how to identify transfer case issues in Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

561 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to identify and fix transfer case issues in Ford Explorer Fifth Generation (2011-2019). Step-by-step diagnostic and repair guide.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before starting work on electrical components
•Allow the transfer case to cool down before handling to prevent burns

Symptoms

•Failure to engage all-wheel drive (AWD) mode
•Strange noises (grinding or clunking) when accelerating
•Vibration or shuddering during shifts
•Warning lights illuminated on the dashboard (such as the AWD light)
•Fluid leaks under the vehicle
•Difficulty shifting between 2WD and AWD

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any transfer case-related fault codes
2
Inspect the transfer case fluid level and condition by checking the fill plug; look for contaminants or a burnt smell
3
Visually inspect the transfer case for leaks around seals and gaskets
4
Listen for unusual sounds while the vehicle is in motion, especially during acceleration or while shifting
5
Test the operation of the transfer case actuator to ensure it is functioning properly
6
Check the transfer case control module for any electrical issues or malfunctioning sensors

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

•OBD-II scanner
•Socket set
•Torque wrench
•Multimeter
•Fluid pump

Parts Required

•Transfer case fluid (specific to model)
•Transfer case seals/gaskets (if needed)
•Transfer case actuator (if malfunctioning)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any transfer case-related fault codes
2
Inspect the transfer case fluid level and condition by checking the fill plug; look for contaminants or a burnt smell
3
Visually inspect the transfer case for leaks around seals and gaskets
4
Listen for unusual sounds while the vehicle is in motion, especially during acceleration or while shifting
5
Test the operation of the transfer case actuator to ensure it is functioning properly
6
Check the transfer case control module for any electrical issues or malfunctioning sensors

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a level surface and secure it with wheel chocks.
Disconnect the negative battery terminal to prevent electrical shock.

2. Fluid Change

Remove the drain plug on the transfer case using a socket wrench.
Allow old fluid to drain completely into a suitable container.
Replace the drain plug, ensuring a proper seal.
Remove the fill plug and pour in new transfer case fluid (consult owner’s manual for the specific type).
Replace the fill plug and torque it to the manufacturer's specifications.

3. Inspect and Replace Seals/Gaskets (if leaking)

Remove the transfer case from the vehicle by disconnecting the driveshafts and any electrical connectors.
Carefully disassemble the transfer case to access seals and gaskets.
Replace any worn or damaged seals/gaskets with new OEM parts.
Reassemble the transfer case ensuring all components fit correctly.

4. Test the Transfer Case Actuator

Reconnect the electrical connectors to the actuator.
Test the actuator operation using a multimeter or appropriate diagnostic tool.
Replace the actuator if it is not functioning properly.

5. Reinstallation

Reinstall the transfer case in reverse order of removal.
Reconnect the driveshafts and electrical connectors.
Reconnect the negative battery terminal and ensure all connections are secure.