my Ford Explorer Sixth Generation (2020-present) transmission is slipping when accelerating

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

571 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 in Ford Explorer (2020-2023). 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 opening the transmission to prevent burns.

Symptoms

•Transmission slips or hesitates during acceleration
•Engine RPM increases without corresponding vehicle speed
•Warning lights illuminated on the dashboard (e.g., check engine light)
•Delayed or harsh shifting between gears
•Fluid leakage under the vehicle

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related trouble codes.
2
Check transmission fluid level and condition using the dipstick; look for low levels or burnt fluid.
3
Inspect the transmission fluid for contamination or metal shavings, which may indicate internal damage.
4
Visually inspect the transmission cooler lines and seals for leaks.
5
Test the battery voltage and charging system, as low voltage can affect transmission performance.
6
Evaluate the throttle position sensor (TPS) and mass airflow sensor (MAF) 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
•Transmission fluid dipstick
•Socket set
•Torque wrench
•Drain pan
•Funnel

Parts Required

•Transmission fluid (Mercon ULV)
•Transmission filter (if needed)
•Transmission pan gasket (if necessary)
•Transmission solenoid (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related trouble codes.
2
Check transmission fluid level and condition using the dipstick; look for low levels or burnt fluid.
3
Inspect the transmission fluid for contamination or metal shavings, which may indicate internal damage.
4
Visually inspect the transmission cooler lines and seals for leaks.
5
Test the battery voltage and charging system, as low voltage can affect transmission performance.
6
Evaluate the throttle position sensor (TPS) and mass airflow sensor (MAF) for proper function.

Solution

1. Preparation

Gather necessary tools and materials.
Ensure the vehicle is on a level surface and securely supported with jack stands.
Disconnect the battery to avoid electrical shorts.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Remove the transmission dipstick and wipe it clean.
2. Insert the dipstick back and check fluid level; add the appropriate type of transmission fluid if low.
3. If the fluid is burnt or contaminated, proceed to replace it.
4. Locate the transmission drain plug and place a drain pan underneath.
5. Remove the drain plug and allow old fluid to completely drain.
6. Reinstall the drain plug and torque to the manufacturer's specifications (usually around 10-15 ft-lbs).
7. Remove the transmission pan (if necessary) and replace the filter if it is clogged.
8. Refill the transmission with new fluid through the dipstick tube with the recommended fluid type (e.g., Mercon ULV).

3. Inspect and Repair Components

Sub-steps:
1. Inspect transmission cooler lines for leaks; replace if damaged.
2. Check the transmission mounts for wear or damage; replace if necessary.
3. Examine the throttle position sensor and mass airflow sensor; clean or replace if faulty.
4. If codes indicate a specific solenoid failure, remove and replace the corresponding solenoid.

4. Reconnect Battery and Test Drive

Sub-steps:
1. Reconnect the battery terminals securely.
2. Start the engine and allow it to warm up.
3. Test drive the vehicle under various conditions to ensure proper operation.