why does my Ford Explorer Sixth Generation (2020-present) transmission slip when I accelerate

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

568 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 (2020-present). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

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

Symptoms

•Transmission slips during acceleration
•RPMs increase without corresponding vehicle speed increase
•Delayed or harsh shifting
•Check engine light illuminated
•Fluid leaks under the vehicle
•Unusual noises (grinding or whining) from the transmission area

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related faults.
2
Check transmission fluid level and condition; look for signs of contamination or burning.
3
Inspect the transmission fluid cooler for leaks or blockages.
4
Test the transmission solenoids for proper operation using a multimeter.
5
Visually inspect the transmission for any signs of external damage or wear.
6
Check for software updates or recalls related to the transmission control module (TCM).

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
•Transmission fluid pump
•Funnel
•Catch pan

Parts Required

•Transmission fluid
•Transmission filter (if applicable)
•Transmission solenoids (if faulty)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related faults.
2
Check transmission fluid level and condition; look for signs of contamination or burning.
3
Inspect the transmission fluid cooler for leaks or blockages.
4
Test the transmission solenoids for proper operation using a multimeter.
5
Visually inspect the transmission for any signs of external damage or wear.
6
Check for software updates or recalls related to the transmission control module (TCM).

Solution

1. Preparation

Park the vehicle on a level surface and engage the parking brake.
Gather necessary tools and parts.
Disconnect the negative battery cable to prevent any electrical shorts.

2. Check and Replace Transmission Fluid

Tools Required: Transmission fluid pump, funnel, catch pan, socket set.
Remove the transmission pan bolts using the socket set.
Carefully lower the pan and drain the old fluid into the catch pan.
Inspect the pan for metal shavings or debris; clean it before reinstallation.
Replace the transmission filter if applicable.
Refill the transmission with the manufacturer-recommended fluid using a transmission fluid pump and funnel.
Torque the pan bolts to the manufacturer's specifications.

3. Inspect and Test Transmission Solenoids

Tools Required: Multimeter, socket set.
Remove the transmission control module (if necessary) to access the solenoids.
Disconnect the electrical connectors from the solenoids.
Use the multimeter to check the resistance of each solenoid; compare with manufacturer specifications.
Replace any faulty solenoids with new ones.

4. Update Transmission Control Module Software

Tools Required: OBD-II scanner with programming capabilities.
Connect the OBD-II scanner to the vehicle's diagnostic port.
Check for available software updates and apply them as necessary.
Clear any error codes and disconnect the scanner.

5. Reassemble and Test

Reinstall any components that were removed, ensuring all electrical connectors are secure.
Reconnect the negative battery cable.
Start the vehicle and allow it to reach operating temperature.
Test drive the vehicle to ensure the transmission operates smoothly without slipping.