What are the signs of a failing differential in the Ford Explorer Sixth Generation?

Signs of a Failing Differential in a Sixth Generation Ford Explorer (2020-present)

The differential is a critical component in a vehicle's drivetrain, allowing for the wheels to rotate at different speeds, especially during turns. In the Ford Explorer Sixth Generation, several symptoms may indicate a failing differential:

Tools Required

• Jack and jack stands (or a hydraulic lift)
• Wrench set (metric and standard)
• Screwdriver set
• Differential fluid pump
• Fluid catch pan
• Inspection mirror
• Torque wrench
• Safety goggles and gloves
• Diagnostic scanner (optional)

Repair Instructions

Step 1: Raise the Vehicle

1. Ensure Safety: Park the vehicle on a level surface, engage the parking brake, and wear safety equipment.
2. Lift Vehicle: Use a jack to raise the vehicle and secure it on jack stands for safe access to the differential.

Step 2: Inspect Differential

1. Check for Leaks: Inspect around the differential for any signs of fluid leaks.
2. Inspect Fluid Quality: Remove the fill plug using the appropriate wrench. Check the fluid’s condition and level. If the fluid appears dark, has a burnt smell, or contains metal shavings, a fluid change or further inspection may be necessary.

Step 3: Test for Noise and Vibration

1. Run the Engine: While the vehicle is safely supported, run the engine and engage the transmission in gear. Listen for any unusual noises from the differential.
2. Check for Play: With the vehicle in gear, attempt to turn the driveshaft by hand (if accessible) to check for excessive play or unusual resistance.

Step 4: Fluid Change (If Necessary)

1. Drain Old Fluid: Place a fluid catch pan under the differential, remove the drain plug, and allow the old fluid to completely drain.
2. Replace with New Fluid: Reinstall the drain plug after draining. Use a fluid pump to fill the differential with new fluid until it reaches the fill hole.
3. Reinstall Fill Plug: Secure the fill plug to the specified torque setting.

Step 5: Reassemble and Test Drive

1. Lower Vehicle: Carefully remove jack stands and lower the vehicle.
2. Test Drive: Take the vehicle for a test drive to ensure that symptoms have been resolved.

Conclusion

If you continue to experience issues after checking the differential fluid and performing basic maintenance, it may be necessary to consult with a professional technician for further diagnosis and potential differential repair or replacement. Addressing differential issues early can prevent more severe damage and costly repairs down the line.