how to fix Ford Explorer Sixth Generation (2020-present) transmission slipping issue

Ford Explorer Sixth Generation (2020-present)

Error Codes

3-5 hours

Time

medium

Difficulty

high

Severity

3 min read

554 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 diagnose and fix transmission slipping issues in Ford Explorer Sixth Generation (2020-present). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Transmission

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before working on the transmission to avoid burns.

Symptoms

•Transmission hesitates or delays when shifting gears
•Unusual engine revving without corresponding acceleration
•Check engine light illuminated
•Fluid leaks under the vehicle
•Poor fuel economy
•Unpleasant burning smell from the transmission

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify transmission-related codes.
2
Check the transmission fluid level and condition; look for signs of contamination or burnt smell.
3
Inspect the transmission fluid cooler lines for leaks or damage.
4
Check the transmission filter for clogs or restrictions.
5
Perform a visual inspection of the transmission wiring harness and connectors for corrosion or damage.
6
Test the transmission control module (TCM) for proper function.

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
•Transmission fluid pump
•Multimeter

Parts Required

•Transmission fluid (manufacturer-recommended type)
•Transmission filter
•Gasket for transmission pan

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify transmission-related codes.
2
Check the transmission fluid level and condition; look for signs of contamination or burnt smell.
3
Inspect the transmission fluid cooler lines for leaks or damage.
4
Check the transmission filter for clogs or restrictions.
5
Perform a visual inspection of the transmission wiring harness and connectors for corrosion or damage.
6
Test the transmission control module (TCM) for proper function.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery to ensure safety while working.

2. Fluid Inspection and Replacement

Tools Required: Transmission fluid pump, 8mm socket wrench, funnel, clean cloths.
Remove the transmission dipstick and check fluid level.
If low, add manufacturer-recommended transmission fluid to the correct level.
If fluid is contaminated, drain the old fluid by removing the drain plug and let it flow into a catch pan.
Replace the old fluid with new transmission fluid using a pump.
Reinstall the drain plug and check for any leaks.

3. Filter Replacement

Tools Required: Socket set, torque wrench, new transmission filter, gasket.
Remove the transmission pan by unscrewing the retaining bolts (torque to manufacturer's specifications when reassembling).
Carefully lower the pan and remove the old filter.
Install the new filter and ensure it is seated properly.
Replace the pan with a new gasket and reattach it with the correct torque.

4. Electrical Inspection and Repair

Tools Required: Multimeter, wiring harness repair tools.
Inspect the wiring harness for any damage or corrosion.
If necessary, repair or replace damaged wiring and connectors.
Test the TCM with a multimeter to ensure it is functioning correctly.

5. Reconnect and Test

Reconnect the battery.
Start the vehicle and allow it to reach operating temperature.
Check for leaks and ensure the transmission shifts smoothly through all gears.