how to fix a 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

560 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 system to avoid burns.

Symptoms

•Check engine light illuminated
•Erratic or delayed shifting
•Engine revving without corresponding acceleration
•Unusual noises during shifting (grinding or whining)
•Poor fuel economy
•Transmission fluid leaks

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related trouble codes.
2
Check the transmission fluid level and condition; look for signs of contamination or burnt smell.
3
Inspect the transmission fluid lines and cooler for leaks or damage.
4
Verify the operation of the transmission control module (TCM) using a multimeter.
5
Conduct a road test to replicate the slipping issue and observe shifting behavior under various driving 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

•OBD-II scanner
•Multimeter
•Socket set
•Screwdrivers
•Funnel
•Transmission fluid pump

Parts Required

•Mercon ULV transmission fluid
•Transmission filter
•Gasket for transmission pan
•Transmission Control Module (if necessary)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related trouble codes.
2
Check the transmission fluid level and condition; look for signs of contamination or burnt smell.
3
Inspect the transmission fluid lines and cooler for leaks or damage.
4
Verify the operation of the transmission control module (TCM) using a multimeter.
5
Conduct a road test to replicate the slipping issue and observe shifting behavior under various driving conditions.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and secured with wheel chocks.
Disconnect the battery to prevent electrical short circuits.

2. Check and Replace Transmission Fluid

Tools Required: Funnel, transmission fluid pump, clean rags
Remove the transmission dipstick and check fluid level. If low, add the appropriate type of Ford transmission fluid (Mercon ULV).
If fluid is discolored or smells burnt, perform a complete fluid change by draining old fluid from the transmission pan.
Refill with new transmission fluid through the dipstick tube using a funnel.

3. Inspect and Replace Transmission Filter

Tools Required: Socket set, screwdriver, gasket scraper
Remove the transmission pan by loosening the bolts with a socket wrench. Be prepared for fluid spillage.
Take out the old transmission filter and replace it with a new one, ensuring proper alignment.
Clean the transmission pan and replace the gasket to prevent leaks. Reattach the pan with specified torque.

4. Check and Repair Transmission Control Module (TCM)

Tools Required: Multimeter, diagnostic scanner
Inspect the wiring harness connected to the TCM for any signs of wear or damage.
If necessary, replace the TCM based on diagnostic findings. Reprogram the new TCM using a diagnostic scanner if required.

5. Test Drive and Final Checks

Reconnect the battery and start the engine.
Allow the transmission to warm up, then perform a test drive to confirm the issue has been resolved.
Check for leaks under the vehicle after the test drive.