how to fix Ford F-150 13th Generation (2015-2020) rear end noise when driving

Ford F-150 13th Generation (2015-2020)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

560 words

Problem Statement

Learn how to diagnose and fix rear end noise in Ford F-150 13th Generation (2015-2020). Step-by-step guide with symptoms, diagnostics, and repairs.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery before working on electrical systems.
•Allow the differential to cool before opening to avoid burns.
•Ensure the vehicle is securely supported on jack stands before working underneath it.

Symptoms

•Loud whining or howling noise from the rear end while driving
•Clunking sound when accelerating or decelerating
•Vibration felt in the rear of the vehicle
•Noise increases with vehicle speed
•Unusual tire wear patterns

Diagnostic Steps

1
Inspect fluid level and condition in the rear differential.
2
Check for any visible leaks around the differential and axle seals.
3
Test drive the vehicle to determine if noise correlates with vehicle speed or engine RPM.
4
Listen for noise while turning to check for potential axle or bearing issues.
5
Inspect the rear axle bearings by removing the wheel and spinning the hub.
6
Use a stethoscope or similar tool to pinpoint the source 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

•Floor jack
•Jack stands
•Socket set
•Torque wrench
•Differential fluid pump

Parts Required

•Differential gasket or sealant
•Differential fluid (as per specifications)
•Rear axle bearings (if worn)

Related Faults

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Diagnostic Steps

1
Inspect fluid level and condition in the rear differential.
2
Check for any visible leaks around the differential and axle seals.
3
Test drive the vehicle to determine if noise correlates with vehicle speed or engine RPM.
4
Listen for noise while turning to check for potential axle or bearing issues.
5
Inspect the rear axle bearings by removing the wheel and spinning the hub.
6
Use a stethoscope or similar tool to pinpoint the source of the noise.

Solution

1. Preparation

Tools Required: Floor jack, jack stands, socket set, torque wrench, differential fluid, fluid pump.
Ensure vehicle is on a level surface and secure with wheel chocks.
Disconnect the battery to prevent any electrical issues while working.

2. Inspect and Replace Differential Fluid

Sub-steps:
1. Raise the rear of the vehicle using a floor jack and secure it with jack stands.
2. Locate the differential cover and remove the bolts using a socket set.
3. Allow the old fluid to drain into a pan.
4. Clean the differential cover and the mating surface on the differential housing.
5. Reinstall the cover with a new gasket or sealant, and torque the bolts to manufacturer specifications.
6. Fill the differential with new fluid using a fluid pump until it reaches the fill plug level.

3. Inspect and Replace Rear Axle Bearings

Sub-steps:
1. Remove the rear wheels using a socket set.
2. Remove the brake caliper and rotor to access the axle housing.
3. Remove the axle retaining bolts and carefully slide out the axle shaft.
4. Inspect the axle bearings for wear or damage.
5. Replace worn bearings with new ones, ensuring proper alignment.
6. Reassemble the axle and brake components in reverse order.

4. Test Drive

After repairs, lower the vehicle and reconnect the battery.
Conduct a test drive to ensure the noise has been resolved.