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

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

Error Codes

3-5 hours

Time

medium

Difficulty

medium

Severity

3 min read

551 words

Problem Statement

Learn how to diagnose and fix rear differential noise in Ford F-150 13th Generation (2015-2020). Step-by-step guide with tools and procedures.

Affected Component

Suspension

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is securely supported on jack stands before working underneath.
•Use gloves and eye protection when handling fluids and components.

Symptoms

•Grinding or whining noise during acceleration or deceleration
•Clunking noise when shifting from drive to reverse
•Vibration felt through the floor or seats
•Fluid leakage around the differential housing
•Decreased traction or handling issues

Diagnostic Steps

1
Inspect the rear differential fluid level and condition.
2
Check for metal shavings or debris in the differential fluid.
3
Listen for noise while turning in both directions to isolate the sound source.
4
Visually inspect the differential housing for cracks or damage.
5
Examine the driveshaft and universal joints for wear or play.
6
Test drive the vehicle to replicate the noise under varied conditions.

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
•OBD-II scanner

Parts Required

•Differential fluid (75W-140 synthetic gear oil)
•Differential gasket or gasket material
•Replacement bearings or gears (if damaged)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the rear differential fluid level and condition.
2
Check for metal shavings or debris in the differential fluid.
3
Listen for noise while turning in both directions to isolate the sound source.
4
Visually inspect the differential housing for cracks or damage.
5
Examine the driveshaft and universal joints for wear or play.
6
Test drive the vehicle to replicate the noise under varied conditions.

Solution

1. Preparation

Tools Required: Floor jack, jack stands, socket set, torque wrench, differential fluid pump, OBD-II scanner.
Raise the rear of the vehicle using a floor jack and secure it on jack stands.
Place wheel chocks in front of the front tires to prevent movement.

2. Drain Differential Fluid

Sub-steps:
1. Place a drain pan under the rear differential.
2. Remove the differential cover bolts using a socket set.
3. Carefully pry the cover off and allow the fluid to drain completely.

3. Inspect Components

Sub-steps:
1. Check the ring and pinion gears for wear or damage.
2. Inspect the differential bearings for play or roughness.
3. Examine the carrier and spider gears for any signs of wear or breakage.

4. Replace Damaged Components

Sub-steps:
1. If any components are worn, replace them with OEM parts.
2. Remove old bearings using a bearing puller, if necessary.
3. Install new bearings and shims according to manufacturer specifications.

5. Reassemble Differential

Sub-steps:
1. Clean the differential cover and mating surface thoroughly.
2. Apply new gasket material or a gasket as required.
3. Reattach the differential cover and torque the bolts to the manufacturer’s specifications (typically around 30-40 ft-lbs).

6. Refill Differential with Fluid

Sub-steps:
1. Use a differential fluid pump to fill the differential with the specified fluid (typically 75W-140 synthetic gear oil).
2. Fill until the fluid reaches the fill hole.
3. Reinstall the fill plug and torque to specifications.