how to troubleshoot Ford Explorer Fifth Generation (2011-2019) transmission shifting issues

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

542 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 troubleshoot and fix transmission shifting issues in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with diagnostic procedures.

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 checking or replacing transmission fluid.

Symptoms

•Check engine light illuminated
•Delayed or rough shifting between gears
•Transmission slipping or failing to engage
•Unusual noises during shifting (grinding or whining)
•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 codes.
2
Check the transmission fluid level and condition; look for burnt smell or dark discoloration.
3
Inspect the transmission cooler lines and seals for any signs of leaks.
4
Test the battery voltage and alternator output, as electrical issues can affect transmission performance.
5
Examine the transmission control module (TCM) for proper connections and functionality.
6
Perform a visual inspection of the transmission for any obvious signs of damage or wear.

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
•Fluid drain pan
•Transmission fluid pump (optional)
•Torque wrench

Parts Required

•Transmission fluid (Mercon LV)
•Transmission filter (if applicable)
•Transmission Control Module (if replacement is necessary)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related codes.
2
Check the transmission fluid level and condition; look for burnt smell or dark discoloration.
3
Inspect the transmission cooler lines and seals for any signs of leaks.
4
Test the battery voltage and alternator output, as electrical issues can affect transmission performance.
5
Examine the transmission control module (TCM) for proper connections and functionality.
6
Perform a visual inspection of the transmission for any obvious signs of damage or wear.

Solution

1. Preparation

Gather tools and parts.
Park the vehicle on a level surface and secure it with wheel chocks.
Disconnect the negative battery terminal to prevent electrical shock.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Locate the transmission dipstick and remove it.
2. Wipe the dipstick clean and reinsert it to check fluid level.
3. If low, add the recommended type of transmission fluid (Mercon LV).
4. If the fluid is burnt or contaminated, drain the transmission fluid using a drain pan.
5. Replace the fluid filter according to manufacturer specifications.
6. Refill the transmission with new fluid, ensuring it reaches the proper level.

3. Inspect and Replace Transmission Control Module (if necessary)

Sub-steps:
1. Remove the TCM cover (if applicable) using a socket set.
2. Disconnect the electrical connectors.
3. Remove the TCM from its mounting bracket.
4. Install the new TCM by reversing the removal steps and ensuring all connections are secure.

4. Perform a Transmission Reset

Sub-steps:
1. Reconnect the negative battery terminal.
2. Turn the ignition to the "On" position without starting the engine.
3. Wait for 10 seconds, then turn the ignition off.
4. Start the engine and allow it to idle for a few minutes.
5. Test drive the vehicle to ensure proper shifting.