how to fix a transmission slipping issue in 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

585 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, diagnostic steps, and repair instructions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow engine to cool before opening the transmission or working with fluids.

Symptoms

•Transmission hesitates or slips during acceleration
•Unusual high RPMs without corresponding vehicle speed
•Harsh or delayed shifting between gears
•Check engine light illuminated
•Fluid leaks under the vehicle
•Burning smell from the transmission area

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for transmission-related trouble codes.
2
Inspect the transmission fluid level and condition; look for dark color or burnt smell.
3
Check for any visible leaks around the transmission cooler lines and pan.
4
Inspect the transmission filter for clogs or restrictions.
5
Test the transmission solenoids for proper operation using a multimeter.
6
Verify the condition of the throttle position sensor (TPS) and its connection.

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
•Funnel
•Cleaning rags

Parts Required

•Transmission fluid (Mercon LV)
•Transmission filter
•Gasket for transmission pan
•Transmission solenoids (if necessary)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for transmission-related trouble codes.
2
Inspect the transmission fluid level and condition; look for dark color or burnt smell.
3
Check for any visible leaks around the transmission cooler lines and pan.
4
Inspect the transmission filter for clogs or restrictions.
5
Test the transmission solenoids for proper operation using a multimeter.
6
Verify the condition of the throttle position sensor (TPS) and its connection.

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, torque wrench, multimeter, funnel, cleaning rags.
Ensure the vehicle is on a flat surface and the engine is cool.
Disconnect the battery before working on electrical components.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Remove the transmission dipstick and check the fluid level.
2. If low, add the recommended fluid type (Mercon LV for Ford Explorer).
3. If fluid is burnt or dirty, proceed to drain and replace.
4. Locate the transmission drain plug (if equipped) or remove the transmission pan.
5. Allow the fluid to fully drain into a catch pan.
6. Clean the transmission pan and replace the filter (if applicable).
7. Reinstall the pan using a new gasket and torque to manufacturer specifications (typically 12-15 ft-lbs).

3. Inspect and Replace Transmission Filter

Sub-steps:
1. Access the transmission filter by removing the transmission pan as described above.
2. Remove the old filter and replace it with a new one.
3. Ensure all sealing surfaces are clean before reattaching the pan.

4. Test and Replace Solenoids (if necessary)

Sub-steps:
1. Disconnect the transmission wiring harness to access solenoids.
2. Use a multimeter to test resistance of each solenoid according to specifications.
3. If any solenoid is faulty, remove and replace it with a new one.
4. Reconnect the wiring harness securely.

5. Reconnect and Test Drive

Sub-steps:
1. Reconnect the battery terminals.
2. Start the engine and allow it to reach operating temperature.
3. Check for any leaks around the transmission pan and cooler lines.
4. Conduct a test drive to verify if the slipping issue has been resolved.