what causes the electric power steering to fail in a Ford F-150

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

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

3 min read

562 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 power steering failure 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 systems.
•Allow the engine to cool before opening any components related to the steering system.

Symptoms

•Steering wheel becomes difficult to turn or stiff
•Warning light illuminated on the dashboard
•Whining or grinding noise while steering
•Intermittent loss of power steering assist
•Vibration or shuddering in the steering wheel
•Steering wheel position sensor failure

Diagnostic Steps

1
Scan the vehicle's onboard diagnostic system using an OBD-II scanner to check for any error codes related to the EPS system.
2
Inspect the electrical connections to the EPS motor for loose or corroded wiring.
3
Check the EPS control module for signs of damage or failure.
4
Verify the power supply to the EPS system, ensuring voltage levels are within specifications.
5
Examine the steering column and rack for any mechanical binding or damage.
6
Test the EPS motor functionality by performing a bench test or using a multimeter to check resistance.

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
•Basic hand tools
•Socket set
•Torque wrench
•Steering wheel puller

Parts Required

•EPS control module (if defective)
•EPS motor (if defective)
•Electrical connectors (if damaged)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan the vehicle's onboard diagnostic system using an OBD-II scanner to check for any error codes related to the EPS system.
2
Inspect the electrical connections to the EPS motor for loose or corroded wiring.
3
Check the EPS control module for signs of damage or failure.
4
Verify the power supply to the EPS system, ensuring voltage levels are within specifications.
5
Examine the steering column and rack for any mechanical binding or damage.
6
Test the EPS motor functionality by performing a bench test or using a multimeter to check resistance.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle battery to prevent electrical shorts.
Allow the vehicle to cool down if it has been running.

2. Inspect Electrical Connections

Tools Required: Multimeter, basic hand tools
Check all harness connections to the EPS motor and control module.
Clean any corrosion using electrical contact cleaner.
Tighten loose connections and replace any damaged connectors.

3. Replace EPS Control Module (if needed)

Tools Required: Socket set, torque wrench
Remove the dashboard or any trim pieces obstructing access to the EPS control module.
Disconnect the module's electrical connectors.
Unbolt the module from its mounting location.
Install the new module by reversing the removal steps and ensuring all connections are secure.
Torque the module bolts to the manufacturer's specifications.

4. Replace EPS Motor (if needed)

Tools Required: Socket set, torque wrench, steering wheel puller
Disconnect the battery again for safety.
Remove the steering wheel using a steering wheel puller.
Unbolt and disconnect the EPS motor from the steering column.
Install the new EPS motor, ensuring it is aligned correctly.
Reassemble the steering wheel and other components, torquing to specifications.

5. Final Assembly

Reconnect the vehicle battery.
Ensure all components are secured and check for any leftover tools or parts before starting the vehicle.