why does my Ford Explorer Fifth Generation (2011-2019) transmission hesitate when shifting

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

542 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 hesitation 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 any components related to the transmission.

Symptoms

•Hesitation or delay when shifting gears
•Rough or harsh shifting between gears
•Slipping sensation during acceleration
•Check engine light illuminated
•Unusual noises (grinding or whining) during gear changes

Diagnostic Steps

1
Scan the vehicle's onboard diagnostic system using an OBD-II scanner for any stored trouble codes.
2
Check the transmission fluid level and condition; ensure it is at the correct level and not burnt or contaminated.
3
Inspect the transmission fluid filter for clogs or restrictions.
4
Examine the transmission control module (TCM) and wiring for any visible damage or loose connections.
5
Test the transmission solenoids for proper operation using a multimeter to check resistance values.
6
Conduct a road test to replicate the condition and note specific circumstances under which the hesitation occurs.

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
•Multimeter
•Drain pan

Parts Required

•Transmission fluid (Ford Mercon LV)
•Transmission filter
•Gasket for transmission pan
•Transmission solenoids (if needed)

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Diagnostic Steps

1
Scan the vehicle's onboard diagnostic system using an OBD-II scanner for any stored trouble codes.
2
Check the transmission fluid level and condition; ensure it is at the correct level and not burnt or contaminated.
3
Inspect the transmission fluid filter for clogs or restrictions.
4
Examine the transmission control module (TCM) and wiring for any visible damage or loose connections.
5
Test the transmission solenoids for proper operation using a multimeter to check resistance values.
6
Conduct a road test to replicate the condition and note specific circumstances under which the hesitation occurs.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery to ensure safety during the repair.
Raise the vehicle securely using jack stands.

2. Check and Replace Transmission Fluid

Fluid Check:
- Remove the transmission dipstick and check the fluid level.
- If low, add the recommended transmission fluid (Ford Mercon LV).
Fluid Replacement:
- Place a drain pan under the transmission pan.
- Remove the transmission pan bolts using a socket set and carefully lower the pan.
- Allow old fluid to drain completely.
- Replace the transmission filter; ensure the sealing surface is clean.
- Install the new filter according to manufacturer specifications.
- Reinstall the transmission pan with a new gasket and torque bolts to the specified value (usually around 10-12 ft-lbs).

3. Inspect and Replace Transmission Solenoids

Inspection:
- Locate the transmission solenoids (usually found on the valve body).
- Disconnect the electrical connectors and remove the solenoids.
Replacement:
- Test solenoids with a multimeter; replace any that are outside the specified resistance range.
- Install new solenoids and reconnect electrical connectors.

4. Address Wiring and TCM Issues

Visually inspect the wiring harness for signs of wear, corrosion, or fraying.
Repair or replace damaged wiring as necessary.
If the TCM is suspected to be faulty, consider reprogramming or replacing it as per manufacturer guidelines.