why is my Ford Explorer Sixth Generation (2020-present) rear end making noise

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

603 words

Problem Statement

Learn how to diagnose and fix rear end noise in Ford Explorer Sixth Generation (2020-present). 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

•Ensure the vehicle is properly supported on jack stands before working underneath.
•Disconnect the battery before working on electrical systems.
•Allow the vehicle to cool before working on any components related to the exhaust or brakes.

Symptoms

•Grinding or whining noise from the rear end
•Clunking sound during acceleration or deceleration
•Vibration felt through the cabin or steering wheel
•Unusual tire wear
•Fluid leaks around the differential or rear axle

Diagnostic Steps

1
Inspect the differential fluid level and condition.
2
Check for any visible leaks or damage around the rear axle and differential.
3
Perform a visual inspection of the suspension components for wear or damage.
4
Test drive the vehicle to replicate the noise and determine its characteristics (e.g., speed-related, turning-related).
5
Check wheel bearings by lifting the vehicle and spinning the wheels to listen for noise or roughness.
6
Inspect the rear tires for uneven wear patterns that may indicate alignment or suspension issues.

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
•Drain pan
•Gasket scraper
•Torque wrench
•Lug wrench
•Bearing puller

Parts Required

•Differential fluid
•Wheel bearings
•Suspension components (if needed)

Related Faults

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Diagnostic Steps

1
Inspect the differential fluid level and condition.
2
Check for any visible leaks or damage around the rear axle and differential.
3
Perform a visual inspection of the suspension components for wear or damage.
4
Test drive the vehicle to replicate the noise and determine its characteristics (e.g., speed-related, turning-related).
5
Check wheel bearings by lifting the vehicle and spinning the wheels to listen for noise or roughness.
6
Inspect the rear tires for uneven wear patterns that may indicate alignment or suspension issues.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery if working on electrical components.

2. Inspect and Replace Differential Fluid

Sub-steps:
1. Place a drain pan under the differential.
2. Remove the differential cover bolts using a socket wrench and carefully remove the cover to access the fluid.
3. Inspect the fluid for metal shavings or discoloration; replace if contaminated.
4. Clean the differential cover surface and replace the gasket if necessary.
5. Refill the differential with the recommended fluid until it reaches the fill plug level.
Tools Required: Socket set, drain pan, gasket scraper, torque wrench
Safety Warnings: Ensure the vehicle is properly supported on jack stands before working underneath.

3. Inspect and Replace Wheel Bearings

Sub-steps:
1. Lift the rear of the vehicle and secure it on jack stands.
2. Remove the rear wheels using a lug wrench.
3. Inspect the wheel bearings by spinning the hub; listen for noise or roughness.
4. If noise is present, remove the brake assembly and hub to access the bearings.
5. Replace the wheel bearings with new, OEM or high-quality aftermarket parts.
6. Reassemble the wheel assembly and lower the vehicle.
Tools Required: Lug wrench, socket set, bearing puller, torque wrench
Safety Warnings: Ensure the vehicle is stable on jack stands before removing wheels.

4. Inspect Suspension Components

Sub-steps:
1. Check all rear suspension components, including control arms, bushings, and shocks for signs of wear or damage.
2. Replace any worn or damaged components with OEM parts.
3. Ensure all hardware is torqued to manufacturer specifications when reassembling.
Tools Required: Socket set, torque wrench
Safety Warnings: Always ensure the vehicle is securely lifted and supported.