why does my Ford Explorer Fifth Generation (2011-2019) power steering pump whine when turning

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

564 words

Problem Statement

Learn how to diagnose and fix a whining power steering pump in a 2011-2019 Ford Explorer. 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.

Symptoms

•Whining noise when turning the steering wheel
•Difficulty steering or increased effort required
•Fluid leaks around the power steering pump
•Low power steering fluid level
•Steering wheel vibrations
•Steering responsiveness is reduced

Diagnostic Steps

1
Inspect the power steering fluid level and condition; top off if necessary.
2
Check for any visible leaks in the power steering hoses and connections.
3
Listen closely to the power steering pump while turning the steering wheel to isolate the noise.
4
Use a multimeter to check the voltage at the power steering pump if electronically controlled.
5
Inspect the drive belt for wear, tension, and proper alignment.
6
Scan for any stored DTCs (Diagnostic Trouble Codes) that might relate to the steering system.

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
•Wrench set
•Torque wrench
•Funnel
•Siphon or turkey baster

Parts Required

•Power steering fluid
•Power steering pump (if needed)
•New power steering hoses (if leaks are found)

Related Faults

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Diagnostic Steps

1
Inspect the power steering fluid level and condition; top off if necessary.
2
Check for any visible leaks in the power steering hoses and connections.
3
Listen closely to the power steering pump while turning the steering wheel to isolate the noise.
4
Use a multimeter to check the voltage at the power steering pump if electronically controlled.
5
Inspect the drive belt for wear, tension, and proper alignment.
6
Scan for any stored DTCs (Diagnostic Trouble Codes) that might relate to the steering system.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure safety by disconnecting the battery.
Allow the engine to cool before working on the steering components.

2. Check and Replace Power Steering Fluid

Tools Required: Funnel, power steering fluid
Inspect the power steering fluid; if it is low or dirty, drain the old fluid.
- Locate the power steering reservoir and remove the cap.
- Use a siphon or turkey baster to remove old fluid.
- Refill with the manufacturer-recommended power steering fluid.
- Replace the cap securely.

3. Inspect and Replace Power Steering Pump (if necessary)

Tools Required: Socket set, wrench set, torque wrench
If the pump is confirmed to be the source of the noise:
- Remove the serpentine belt from the power steering pump.
- Disconnect the power steering lines from the pump; use a container to catch any leaking fluid.
- Unbolt the power steering pump from its mounting bracket.
- Install the new power steering pump, tightening bolts to manufacturer specifications (usually around 18-25 ft-lbs).
- Reconnect the power steering lines and ensure they are secure and free of leaks.

4. Reassemble and Test

Reinstall the serpentine belt, ensuring it is properly aligned on all pulleys.
Reconnect the battery.
Start the engine and turn the steering wheel from lock to lock to bleed any air from the system.
Check for leaks and listen for any abnormal noises.