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

521 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 symptoms and solutions.

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 and transmission to cool before opening any components.

Symptoms

•Engine revs without corresponding acceleration
•Delayed or harsh shifting between gears
•Unusual burning smell from the transmission
•Transmission warning light illuminated on the dashboard
•Fluid leaks under the vehicle
•Poor fuel economy

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify potential transmission-related issues.
2
Check the transmission fluid level and condition (color and smell).
3
Inspect the transmission fluid for contamination or metal shavings.
4
Examine the transmission control module (TCM) and wiring for any signs of damage or disconnection.
5
Test the throttle position sensor (TPS) for proper function using a multimeter.
6
Conduct a road test to observe the conditions under which the slipping occurs.

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
•Fluid pump
•Screwdrivers

Parts Required

•Transmission fluid
•Transmission filter (if applicable)
•TCM (if required)
•Transmission bands (if required)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify potential transmission-related issues.
2
Check the transmission fluid level and condition (color and smell).
3
Inspect the transmission fluid for contamination or metal shavings.
4
Examine the transmission control module (TCM) and wiring for any signs of damage or disconnection.
5
Test the throttle position sensor (TPS) for proper function using a multimeter.
6
Conduct a road test to observe the conditions under which the slipping occurs.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Ensure the vehicle is on a level surface and securely raised with jack stands.
Disconnect the negative battery terminal to prevent electrical shorts during the repair.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Locate the transmission dipstick or fill port.
2. Remove the dipstick and wipe it clean; reinsert and check fluid level.
3. If fluid is low, add the recommended transmission fluid as specified in the owner's manual.
4. If fluid is discolored or burnt, proceed to drain and replace the fluid.
5. Use a fluid pump to drain the old fluid from the transmission pan.
6. Replace the transmission fluid filter if applicable.
7. Refill the transmission with the correct type and amount of fluid.

3. Inspect and Repair the Transmission Control Module (TCM)

Sub-steps:
1. Locate the TCM, usually found near the transmission or under the dashboard.
2. Check the connectors for corrosion or loose wiring.
3. If damaged, replace the TCM with a new unit.
4. Reconnect all wiring and ensure secure connections.

4. Adjust or Replace Transmission Bands (if applicable)

Sub-steps:
1. Consult the service manual for specific adjustment procedures based on the transmission type.
2. Locate the band adjustment screws, typically found on the transmission case.
3. Use a torque wrench to adjust the bands to the manufacturer's specified torque.
4. If replacement is necessary, remove the transmission pan and access the bands for replacement.

5. Reassemble and Test

Sub-steps:
1. Reinstall the transmission pan (if removed) and ensure all bolts are properly torqued.
2. Reconnect the negative battery terminal.
3. Start the engine and let it run to check for leaks.
4. Conduct a road test to verify the repair and ensure the transmission is operating smoothly.

Tools Required:

OBD-II scanner
Socket set
Torque wrench
Multimeter
Fluid pump
Screwdrivers

Parts Required:

Transmission fluid
Transmission filter (if applicable)
TCM (if required)
Transmission bands (if required)

Estimated Repair Time: 2-4 hours

Safety Warnings:

Disconnect the battery before working on electrical systems.
Allow the engine and transmission to cool before opening any components.