how to fix the transmission fluid leak in my Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

530 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 fluid leaks in Ford Explorer (2011-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

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 opening the transmission components.

Symptoms

•Check transmission fluid level warning light illuminated
•Puddles of red or brown fluid under the vehicle
•Slipping transmission or delayed shifting
•Unusual noises from the transmission area
•Overheating transmission

Diagnostic Steps

1
Visually inspect the transmission pan and surrounding areas for signs of fluid leakage.
2
Check the transmission fluid level using the dipstick; look for discoloration or burnt smell.
3
Use an OBD-II scanner to check for any transmission-related error codes.
4
Inspect the transmission cooler lines for cracks or damage.
5
Look for leaks around the input and output seals of the transmission.
6
Check the condition of the transmission pan gasket.

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
•Wrench set
•Drain pan
•Gasket scraper
•Funnel

Parts Required

•Transmission pan gasket
•Transmission fluid
•Transmission cooler lines (if damaged)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Visually inspect the transmission pan and surrounding areas for signs of fluid leakage.
2
Check the transmission fluid level using the dipstick; look for discoloration or burnt smell.
3
Use an OBD-II scanner to check for any transmission-related error codes.
4
Inspect the transmission cooler lines for cracks or damage.
5
Look for leaks around the input and output seals of the transmission.
6
Check the condition of the transmission pan gasket.

Solution

1. Preparation

Gather all necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery to avoid electrical issues during repair.

2. Drain Transmission Fluid

Tools Required: Socket set, drain pan
Remove the transmission pan bolts with a socket wrench.
Carefully lower the transmission pan and allow the fluid to drain into the drain pan.

3. Inspect and Replace Gasket/Seals

Inspect the old gasket for wear or damage.
If the gasket is damaged, clean the mating surfaces on the transmission and pan using a gasket scraper.
Apply a new gasket or a bead of RTV silicone sealant according to manufacturer specifications.

4. Check and Replace Transmission Lines (if necessary)

Tools Required: Wrench set, replacement transmission lines
Inspect the transmission cooler lines for leaks or damage.
If damaged, disconnect the lines using a wrench and replace them with new lines.
Ensure all fittings are tight and properly secured.

5. Reinstall Transmission Pan

Place the transmission pan back onto the transmission.
Torque the pan bolts to the manufacturer’s specifications (typically around 12-15 ft-lbs).

6. Refill Transmission Fluid

Parts Required: Transmission fluid (check owner’s manual for type and quantity)
Using a funnel, refill the transmission fluid through the dipstick tube.
Start the engine and allow it to idle for a few minutes, then check the fluid level again and top off if necessary.