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

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

585 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 battery before working on electrical systems.
•Allow the engine and transmission to cool down before servicing.

Symptoms

•Engine revs without corresponding vehicle acceleration
•Harsh or delayed shifting between gears
•Transmission warning light illuminated on the dashboard
•Fluid leaks under the vehicle
•Unusual noises (grinding or whining) when the vehicle is in gear
•Poor fuel economy

Diagnostic Steps

1
Check the transmission fluid level and condition using the dipstick.
2
Scan the vehicle’s onboard diagnostics (OBD-II) system for any error codes related to the transmission.
3
Inspect for any visible leaks around the transmission area.
4
Monitor the fluid temperature using a scanner to ensure it is within operational limits.
5
Perform a road test to replicate the slipping condition and note any specific circumstances that trigger it.
6
Inspect the transmission filter and pan for debris or metal shavings.

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
•Jack and jack stands
•Transmission fluid pump
•Socket set
•Torque wrench
•Drain pan

Parts Required

•Automatic Transmission Fluid (ATF)
•Transmission filter
•Gasket for transmission pan

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Diagnostic Steps

1
Check the transmission fluid level and condition using the dipstick.
2
Scan the vehicle’s onboard diagnostics (OBD-II) system for any error codes related to the transmission.
3
Inspect for any visible leaks around the transmission area.
4
Monitor the fluid temperature using a scanner to ensure it is within operational limits.
5
Perform a road test to replicate the slipping condition and note any specific circumstances that trigger it.
6
Inspect the transmission filter and pan for debris or metal shavings.

Solution

1. Preparation

Tools Required: OBD-II scanner, jack and jack stands, transmission fluid pump, socket set, torque wrench, drain pan.
Ensure the vehicle is on a flat surface and safely elevated if necessary.

2. Check Transmission Fluid

Sub-steps:
1. Start the engine and let it warm up to operating temperature.
2. With the engine running, remove the dipstick and wipe it clean.
3. Reinsert the dipstick fully and remove again to check the fluid level.
4. If fluid is low, add the recommended type of ATF (Automatic Transmission Fluid) specified in the owner’s manual.
5. Check fluid condition; if it is dark or has a burnt smell, it may need to be changed.

3. Transmission Fluid Change

Sub-steps:
1. Place a drain pan under the transmission pan.
2. Remove the transmission pan bolts using a socket set (note torque specifications for reinstallation).
3. Carefully lower the pan to drain fluid; clean the pan and magnet.
4. Replace the old filter with a new one, ensuring proper alignment.
5. Reinstall the pan with a new gasket and torque to specifications.

4. Electronic Diagnostics

Sub-steps:
1. Use the OBD-II scanner to check for any stored transmission-related trouble codes.
2. Clear any codes and take the vehicle for a test drive to see if codes reappear.
3. If specific codes are present, refer to the service manual for diagnostic procedures related to those codes.

5. Inspect Transmission Components

Sub-steps:
1. Inspect the valve body and solenoids for proper operation.
2. Check for any worn clutch packs or bands if the transmission is disassembled.
3. Replace any faulty components as indicated by visual inspection or diagnostic codes.