my Ford Explorer Fifth Generation (2011-2019) transmission slips when shifting, what should I do?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

3-6 hours

Time

medium

Difficulty

high

Severity

3 min read

577 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

3-6 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Ensure the engine is cool before opening the transmission system.

Symptoms

•Transmission slips between gears
•Unresponsive or delayed shifting
•Unusual noises during shifting (e.g., grinding or whining)
•Check engine light illuminated
•Fluid leakage under the vehicle
•Poor acceleration or loss of power

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related fault codes.
2
Check the transmission fluid level and condition; look for burnt smell or dark coloration.
3
Inspect the transmission fluid for leaks around seals and gaskets.
4
Assess the transmission filter for clogs or restrictions.
5
Verify the operation of the transmission control module (TCM) and its connections.
6
Test drive the vehicle to replicate the slipping issue and monitor performance.

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
•Drain pan
•Screwdrivers
•Transmission fluid pump

Parts Required

•Transmission fluid
•Transmission filter
•Gasket for transmission pan
•Solenoids

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related fault codes.
2
Check the transmission fluid level and condition; look for burnt smell or dark coloration.
3
Inspect the transmission fluid for leaks around seals and gaskets.
4
Assess the transmission filter for clogs or restrictions.
5
Verify the operation of the transmission control module (TCM) and its connections.
6
Test drive the vehicle to replicate the slipping issue and monitor performance.

Solution

1. Preparation

Gather Tools and Parts: Ensure you have all necessary tools and parts before starting the repair.
Safety Precautions: Disconnect the battery to prevent electrical shorts. Allow the vehicle to cool down before working on the transmission.

2. Check and Replace Transmission Fluid

Fluid Check:
- Remove the transmission dipstick and wipe it clean.
- Reinsert the dipstick, remove it again, and check the fluid level.
- If low, add the appropriate transmission fluid as specified in the owner's manual.
Fluid Replacement:
- Place a drain pan under the transmission pan.
- Remove the transmission pan bolts using a socket set and carefully lower the pan.
- Allow the old fluid to drain completely.
- Replace the transmission filter by removing any retaining clips and installing the new filter.
- Clean the transmission pan and replace the gasket. Reinstall the pan and torque bolts to manufacturer specifications.

3. Inspect and Repair Transmission Components

Inspect Bands and Clutches:
- Remove the transmission access cover to observe internal components.
- Inspect bands and clutches for wear or damage; adjust or replace as necessary.
Replace any damaged solenoids:
- Disconnect the wiring harness from the solenoids and remove them.
- Install new solenoids and reconnect the wiring.

4. Reconnect Electrical Components

Reconnect the TCM:
- Ensure all connectors are securely attached.
- Reconnect the battery and check for any diagnostic trouble codes.

5. Test Drive

Final Check:
- Start the vehicle and allow it to reach operating temperature.
- Test drive the vehicle to ensure smooth shifting without slipping.