how to fix electric steering assist problem in my Ford F-150

Ford F-150 13th Generation (2015-2020)

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

3 min read

588 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix electric steering assist problems in Ford F-150. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Steering

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components to prevent shock or short circuits
•Allow the vehicle to cool down before accessing any components that may have been heated during operation

Symptoms

•Steering feels heavy or unresponsive
•Illuminated power steering warning light on the dashboard
•Whirring or grinding noise when turning the steering wheel
•Difficulty returning to center after making a turn
•Intermittent steering assistance loss while driving

Diagnostic Steps

1
Scan the vehicle’s computer using an OBD-II scanner to check for any diagnostic trouble codes (DTCs)
2
Inspect the power steering fluid level and condition, ensuring it is at the correct level and not contaminated
3
Examine the wiring harness and connectors for any signs of damage or corrosion
4
Test the power steering motor with a multimeter to assess voltage and ground integrity
5
Check the steering angle sensor for proper function and calibration
6
Inspect the rack and pinion assembly for wear or damage that may affect steering assist

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Multimeter
•Socket set
•Torque wrench
•Fluid extraction tool
•Funnel
•Wire strippers
•Electrical tape
•Connectors

Parts Required

•Power steering fluid
•Power steering motor (if needed)
•Electrical connectors (if needed)

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Diagnostic Steps

1
Scan the vehicle’s computer using an OBD-II scanner to check for any diagnostic trouble codes (DTCs)
2
Inspect the power steering fluid level and condition, ensuring it is at the correct level and not contaminated
3
Examine the wiring harness and connectors for any signs of damage or corrosion
4
Test the power steering motor with a multimeter to assess voltage and ground integrity
5
Check the steering angle sensor for proper function and calibration
6
Inspect the rack and pinion assembly for wear or damage that may affect steering assist

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative battery terminal to ensure safety.
Raise the front of the vehicle and secure it on jack stands for easier access to the steering components.

2. Inspect and Replace Power Steering Fluid

Sub-steps:
- Remove the power steering fluid reservoir cap.
- If fluid is low, top it off with the recommended type of power steering fluid (consult the owner's manual).
- If fluid is contaminated, proceed to drain and replace it.
Tools Required: Fluid extraction tool, funnel.

3. Repair or Replace Wiring Harness

Sub-steps:
- Identify damaged wiring or connectors from the power steering motor to the vehicle's harness.
- Repair any frayed wires with electrical tape or replace sections of the harness as necessary.
- Ensure all connectors are clean and securely attached.
Tools Required: Wire strippers, electrical tape, connectors.

4. Replace Power Steering Motor (if necessary)

Sub-steps:
- Disconnect the power steering motor from the steering gear assembly.
- Unplug electrical connectors to the motor.
- Remove any mounting bolts securing the motor and carefully detach it.
- Install the new power steering motor, ensuring it aligns correctly and is securely fastened.
- Reconnect the electrical connectors.
Torque specifications: Follow manufacturer guidelines for the motor mounting bolts.
Tools Required: Socket set, torque wrench.

5. Reconnect Battery and Test

Reconnect the negative battery terminal.
Start the vehicle and turn the steering wheel from lock to lock to bleed air from the system.
Check for any leaks around the steering components.