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

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

563 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 problems in Ford Explorer Fifth Generation (2011-2019). Step-by-step guide with symptoms and solutions.

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

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

Symptoms

•Transmission slipping during acceleration
•Harsh or delayed shifting between gears
•Unusual noises (grinding or whining) from the transmission
•Warning lights illuminated on the dashboard (e.g., check engine light)
•Transmission fluid leaks under the vehicle
•Failure to engage in drive or reverse

Diagnostic Steps

1
Scan the vehicle's computer for any Diagnostic Trouble Codes (DTCs) using an OBD-II scanner.
2
Check the transmission fluid level and condition; look for discoloration or burnt smell.
3
Inspect the transmission cooler lines and seals for any signs of leakage.
4
Perform a visual inspection of the transmission pan for metal shavings or debris.
5
Test the transmission range sensor for proper operation.
6
Drive the vehicle and monitor for symptoms while checking for any unusual behavior in shifting.

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
•Funnel
•Multimeter
•Gasket scraper

Parts Required

•Transmission fluid
•Transmission filter
•New gasket for transmission pan
•Transmission range sensor (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Symptoms

•Transmission slipping during acceleration

•Harsh or delayed shifting between gears

•Unusual noises (grinding or whining) from the transmission

•Warning lights illuminated on the dashboard (e.g., check engine light)

•Transmission fluid leaks under the vehicle

•Failure to engage in drive or reverse

Diagnostic Steps

1
Scan the vehicle's computer for any Diagnostic Trouble Codes (DTCs) using an OBD-II scanner.
2
Check the transmission fluid level and condition; look for discoloration or burnt smell.
3
Inspect the transmission cooler lines and seals for any signs of leakage.
4
Perform a visual inspection of the transmission pan for metal shavings or debris.
5
Test the transmission range sensor for proper operation.
6
Drive the vehicle and monitor for symptoms while checking for any unusual behavior in shifting.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface.
Disconnect the battery to avoid electrical shorts.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Locate the transmission dipstick or fill port.
2. Remove the dipstick, and wipe it clean.
3. Insert the dipstick back and remove it again to check the fluid level.
4. If low, add the manufacturer-recommended transmission fluid using a funnel.
5. If the fluid is burnt or dirty, proceed to replace it.
Tools Required: Funnel, transmission fluid.
Safety Warnings: Ensure the engine is off and the transmission is cool before checking fluid levels.

3. Inspect and Replace Transmission Filter

Sub-steps:
1. Drain the transmission fluid completely by removing the drain plug.
2. Remove the transmission pan by unbolting it (may need a gasket scraper).
3. Replace the old filter with a new one, ensuring proper alignment.
4. Clean the transmission pan and install it back with a new gasket.
5. Refill the transmission with the correct fluid.
Tools Required: Socket set, gasket scraper.
Safety Warnings: Use gloves and safety glasses to protect against fluid splashes.

4. Test and Repair Transmission Range Sensor

Sub-steps:
1. Remove the sensor connector and inspect for corrosion or damage.
2. Use a multimeter to check the sensor's voltage output.
3. If faulty, replace the sensor with a new one.
4. Reconnect the sensor and clear any DTCs from the computer.
Tools Required: Multimeter.
Safety Warnings: Ensure battery is disconnected before working on electrical components.