why is my Ford Explorer Fifth Generation (2011-2019) making a whining noise when driving

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

529 words

Problem Statement

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

Affected Component

Drivetrain

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always ensure the vehicle is securely supported on jack stands before working underneath
•Allow the engine to cool before inspecting components near the engine block

Symptoms

•Whining noise that increases with vehicle speed
•Noise occurs during acceleration and may diminish at cruising speed
•Possible vibration felt through the steering wheel
•Fluctuation in engine RPMs while driving
•Decreased fuel efficiency

Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect the serpentine belt for signs of wear, fraying, or damage
3
Verify the levels and condition of the transmission fluid and power steering fluid
4
Listen closely to identify if the noise is coming from the engine compartment, drivetrain, or wheel area
5
Jack up the vehicle and check for play in the wheel bearings or any unusual sounds while spinning the wheels
6
Check for any external leaks or damage to the transmission casing

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
•Jack and jack stands
•Socket set
•Multimeter
•Flashlight

Parts Required

•Serpentine belt
•Transmission fluid (Mercon LV)
•Transmission filter (if applicable)
•Wheel bearings (if defective)

Related Faults

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Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect the serpentine belt for signs of wear, fraying, or damage
3
Verify the levels and condition of the transmission fluid and power steering fluid
4
Listen closely to identify if the noise is coming from the engine compartment, drivetrain, or wheel area
5
Jack up the vehicle and check for play in the wheel bearings or any unusual sounds while spinning the wheels
6
Check for any external leaks or damage to the transmission casing

Solution

1. Preparation

Tools Required: OBD-II scanner, jack and jack stands, socket set, multimeter, flashlight
Safety Warnings: Always ensure the vehicle is securely supported on jack stands before working underneath.

2. Replace Serpentine Belt (if worn)

Remove components obstructing access to the serpentine belt (if necessary).
Use a wrench to relieve tension on the serpentine belt tensioner and remove the belt.
Install a new serpentine belt following the manufacturer’s routing diagram.
Re-check belt tension after installation.

3. Change Transmission Fluid (if low or contaminated)

Drain the transmission fluid using a socket set to remove the drain plug.
Replace the transmission filter if applicable.
Refill with new transmission fluid as specified in the owner’s manual (typically Mercon LV for Ford).
Ensure fluid levels are correct by checking the dipstick after filling.

4. Inspect and Replace Wheel Bearings (if faulty)

Remove the wheel using a socket set.
Inspect the wheel bearings for noise and play; if damaged, replace them.
Reassemble components and ensure everything is torqued to manufacturer specifications.