how to maintain the 4WD system in my Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

568 words

Problem Statement

Learn how to maintain the 4WD system in your Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Allow the vehicle to cool before working on the drivetrain components.
•Ensure the vehicle is securely lifted if working underneath.

Symptoms

•Difficulty engaging or disengaging the 4WD system
•Unusual noises when 4WD is engaged
•Vibration during operation
•Warning lights illuminated on the dashboard
•Reduced traction or handling in slippery conditions

Diagnostic Steps

1
Inspect the 4WD control switch for any signs of damage or malfunction.
2
Check the transfer case fluid level and condition; look for contamination or metal shavings.
3
Examine the driveshafts and CV joints for wear or damage.
4
Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs) related to the 4WD system.
5
Test the 4WD system operation in different modes (e.g., 2WD, 4WD Auto, 4WD Low) to confirm functionality.
6
Inspect the front and rear differential fluid levels and 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

•Socket set
•Torque wrench
•Fluid pump
•OBD-II scanner
•Safety gloves
•Safety goggles

Parts Required

•Transfer case fluid
•Differential fluid
•Replacement seals or gaskets

Related Faults

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Diagnostic Steps

1
Inspect the 4WD control switch for any signs of damage or malfunction.
2
Check the transfer case fluid level and condition; look for contamination or metal shavings.
3
Examine the driveshafts and CV joints for wear or damage.
4
Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs) related to the 4WD system.
5
Test the 4WD system operation in different modes (e.g., 2WD, 4WD Auto, 4WD Low) to confirm functionality.
6
Inspect the front and rear differential fluid levels and conditions.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the engine is off.
Wear safety gloves and goggles.

2. Fluid Change

Transfer Case Fluid:
1. Locate the transfer case drain and fill plugs.
2. Remove the drain plug and allow the old fluid to drain completely.
3. Replace the drain plug and torque it to manufacturer specifications.
4. Remove the fill plug and use a pump to fill the transfer case with new fluid until it starts to drip from the fill hole.
5. Replace the fill plug and torque it to specifications.
Differential Fluid:
1. Locate the differential drain and fill plugs for both front and rear differentials.
2. Remove the drain plugs and allow the old fluid to drain completely.
3. Replace the drain plugs and torque them to specifications.
4. Use a pump to fill the differentials with new fluid until it starts to drip from the fill hole.
5. Replace the fill plugs and torque them to specifications.

3. Inspect and Clean Components

Inspect the 4WD control switch for any signs of damage or wear.
Clean any debris or corrosion from electrical connectors related to the 4WD system.
Check the driveshafts and CV joints; replace any damaged components.

4. Test System Functionality

Start the vehicle and engage the 4WD system.
Test all modes (2WD, 4WD Auto, 4WD Low) to ensure smooth operation without unusual noises.
Ensure all warning lights are off after testing.