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

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

472 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 troubleshoot and fix transmission slipping in Ford Explorer (2020-present). Step-by-step guide with diagnostic 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 engine to cool before opening any components to avoid burns from hot fluids.

Symptoms

•Engine revs without corresponding increase in speed
•Delayed or harsh shifting between gears
•Transmission warning light illuminated on the dashboard
•Unusual noises when shifting (e.g., whining or clunking)
•Sudden loss of power during acceleration
•Fluid leaks under the vehicle

Diagnostic Steps

1
Scan the vehicle's onboard computer using an OBD-II scanner to check for any transmission-related error codes.
2
Inspect the transmission fluid level and condition; look for burnt smell or metal particles.
3
Check for any visible leaks in the transmission area, including seals and gaskets.
4
Inspect the transmission fluid lines for damage or blockages.
5
Test drive the vehicle to replicate the slipping issue and observe under what conditions it occurs.
6
Perform a visual inspection of the transmission control module (TCM) connections and wiring for any corrosion or damage.

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 (if needed)
•Fluid catch pan

Parts Required

•Transmission fluid (Mercon ULV)
•Transmission filter (if applicable)
•Gasket for transmission pan (if applicable)

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Diagnostic Steps

1
Scan the vehicle's onboard computer using an OBD-II scanner to check for any transmission-related error codes.
2
Inspect the transmission fluid level and condition; look for burnt smell or metal particles.
3
Check for any visible leaks in the transmission area, including seals and gaskets.
4
Inspect the transmission fluid lines for damage or blockages.
5
Test drive the vehicle to replicate the slipping issue and observe under what conditions it occurs.
6
Perform a visual inspection of the transmission control module (TCM) connections and wiring for any corrosion or damage.

Solution

1. Preparation

Gather tools and parts necessary for repair.
Ensure the vehicle is on a level surface and secure with jack stands.
Safety glasses and gloves should be worn.

2. Check and Change Transmission Fluid

Sub-steps:
1. Remove the transmission dipstick and check fluid level and condition.
2. If fluid is low, add the correct type of ATF (consult owner’s manual for specification, typically Mercon ULV for Ford).
3. If fluid is burnt or contaminated, drain the transmission fluid by removing the drain plug (if equipped) or the pan.
4. Replace the transmission filter if necessary (consult vehicle service manual for specifics).
5. Refill with new transmission fluid to the appropriate level.

3. Inspect and Repair Transmission Components

Sub-steps:
1. Remove the transmission pan (if applicable) using a socket set, and inspect for debris or wear.
2. Check the condition of the valve body and solenoids; replace if necessary.
3. Inspect the torque converter for proper function; replace if slipping is detected.
4. Reassemble transmission pan ensuring the gasket is sealed properly and torque bolts to manufacturer specifications.

4. Reprogram TCM (if applicable)

Sub-steps:
1. Connect the OBD-II scanner and access the TCM settings.
2. Follow the prompts to reprogram or reset the TCM, if necessary.

5. Test Drive

Conduct a test drive to ensure the transmission operates smoothly and slipping has ceased.

Tools Required:

OBD-II scanner
Socket set
Torque wrench
Transmission fluid pump (if needed)
Fluid catch pan

Parts Required:

Transmission fluid (Mercon ULV)
Transmission filter (if applicable)
Gasket for transmission pan (if applicable)

Estimated Repair Time: 2-4 hours

Safety Warnings:

Disconnect the battery before working on electrical systems.
Allow engine to cool before opening any components to avoid burns from hot fluids.