how to fix Ford Explorer transmission jerking when shifting

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

605 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 jerking in Ford Explorer. 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 battery before working on electrical systems.
•Allow engine to cool before opening the transmission.

Symptoms

•Jerking or harsh shifting between gears
•Delay in engagement when shifting from park to drive
•Unusual noises during shifting (clunking or grinding)
•RPM fluctuations without corresponding vehicle speed changes
•Check engine light may be illuminated

Diagnostic Steps

1
Scan the vehicle's computer using an OBD-II scanner to check for any stored error codes.
2
Inspect transmission fluid level and condition; look for discoloration or burnt smell.
3
Check for any visible leaks around the transmission area.
4
Test the transmission control module (TCM) for faults or errors.
5
Inspect the engine and transmission mounts for wear or damage.
6
Examine the throttle position sensor (TPS) to ensure it is functioning correctly.

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
•Multimeter
•Transmission fluid pump
•Fluid catch pan
•Funnel
•Jack and jack stands

Parts Required

•Transmission fluid
•Transmission filter (if applicable)
•Throttle position sensor (if faulty)
•Transmission mounts (if damaged)

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Diagnostic Steps

1
Scan the vehicle's computer using an OBD-II scanner to check for any stored error codes.
2
Inspect transmission fluid level and condition; look for discoloration or burnt smell.
3
Check for any visible leaks around the transmission area.
4
Test the transmission control module (TCM) for faults or errors.
5
Inspect the engine and transmission mounts for wear or damage.
6
Examine the throttle position sensor (TPS) to ensure it is functioning correctly.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the battery for safety.

2. Fluid Inspection and Replacement

Tools Required: Transmission fluid pump, fluid catch pan, funnel.
Remove the transmission dipstick and check fluid level.
If fluid is low, add the appropriate type as specified in the owner's manual.
If fluid is dirty or burnt, proceed with the fluid change:
- Place a catch pan under the transmission pan.
- Remove the transmission pan bolts using a socket set.
- Carefully lower the pan and allow old fluid to drain completely.
- Replace the filter if applicable.
- Install the pan back with a new gasket and torque bolts to manufacturer specifications (usually around 10-12 ft-lbs).
- Fill the transmission with new fluid using a funnel until the correct level is reached.

3. Sensor and Module Inspection

Tools Required: Multimeter.
Check the throttle position sensor:
- Disconnect the TPS connector.
- Use a multimeter to measure the voltage output while moving the throttle; it should vary smoothly.
- Replace TPS if readings are erratic or out of specifications.
Inspect the transmission control module for any loose connections or damage, and replace if necessary.

4. Mount Inspection and Replacement

Tools Required: Jack and jack stands, socket set.
Raise the vehicle securely using a jack and jack stands.
Inspect engine and transmission mounts for cracks or excessive wear.
Replace any damaged mounts using a socket set, ensuring that the new mounts are torqued to the proper specifications.