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

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

602 words

Problem Statement

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

Affected Component

Transmission

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 fluid reservoirs

Symptoms

•Whining or high-pitched noise increases with acceleration
•Noise is more pronounced when the vehicle is under load
•Possible vibrations felt through the steering wheel or chassis
•Decreased fuel efficiency
•Check engine light may be illuminated

Diagnostic Steps

1
Inspect the serpentine belt for wear or damage
2
Check for any fluid leaks from the transmission or differential
3
Use an OBD-II scanner to check for any error codes related to the transmission or engine
4
Listen carefully to determine if the noise is coming from the engine, transmission, or differential
5
Inspect the transmission fluid condition and level
6
Check the wheel bearings for play or noise

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
•Socket set
•Belt tensioner tool
•Transmission fluid pump
•Fluid catch pan
•Funnel
•Jack
•Jack stands

Parts Required

•Serpentine belt
•Transmission fluid
•Differential fluid
•Wheel bearings

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the serpentine belt for wear or damage
2
Check for any fluid leaks from the transmission or differential
3
Use an OBD-II scanner to check for any error codes related to the transmission or engine
4
Listen carefully to determine if the noise is coming from the engine, transmission, or differential
5
Inspect the transmission fluid condition and level
6
Check the wheel bearings for play or noise

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is off.

2. Inspect and Replace Serpentine Belt

Tools Required: Socket set, belt tensioner tool.
Sub-steps:
1. Locate the serpentine belt routing diagram (usually on the engine cover).
2. Using the belt tensioner tool, relieve tension from the belt and remove it from the pulleys.
3. Inspect the belt for cracks, fraying, or glazing.
4. If damaged, replace with a new serpentine belt, ensuring proper alignment on all pulleys.

3. Check and Replace Transmission Fluid

Tools Required: Transmission fluid pump, fluid catch pan, funnel.
Sub-steps:
1. Locate the transmission dipstick or access port.
2. Remove the dipstick and check fluid level; add fluid if low.
3. If the fluid is dark or burnt, drain the transmission fluid using the catch pan.
4. Replace fluid with recommended type (check owner’s manual for specifications).
5. Recheck fluid level after replacing.

4. Inspect Differential Fluid

Tools Required: Socket set, fluid catch pan.
Sub-steps:
1. Locate the differential fill plug and remove it.
2. Check the fluid level; add fluid if necessary.
3. If the fluid appears dirty or has a burnt smell, drain and replace it with the recommended differential fluid.

5. Inspect Wheel Bearings

Tools Required: Jack, jack stands, socket set.
Sub-steps:
1. Safely lift the vehicle using a jack and support with jack stands.
2. Remove the wheel and inspect the wheel bearings for play by shaking the rotor.
3. If there is excessive play or noise, replace the wheel bearings following manufacturer specifications.