how to fix transmission slipping in Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

601 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 (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 negative battery terminal to prevent electrical shorts
•Allow the engine to cool before working on the transmission

Symptoms

•Engine RPMs increase without corresponding vehicle acceleration
•Delayed or harsh shifting between gears
•Unusual noises from the transmission, such as whining or grinding
•Check transmission fluid warning light illuminated
•Fluid leaks underneath the vehicle
•Increased fuel consumption

Diagnostic Steps

1
Check transmission fluid level using the dipstick
2
Inspect transmission fluid condition for discoloration or burnt smell
3
Scan for error codes using an OBD-II scanner
4
Inspect transmission mounts for any broken or worn parts
5
Test drive the vehicle to observe transmission behavior
6
Run a pressure test to check transmission line pressure

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
•Funnel
•Pressure gauge

Parts Required

•Transmission filter
•Gasket for transmission pan
•Transmission fluid (Mercon LV)

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Diagnostic Steps

1
Check transmission fluid level using the dipstick
2
Inspect transmission fluid condition for discoloration or burnt smell
3
Scan for error codes using an OBD-II scanner
4
Inspect transmission mounts for any broken or worn parts
5
Test drive the vehicle to observe transmission behavior
6
Run a pressure test to check transmission line pressure

Solution

1. Preparation

Gather necessary tools and parts. Ensure the vehicle is parked on a level surface.
Safety Warning: Disconnect the negative battery terminal to prevent electrical shorts.

2. Fluid Change

Drain Old Fluid:
- Locate the transmission drain plug and use a wrench to remove it.
- Allow old fluid to completely drain into a suitable container.
Replace Transmission Filter:
- Remove the transmission pan by unscrewing the bolts with a socket wrench.
- Take out the old filter and replace it with a new one, ensuring the new filter is properly seated.
Clean Transmission Pan:
- Thoroughly clean the transmission pan with solvent and remove old gasket material.
Reinstall Transmission Pan:
- Place a new gasket on the pan and reinstall it, tightening bolts to the manufacturer’s specified torque (usually around 10-12 ft-lb).

3. Refill Transmission Fluid

Add New Fluid:
- Using a funnel, refill the transmission with the recommended fluid type (e.g., Mercon LV) through the dipstick tube.
- Start with the amount specified in the owner’s manual, usually around 5-7 quarts, and check the level.

4. Test and Adjust

Start the Engine:
- Allow it to run and check for leaks around the pan.
- Cycle through all gears while checking fluid levels and add more fluid if necessary.

5. Recheck and Monitor

Test Drive:
- Take the vehicle for a short test drive to ensure the slipping issue is resolved and that shifts are smooth.