why does my Ford Explorer Fifth Generation (2011-2019) feel like it's slipping when accelerating

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

550 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 Fifth Generation (2011-2019). Step-by-step guide with diagnostic procedures 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 any hot components.

Symptoms

•Slipping sensation during acceleration
•Unusual engine RPM fluctuations
•Delayed or harsh shifting between gears
•Check engine light illuminated
•Reduced acceleration power
•Possible transmission fluid leak under the vehicle

Diagnostic Steps

1
Scan the vehicle's OBD-II system for any stored error codes that may indicate transmission issues.
2
Check the transmission fluid level and condition; look for burnt odor or dark coloration.
3
Inspect the transmission for visible leaks or signs of damage.
4
Test drive the vehicle under controlled conditions to replicate the slipping sensation and note specific RPM and speed conditions.
5
Examine the condition of the transmission filter if accessible.
6
Verify that the throttle position sensor is functioning correctly using a multimeter.

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
•Transmission fluid pump
•Drain pan

Parts Required

•Transmission fluid (Ford Mercon LV)
•Transmission filter
•Transmission pan gasket

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Diagnostic Steps

1
Scan the vehicle's OBD-II system for any stored error codes that may indicate transmission issues.
2
Check the transmission fluid level and condition; look for burnt odor or dark coloration.
3
Inspect the transmission for visible leaks or signs of damage.
4
Test drive the vehicle under controlled conditions to replicate the slipping sensation and note specific RPM and speed conditions.
5
Examine the condition of the transmission filter if accessible.
6
Verify that the throttle position sensor is functioning correctly using a multimeter.

Solution

1. Preparation

Gather tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery to ensure safety while working on electrical components.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Locate the transmission dipstick and remove it.
2. Wipe the dipstick clean, reinsert it, and remove it again to check fluid level.
3. If the fluid is low, add the correct type of transmission fluid (Ford Mercon LV).
4. If the fluid is dark or burnt, proceed to drain and replace the fluid.
5. Remove the transmission drain plug, allowing fluid to fully drain into a container.
6. Replace the drain plug and tighten to the specified torque (typically around 10-15 ft-lbs).
7. Refill the transmission through the dipstick tube with fresh fluid.

3. Inspect and Replace Transmission Filter

Sub-steps:
1. Remove the transmission pan bolts using a socket set.
2. Carefully lower the pan, allowing any remaining fluid to drain out.
3. Remove the old transmission filter and replace it with a new one.
4. Clean the transmission pan and replace the pan gasket before reinstalling the pan.
5. Reinstall the transmission pan and tighten bolts to manufacturer specifications.

4. Test Drive

Sub-steps:
1. Reconnect the battery.
2. Start the engine and let it idle to check for leaks.
3. Take the vehicle for a test drive to ensure the slipping sensation has been resolved.