why does my Ford Explorer Fifth Generation (2011-2019) transmission slip when shifting?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

3-5 hours

Time

medium

Difficulty

high

Severity

3 min read

515 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 in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Transmission

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before working on the transmission.

Symptoms

•Slipping or hesitation during acceleration
•Unusual engine revving without corresponding vehicle speed increase
•Delay in engagement when shifting from park to drive or reverse
•Warning lights illuminated on the dashboard, such as the check engine light
•Fluid leaks under the vehicle
•Erratic shifting patterns or harsh shifts

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related trouble codes.
2
Check the transmission fluid level and condition; look for discoloration or a burnt smell.
3
Inspect the transmission fluid for leaks around seals and connectors.
4
Examine the transmission filter for clogs or restrictions that could affect fluid flow.
5
Test the transmission solenoids for proper operation using a multimeter.
6
Assess the condition of the transmission control module and wiring for any signs of damage or corrosion.

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
•Transmission filter (if applicable)
•Transmission solenoids

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Symptoms

•Slipping or hesitation during acceleration

•Unusual engine revving without corresponding vehicle speed increase

•Delay in engagement when shifting from park to drive or reverse

•Warning lights illuminated on the dashboard, such as the check engine light

•Fluid leaks under the vehicle

•Erratic shifting patterns or harsh shifts

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related trouble codes.
2
Check the transmission fluid level and condition; look for discoloration or a burnt smell.
3
Inspect the transmission fluid for leaks around seals and connectors.
4
Examine the transmission filter for clogs or restrictions that could affect fluid flow.
5
Test the transmission solenoids for proper operation using a multimeter.
6
Assess the condition of the transmission control module and wiring for any signs of damage or corrosion.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and securely raised using jack stands.
Disconnect the battery to prevent electrical issues during repair.

2. Check and Replace Transmission Fluid

Tools Required: Fluid pump, funnel, torque wrench.
Remove the transmission dipstick, wipe it clean, and reinsert to check fluid level.
If low, remove the transmission pan bolts and allow fluid to drain into a suitable container.
Replace the transmission filter if applicable.
Reinstall the transmission pan and torque bolts to manufacturer's specifications.
Refill with the recommended type of transmission fluid using a fluid pump.

3. Replace Transmission Solenoids

Tools Required: Socket set, torque wrench, multimeter.
Disconnect the wiring harness from the transmission solenoids.
Remove the solenoid cover or valve body, depending on the design.
Replace the solenoids with new, manufacturer-recommended units.
Reassemble the valve body/solenoid cover and reconnect the wiring harness.

4. Reconnect Battery and Test Drive

Reconnect the battery terminals.
Start the vehicle and allow it to reach operating temperature.
Take the vehicle for a test drive to ensure smooth shifting and operation.