how to resolve Ford Explorer transmission slipping issues when driving

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

591 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 issues in Ford Explorer. 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 pan.

Symptoms

•Check engine light illuminated
•Delay in acceleration or power loss
•Unusual noises (grinding or whining) during shifting
•Harsh or erratic shifting
•Fluid leaks under the vehicle
•Overheating of the transmission

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related issues.
2
Check the transmission fluid level and condition; look for discoloration or burnt smell.
3
Inspect the transmission for any visible leaks or damage.
4
Test the transmission solenoids for proper operation using a multimeter.
5
Verify the condition of the transmission filter, especially if the fluid appears contaminated.
6
Check the transmission cooler for blockages or leaks.

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

•Jack stands
•Socket set
•OBD-II scanner
•Multimeter
•Transmission fluid pump

Parts Required

•Transmission fluid
•Transmission filter
•Gasket or sealant for the transmission pan
•Transmission solenoids (if needed)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related issues.
2
Check the transmission fluid level and condition; look for discoloration or burnt smell.
3
Inspect the transmission for any visible leaks or damage.
4
Test the transmission solenoids for proper operation using a multimeter.
5
Verify the condition of the transmission filter, especially if the fluid appears contaminated.
6
Check the transmission cooler for blockages or leaks.

Solution

1. Preparation

Gather necessary tools and parts. Ensure the vehicle is parked on a level surface and the engine is cool.
Tools Required: Jack stands, socket set, OBD-II scanner, multimeter, transmission fluid pump.

2. Fluid Change

1.1. Drain Fluid:
- Place a drain pan under the transmission pan.
- Remove the transmission pan bolts using a socket set and carefully lower the pan to drain the fluid.
1.2. Inspect Pan and Filter:
- Clean the transmission pan and inspect for metal shavings or debris.
- Remove the old transmission filter and replace it with a new one.
1.3. Reinstall Pan:
- Apply a new gasket or sealant as per the manufacturer's specifications.
- Reinstall the transmission pan and torque the bolts to the specified torque value (usually around 10-12 ft-lbs).
1.4. Refill Transmission Fluid:
- Use a transmission fluid pump to refill the transmission with the recommended fluid type as per the owner's manual.
- Check the fluid level using the dipstick, ensuring it is at the correct level.

3. Solenoid and Electrical Check

2.1. Inspect Wiring:
- Visually inspect the wiring to the transmission and solenoids for fraying or damage.
2.2. Test Solenoids:
- Unplug the solenoids and test their resistance using a multimeter; compare readings with specifications in the service manual.
2.3. Replace Faulty Solenoids:
- If any solenoids are out of specification, replace them with new units.

4. Transmission Cooler Inspection

3.1. Check Cooler Lines:
- Inspect transmission cooler lines for blockages or leaks.
3.2. Flush Cooler:
- If blockages are found, flush the transmission cooler using a flushing kit.