why does my Ford Explorer make a whirring noise when I accelerate?

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 whirring noise when accelerating in Ford Explorer. 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

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before inspecting or working on components.

Symptoms

•Whirring noise increases with acceleration
•Noise is most prominent during high RPMs
•Possible vibration felt through the floor or steering wheel
•Changes in vehicle performance or responsiveness
•Potential fluid leaks under the vehicle

Diagnostic Steps

1
Inspect the engine bay for loose components or worn belts.
2
Check for error codes using an OBD-II scanner to identify any related engine issues.
3
Examine the transmission fluid level and condition.
4
Test drive the vehicle to match the noise with specific RPMs and acceleration patterns.
5
Inspect the differential and driveshaft for wear or damage.
6
Verify tire condition and balance to rule out external noise sources.

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 dipstick
•Funnel
•Drain pan
•Jack
•Jack stands
•Torque wrench

Parts Required

•Serpentine belt
•Transmission fluid
•Universal joints (if needed)
•Differential fluid (if needed)

Related Faults

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Diagnostic Steps

1
Inspect the engine bay for loose components or worn belts.
2
Check for error codes using an OBD-II scanner to identify any related engine issues.
3
Examine the transmission fluid level and condition.
4
Test drive the vehicle to match the noise with specific RPMs and acceleration patterns.
5
Inspect the differential and driveshaft for wear or damage.
6
Verify tire condition and balance to rule out external noise sources.

Solution

1. Preparation

Gather tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery to prevent electrical issues while working.

2. Inspect and Replace Drive Belts

Tools Required: Socket set, belt tensioner tool, flashlight.
Remove the engine cover if applicable.
Check the condition of the serpentine belt for cracks or wear.
If damaged, release tension using the belt tensioner tool and remove the old belt.
Install a new serpentine belt, ensuring it is properly routed according to the vehicle's diagram.
Reconnect the battery.

3. Check and Replace Transmission Fluid

Tools Required: Transmission fluid dipstick, funnel, drain pan.
Remove the transmission dipstick and check fluid level and condition (should be red and not burnt).
If low, add the correct type of transmission fluid as specified in the owner's manual.
If the fluid is burnt or contaminated, drain the transmission fluid using a drain pan and replace it with new fluid.
Recheck fluid level after driving the vehicle.

4. Inspect Driveshaft and Differential

Tools Required: Jack, jack stands, torque wrench.
Lift the vehicle using a jack and secure it with jack stands.
Inspect the driveshaft for any signs of damage or wear, such as dents or rust.
Check the universal joints for play or damage.
If any issues are found, replace the driveshaft or universal joints as necessary.
Inspect the differential fluid level and condition, replacing if necessary.