how to diagnose Ford Explorer Fifth Generation (2011-2019) transmission slipping issues

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

609 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 Fifth Generation (2011-2019). 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 components

Symptoms

•Engine RPM increases without acceleration
•Delayed or harsh shifting between gears
•Unusual noises such as whining or grinding during gear changes
•Check engine light illuminated
•Fluid leaks under the vehicle
•Transmission warning light on the dashboard

Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect transmission fluid level and condition
3
Check for fluid leaks around the transmission pan
4
Perform a test drive to replicate slipping symptoms
5
Inspect the operation of the transmission solenoids
6
Examine wiring and connectors leading to the transmission

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
•Transmission fluid pump
•Transmission jack

Parts Required

•Transmission fluid
•Transmission filter
•Transmission pan gasket or sealant
•Transmission solenoids (if faulty)

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Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect transmission fluid level and condition
3
Check for fluid leaks around the transmission pan
4
Perform a test drive to replicate slipping symptoms
5
Inspect the operation of the transmission solenoids
6
Examine wiring and connectors leading to the transmission

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, torque wrench, transmission fluid pump, transmission jack.
Ensure the vehicle is on a level surface and engage the parking brake. Disconnect the battery to avoid electrical issues.

2. Fluid Change

Remove Transmission Pan:
- Use a socket set to remove the bolts securing the transmission pan.
- Carefully lower the pan to avoid spilling fluid, and clean the mating surface.
Replace Filter:
- Remove the old transmission filter and replace it with a new one. Ensure the new filter is seated properly.
Reinstall Transmission Pan:
- Apply a new gasket or sealant as per manufacturer specifications.
- Torque the pan bolts to the manufacturer’s specifications (typically around 8-10 ft-lbs).

3. Solenoid Replacement (if faulty)

Remove Transmission Control Module (TCM):
- Disconnect electrical connectors and remove the TCM from its mounting.
Access Transmission Solenoids:
- Depending on access, you may need to remove additional components. Follow service manual guidelines for specific disassembly.
Replace Solenoids:
- Remove the faulty solenoids and replace them with new ones. Ensure they are correctly aligned and seated.
Reassemble Components:
- Reinstall the TCM and any components that were removed in reverse order.

4. Final Fluid Check

After all repairs, refill the transmission with the appropriate type of fluid (consult the owner’s manual for specifications).
Start the engine and cycle through the gears while checking fluid levels using the dipstick.