why does my Ford Explorer transmission slip between gears

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

544 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. 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

•Engine revs without an increase in speed
•Delayed engagement when shifting from park to drive or reverse
•Rough shifting or clunking noises during gear changes
•Check engine light illuminated
•Unusual burning smell from transmission fluid
•Fluid leaks 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; ensure it is at the correct level and not burnt or contaminated.
3
Inspect the transmission fluid for metal shavings or debris, indicating internal damage.
4
Examine the transmission linkage for wear or misalignment that may affect shifting.
5
Test the transmission solenoids using a multimeter to ensure they are functioning properly.
6
Check for vacuum leaks in the modulator line if applicable.

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
•Multimeter
•Torque wrench

Parts Required

•Transmission filter
•Transmission fluid
•Solenoids (if faulty)

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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 transmission fluid level and condition; ensure it is at the correct level and not burnt or contaminated.
3
Inspect the transmission fluid for metal shavings or debris, indicating internal damage.
4
Examine the transmission linkage for wear or misalignment that may affect shifting.
5
Test the transmission solenoids using a multimeter to ensure they are functioning properly.
6
Check for vacuum leaks in the modulator line if applicable.

Solution

1. Preparation

Gather necessary tools and components.
Ensure the vehicle is parked on a level surface.
Disconnect the battery to prevent electrical shorts.
Required tools: OBD-II scanner, socket set, multimeter, torque wrench.

2. Change Transmission Fluid and Filter

Drain Old Fluid
- Locate the transmission drain plug and use a socket set to remove it.
- Allow old fluid to fully drain into a suitable container.
Replace Filter
- Remove the transmission pan by unscrewing the bolts with a socket set.
- Carefully detach the pan and remove the old filter.
- Install a new filter according to specifications.
Clean Transmission Pan
- Clean the transmission pan thoroughly to remove any debris.
- Replace the gasket on the pan.
Reinstall Pan
- Reattach the transmission pan, ensuring it is secured with the correct torque specifications.
- Reinstall the drain plug.
Refill Transmission Fluid
- Use a funnel to refill the transmission with the recommended type and amount of fluid.
- Start the engine and allow it to run for a few minutes, checking for leaks.

3. Repair or Replace Solenoids

Access Solenoids
- Depending on the model, you may need to remove the valve body to access the solenoids.
Test Solenoids
- Use a multimeter to check the resistance of each solenoid; compare readings to manufacturer specifications.
Replace Faulty Solenoids
- If any solenoids are faulty, remove them and install new ones as per instructions.