how to fix my Ford Explorer's slipping transmission

Ford Explorer Fifth Generation (2011-2019)

Error Codes

3-5 hours

Time

medium

Difficulty

high

Severity

3 min read

549 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 a slipping transmission in your Ford Explorer. 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 opening or draining the transmission fluid.

Symptoms

•Engine revs without an increase in vehicle speed
•Delayed or harsh shifting between gears
•Unusual noises during gear changes (e.g., clunking or whining)
•Fluid leaks under the vehicle
•Check engine light illuminated

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify transmission-related issues.
2
Check the transmission fluid level and condition (color and smell).
3
Inspect transmission fluid for signs of contamination or burnt odor.
4
Visually inspect the transmission for any leaks or damage to hoses and seals.
5
Test the performance of the transmission solenoids using a multimeter.
6
Check the transmission filter for clogs or blockages.

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
•Fluid pump
•Multimeter
•Funnel

Parts Required

•Transmission fluid
•Transmission filter
•Gasket for transmission pan (if needed)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify transmission-related issues.
2
Check the transmission fluid level and condition (color and smell).
3
Inspect transmission fluid for signs of contamination or burnt odor.
4
Visually inspect the transmission for any leaks or damage to hoses and seals.
5
Test the performance of the transmission solenoids using a multimeter.
6
Check the transmission filter for clogs or blockages.

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, torque wrench, transmission fluid, fluid pump, multimeter, and funnel.
Ensure the vehicle is on a level surface and the engine is cool.
Disconnect the battery to avoid electrical issues during work.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Locate the transmission dipstick (if equipped) or the fill plug.
2. Remove the dipstick or fill plug and check fluid level using the dipstick markings or by the fill plug opening.
3. If low, use a fluid pump to add the recommended type of transmission fluid until it reaches the correct level.
4. If the fluid is burnt or contaminated, proceed to drain and replace it.
5. Place a drain pan under the transmission, remove the drain plug and allow the old fluid to completely drain.
6. Replace the drain plug and torque it to the manufacturer's specifications.

3. Replace Transmission Filter

Sub-steps:
1. Remove the transmission pan by unscrewing the bolts with a socket set.
2. Carefully lower the pan and remove the old filter attached to the valve body.
3. Install the new filter, ensuring it is seated properly.
4. Clean the transmission pan and replace the gasket if necessary.
5. Reinstall the transmission pan and torque the bolts to specifications.

4. Test Transmission Functionality

Sub-steps:
1. Reconnect the battery.
2. Start the engine and let it idle for a few minutes.
3. Shift through all gears to ensure smooth operation.
4. Perform a test drive to confirm that the slipping has been resolved.