how to fix transmission slipping on my Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

535 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 (2011-2019). Step-by-step guide with symptoms, diagnostics, 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 to avoid burns.

Symptoms

•Engine RPM increases without a corresponding increase in vehicle speed
•Difficulty shifting gears or delayed engagement
•Unusual noises during shifting (such as grinding or whining)
•Check transmission fluid level warning light illumination
•Poor acceleration or loss of power during driving

Diagnostic Steps

1
Check the transmission fluid level and condition using the dipstick.
2
Scan the vehicle's onboard computer for any transmission-related error codes using an OBD-II scanner.
3
Inspect the transmission fluid for contamination, burnt smell, or debris.
4
Look for any visible leaks under the vehicle around the transmission area.
5
Test the transmission solenoids for proper operation and response.
6
Inspect the condition of the transmission filter for clogs or wear.

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
•Fluid pump
•Multimeter

Parts Required

•Transmission fluid (Mercon LV or equivalent)
•Transmission filter
•Gasket for transmission pan
•Transmission solenoids (if needed)

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Diagnostic Steps

1
Check the transmission fluid level and condition using the dipstick.
2
Scan the vehicle's onboard computer for any transmission-related error codes using an OBD-II scanner.
3
Inspect the transmission fluid for contamination, burnt smell, or debris.
4
Look for any visible leaks under the vehicle around the transmission area.
5
Test the transmission solenoids for proper operation and response.
6
Inspect the condition of the transmission filter for clogs or wear.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the battery to prevent electrical issues.

2. Check and Replace Fluid

Check Fluid Level:
- Remove the transmission dipstick and wipe it clean.
- Reinsert and remove again to check the fluid level.
Replace Fluid:
- If low, drain the old transmission fluid using a fluid pump or drain plug.
- Replace with manufacturer-recommended transmission fluid (e.g., Mercon LV).
- Recheck the fluid level after filling, and ensure it is within the proper range.

3. Replace Transmission Filter

Remove the Pan:
- Use a socket set to remove the bolts securing the transmission pan.
- Carefully lower the pan and allow the fluid to drain completely.
Replace the Filter:
- Remove the old filter and replace it with a new one, ensuring the sealing surfaces are clean.
- Reinstall the pan using a new gasket and torque the bolts to the manufacturer's specifications (typically around 10-12 ft-lbs).

4. Test Solenoids

Access the Solenoids:
- Remove any necessary components to access the transmission solenoids.
Test Solenoids:
- Use a multimeter to test each solenoid for proper resistance.
- Replace any malfunctioning solenoids with OEM parts.

5. Reconnect Battery

Reconnect the battery terminals securely, ensuring there are no loose connections.