why does my Ford Explorer Fifth Generation (2011-2019) make a whining noise

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

597 words

Problem Statement

Learn how to diagnose and fix whining noise issues in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Steering

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is on a level surface and securely supported with jack stands before working.
•Disconnect the battery before working on electrical components.
•Allow the engine to cool before inspecting or working on the cooling system.

Symptoms

•Whining noise that increases with engine RPM
•Noise changes with vehicle speed
•Possible loss of power steering assistance
•Intermittent or consistent noise during acceleration
•Unusual vibrations felt through the steering wheel or chassis

Diagnostic Steps

1
Inspect Power Steering Fluid Level: Check the power steering fluid reservoir for proper fluid level.
2
Listen for Source of Noise: Use a mechanic's stethoscope or a long screwdriver to pinpoint the noise location.
3
Check for Fluid Leaks: Inspect under the vehicle and around power steering components for signs of fluid leaks.
4
Examine Belts and Pulleys: Inspect serpentine belt and pulleys for wear, damage, or misalignment.
5
Test Alternator Function: Measure the voltage output of the alternator while the engine is running to ensure it is functioning properly.
6
Check Wheel Bearings: Lift the vehicle and check for play in the wheel bearings by spinning the wheels and listening for noises.

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
•Power steering fluid
•Mechanic's stethoscope
•Socket set
•Torque wrench
•Belt tensioner tool

Parts Required

•Power steering pump (if needed)
•Serpentine belt (if needed)
•Alternator (if needed)
•Wheel bearings (if needed)

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Diagnostic Steps

1
Inspect Power Steering Fluid Level: Check the power steering fluid reservoir for proper fluid level.
2
Listen for Source of Noise: Use a mechanic's stethoscope or a long screwdriver to pinpoint the noise location.
3
Check for Fluid Leaks: Inspect under the vehicle and around power steering components for signs of fluid leaks.
4
Examine Belts and Pulleys: Inspect serpentine belt and pulleys for wear, damage, or misalignment.
5
Test Alternator Function: Measure the voltage output of the alternator while the engine is running to ensure it is functioning properly.
6
Check Wheel Bearings: Lift the vehicle and check for play in the wheel bearings by spinning the wheels and listening for noises.

Solution

1. Preparation

Tools Required: OBD-II scanner, power steering fluid, mechanic's stethoscope, socket set, torque wrench.
Safety Warnings: Ensure the vehicle is on a level surface and securely supported with jack stands before working.

2. Address Power Steering Issues

Check and Top Off Power Steering Fluid:
- Open the power steering fluid reservoir.
- If low, add the appropriate type of fluid (consult the owner's manual for specifications).
- Inspect for leaks if the fluid was low.
Inspect and Replace Power Steering Pump (if applicable):
- Disconnect the negative battery terminal.
- Remove the serpentine belt using a belt tensioner tool.
- Disconnect power steering lines from the pump and remove the mounting bolts.
- Install the new pump and reconnect lines, ensuring proper torque specifications are followed.

3. Replace Worn Belts or Pulleys

Inspect and Replace Serpentine Belt:
- Inspect the belt for wear, fraying, or glazing.
- If damaged, remove the belt and replace it with a new one, ensuring it is routed correctly.
Check Pulleys:
- Inspect pulleys for smooth operation; replace any that are damaged or noisy.

4. Repair or Replace Alternator

Remove and Inspect Alternator:
- Disconnect the negative battery terminal.
- Remove the serpentine belt from the alternator.
- Disconnect the wiring harness and mounting bolts.
- Replace with a new alternator if it fails the output test.

5. Address Wheel Bearings

Replace Wheel Bearings if Necessary:
- Lift the vehicle and remove the wheel.
- Remove braking components and hub assembly.
- Replace the wheel bearing and reassemble components.