my Ford F-150 Fourteenth Generation (2021-present) differential is making a grinding noise what shou...

Solution

1. Preparation

• Tools Required: Jack and jack stands, wheel chocks, socket set, drain pan, 3/8" ratchet, torque wrench, screwdriver set.
• Ensure the vehicle is parked on a level surface and the parking brake is engaged.
• Disconnect the battery to ensure safety while working on electrical systems.

2. Drain Differential Fluid

• Position a drain pan under the differential.
• Remove the differential cover bolts using a socket wrench.
• Carefully pry the cover off to drain the fluid completely.
• Inspect the fluid for metal shavings or debris indicating gear wear.

3. Inspect Gears and Bearings

• Visually examine the gears and bearings for any signs of wear or damage.
• Check the ring and pinion gears for chips or scoring.
• Rotate the gears manually to feel for roughness or binding.

4. Replace Damaged Components

• If any gears or bearings are damaged, replace them with OEM or high-quality aftermarket parts.
• Follow the manufacturer's torque specifications for gear components during reassembly.

5. Reassemble and Refill Differential

• Clean the differential cover and apply a new gasket or sealant.
• Reinstall the differential cover and torque the bolts to the specified value.
• Refill the differential with the recommended fluid type and quantity as per the owner's manual.

6. Test Drive

• Reconnect the battery and take the vehicle for a test drive to ensure the grinding noise is resolved.
• Monitor for any new sounds or issues during the drive.