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

537 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 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 engine to cool before opening the transmission system.

Symptoms

•Transmission slips when accelerating, causing a loss of power.
•Unusual noises (such as whining or grinding) during gear shifts.
•Delay in engagement when shifting from park to drive or reverse.
•Check engine light illuminated.
•Poor fuel economy compared to normal performance.

Diagnostic Steps

1
Scan the vehicle’s OBD-II system for any error codes that may indicate transmission issues.
2
Inspect transmission fluid level and condition; check for signs of contamination or burning smell.
3
Check for any signs of external leaks around the transmission.
4
Test the transmission control module (TCM) for proper operation.
5
Inspect the transmission filter for clogs or damage.
6
Conduct a road test to observe the slipping occurrence and gather more data.

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 pump
•Funnel
•Catch pan
•Socket set
•Torque wrench

Parts Required

•Transmission fluid
•Transmission filter
•Gasket for transmission pan

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Diagnostic Steps

1
Scan the vehicle’s OBD-II system for any error codes that may indicate transmission issues.
2
Inspect transmission fluid level and condition; check for signs of contamination or burning smell.
3
Check for any signs of external leaks around the transmission.
4
Test the transmission control module (TCM) for proper operation.
5
Inspect the transmission filter for clogs or damage.
6
Conduct a road test to observe the slipping occurrence and gather more data.

Solution

1. Preparation

Gather tools and parts required for the repair.
Ensure the vehicle is parked on a flat surface and the engine is cool.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Remove the transmission dipstick and check fluid level.
2. If low, add the manufacturer-recommended transmission fluid.
3. If the fluid is dirty or burnt, proceed to change the fluid.
Tools Required: Transmission fluid pump, funnel, catch pan.
Safety Warnings: Allow the engine to cool before opening the transmission system.

3. Inspect and Replace Transmission Filter

Sub-steps:
1. Drain the transmission fluid into a catch pan.
2. Remove the transmission pan by unscrewing the bolts.
3. Take out the old filter and replace it with a new one.
4. Clean the transmission pan and replace the gasket before reinstalling.
Tools Required: Socket set, torque wrench.
Safety Warnings: Ensure the vehicle is securely lifted and supported if necessary.

4. Check and Reprogram Transmission Control Module (if needed)

Sub-steps:
1. Reconnect the battery if it was disconnected.
2. Using an OBD-II scanner, check for TCM firmware updates.
3. Follow the scanner instructions to reprogram the TCM if necessary.
Tools Required: OBD-II scanner.

5. Test Drive

Sub-steps:
1. Start the engine and allow it to warm up.
2. Conduct a test drive under various conditions to ensure proper operation.
Tools Required: None.