures, prompting recalls:
- Faulty steering motor sensor, 2012 model year: potentially inaccurate sensor readings could lead to a power steering assist shutdown.
- Rusty power steering assist motor, 2013-2016 model years: corroded bolts attaching the power assist motor to its housing can cause detachment.
- General Electronic Power Assisted Steering (EPAS) failure
The third-generation EPAS system may encounter multiple malfunctions, primarily noticeable at speeds below 20 MPH. Although no recall has been issued, consumer reports highlight various system-related complaints.
Can You Drive Your Fusion with a Power Steering Assist Fault?
Driving with a malfunctioning power steering assist is not advisable, as it significantly increases the steering effort and can result in a sensation of the car pulling to one side.
This can lead to potentially unsafe situations. If you are having problems with your Fusion's power steering assist system, you should have it evaluated by a Ford dealership right away. The sooner you identify and fix the issue, the better your overall driving experience and safety.
How to Fix the Power Steering Fault Code
The procedures for addressing the problem will differ depending on the model of your Ford Fusion and the sort of power steering system it has. Here are some troubleshooting and resolution methods you may take to resolve the issue:
Inspect the fuse box
Ensure that none of the fuses related to the power steering are missing or blown. Replace any blown fuses and observe the system. If a fuse blows again, seek professional help to troubleshoot the electrical system.
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Recall check
Determine if your Ford Fusion is part of a recall. If it is, verify if it has undergone the necessary fixes. If not, address the recall-related issues by taking your vehicle to a dealership or an accredited mechanic for resolution.
Hydraulic power steering
If your steering assist operates hydraulically, confirm that you have an adequate level of power steering fluid, and check that the power steering pump is connected to the crankshaft with a functioning belt.
Diagnostic check
Examine the various control modules and engine control unit (ECU) for power steering-specific error codes. These codes can provide insights into the specific issues that need attention.
In some cases, the warning light may be triggered by a low fluid level or a blown fuse. However, if it persists, a comprehensive diagnostic process will be necessary to identify and address the underlying problem thoroughly.
How to Reset the Power Steering Fault Code
You can employ a diagnostic tool to clear the codes through the OBD-II port or reset the system by following these steps:
- Start the car, and then turn it off to initiate a system scan during start-up.
- Repeat this process up to four times to clear the code.
Please be aware that these two steps will be effective only if you have addressed the problem or if the issue is intermittent, and the system conducts a check during start-up and finds no faults.
Caution: Resetting or erasing the fault code without first diagnosing and resolving the underlying issue is not advisable. Your Ford Fusion will continue to experience the steering fault, and the error code will reappear.
Cost of Repairing the Power Steering Assist
To replace the power steering pump on a Ford Fusion, labor costs typically range from $123 to $155, while the parts may run between $157 and $215.
For changing the power steering fluid in a Ford Fusion, the labor cost is around $95. Additional costs may arise if components like the filter and hose require replacement.
It is crucial that your mechanic exercises extreme care when adding or replacing the fluid. The introduction of the wrong fluid or an excessive amount can potentially lead to further system damage, resulting in higher repair expenses.
Nick Marchenko, PhD
Industrial Engineer & Automotive Content Specialist
Nick writes in-depth guides on car clubs, engine specs, vehicle ownership, and modifications, combining engineering knowledge with automotive passion.
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