how to fix Ford Explorer Sixth Generation (2020-present) transmission not shifting properly

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

522 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 shifting issues in the 2020-present Ford Explorer. 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 vehicle to cool before working on the transmission.

Symptoms

•Transmission slipping between gears
•Delayed engagement when shifting from park to drive
•Harsh or jerky shifts during acceleration
•Unusual noises during gear changes
•Check engine light illuminated
•Decreased fuel economy

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 burning.
3
Inspect the transmission wiring and connectors for damage or corrosion.
4
Test the transmission control module (TCM) for proper operation using a multimeter.
5
Perform a road test to replicate the shifting issues and monitor transmission performance.
6
Check for software updates or reprogramming requirements for the 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
•Socket set
•Torque wrench
•Multimeter
•Drain pan

Parts Required

•Transmission filter
•Transmission fluid (specific to Ford specifications)
•Gasket or sealant for transmission pan

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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 burning.
3
Inspect the transmission wiring and connectors for damage or corrosion.
4
Test the transmission control module (TCM) for proper operation using a multimeter.
5
Perform a road test to replicate the shifting issues and monitor transmission performance.
6
Check for software updates or reprogramming requirements for the TCM.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Disconnect the vehicle battery to ensure safety while working on electrical components.

2. Replace Transmission Fluid and Filter

Drain Old Fluid
- Place a drain pan under the transmission pan.
- Remove the transmission pan bolts using a socket wrench and carefully lower the pan to drain the fluid.
Replace Filter
- Remove the old transmission filter and discard it.
- Install the new transmission filter according to manufacturer specifications.
Reinstall Transmission Pan
- Clean the mating surfaces of the transmission and pan.
- Apply a new gasket or sealant as specified by the manufacturer.
- Reinstall the transmission pan and torque bolts to the manufacturer's specifications (usually around 10-12 ft-lbs).

3. Inspect and Repair Wiring

Visual Inspection
- Check the wiring harness leading to the TCM and transmission for any visible damage or wear.
Repair or Replace
- If damaged, splice in new wiring or replace the harness as needed.
- Ensure all connections are secure and free of corrosion.

4. Reprogram TCM (if necessary)

Connect Diagnostic Tool
- Use a compatible scan tool to access the TCM settings.
Follow Reprogramming Instructions
- Follow the on-screen instructions to update or reset the TCM software.
- Clear any trouble codes and disconnect the scanner.