why does my Ford Explorer make a humming noise when driving

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

477 words

Problem Statement

Learn how to diagnose and fix humming noise in Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow the vehicle to cool before working on brake components.

Symptoms

•Humming noise increases with vehicle speed
•Vibration felt through the steering wheel or floorboard
•Noise changes when turning left or right
•Decreased fuel efficiency
•Unusual tire wear patterns

Diagnostic Steps

1
Inspect the tires for uneven wear or damage.
2
Check wheel bearings for play or roughness by jacking up the vehicle and spinning the wheels.
3
Examine the driveshaft and CV joints for signs of wear or damage.
4
Listen for the noise while driving in a straight line versus turning to isolate the source.
5
Use a stethoscope or mechanic's listening device to pinpoint the location of the 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

•Socket set
•Torque wrench
•Bearing press

Parts Required

•Replacement tires (if necessary)
•Wheel bearings (if necessary)
•CV joints or driveshaft components (if necessary)

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Diagnostic Steps

1
Inspect the tires for uneven wear or damage.
2
Check wheel bearings for play or roughness by jacking up the vehicle and spinning the wheels.
3
Examine the driveshaft and CV joints for signs of wear or damage.
4
Listen for the noise while driving in a straight line versus turning to isolate the source.
5
Use a stethoscope or mechanic's listening device to pinpoint the location of the noise.

Solution

1. Preparation

Gather tools and parts.
Ensure the vehicle is parked on a level surface and secure with wheel chocks.
Disconnect the battery if working on electrical components.

2. Tire Inspection and Replacement

Sub-steps:
1. Remove the wheel from the affected side using a socket set.
2. Inspect the tire for uneven wear, bulges, or foreign objects.
3. Replace any damaged tires with new ones of the same size and specifications.

Tools Required:

Socket set
Torque wrench

3. Wheel Bearing Replacement

Sub-steps:
1. Remove the wheel and brake assembly to access the hub.
2. Inspect the wheel bearing for play; if it is damaged, proceed with replacement.
3. Press out the old bearing and press in a new bearing using a bearing press.
4. Reassemble the brake assembly and wheel, torquing to manufacturer specifications.

Tools Required:

Bearing press
Torque wrench

4. Driveshaft and CV Joint Inspection

Sub-steps:
1. Visually inspect the driveshaft and CV joints for any visible damage or leaks.
2. If damaged, remove the driveshaft by unbolting it from the transmission and rear differential.
3. Replace any damaged CV joints or driveshaft components.
4. Reinstall the driveshaft and torque bolts to manufacturer specifications.

Tools Required:

Socket set
Torque wrench