why does my Ford Explorer Fifth Generation (2011-2019) transmission jerk when I accelerate

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

623 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 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 the transmission.

Symptoms

•Jerking or shuddering during acceleration
•Delayed or harsh shifting between gears
•Check engine light illuminated
•Increased engine RPM without corresponding vehicle speed
•Unusual noises from the transmission (grinding or whining)

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related trouble codes.
2
Check the transmission fluid level and condition (color, smell) to ensure it is at the correct level and not contaminated.
3
Inspect the transmission fluid filter for clogs or restrictions.
4
Examine the transmission control module (TCM) for proper function and any signs of failure.
5
Conduct a road test to replicate the jerking issue while monitoring transmission performance.
6
Inspect the engine and transmission mounts for wear or damage that may cause misalignment.

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
•Transmission funnel
•Fluid pump
•Torque wrench
•Jack and jack stands

Parts Required

•Transmission fluid
•Transmission filter
•Transmission pan gasket
•Transmission control module (if needed)
•Engine and transmission mounts (if needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related trouble codes.
2
Check the transmission fluid level and condition (color, smell) to ensure it is at the correct level and not contaminated.
3
Inspect the transmission fluid filter for clogs or restrictions.
4
Examine the transmission control module (TCM) for proper function and any signs of failure.
5
Conduct a road test to replicate the jerking issue while monitoring transmission performance.
6
Inspect the engine and transmission mounts for wear or damage that may cause misalignment.

Solution

1. Preparation

Gather tools and materials required for the repair.
Ensure the vehicle is parked on a level surface and the engine is turned off.
Disconnect the battery to prevent electrical shorts.

2. Check and Replace Transmission Fluid

Tools Required: Socket set, transmission funnel, fluid pump.
Sub-steps:
1. Remove the transmission pan bolts using a socket wrench.
2. Carefully lower the transmission pan to avoid spilling fluid.
3. Inspect the old fluid for debris or burnt smell, and measure the amount drained.
4. Clean the pan and replace the filter if necessary.
5. Reinstall the pan with new gasket and torque bolts to manufacturer specifications (typically 8-10 ft-lbs).
6. Fill the transmission with the recommended type of fluid (check owner’s manual for specifications) using a funnel.

3. Inspect and Replace Transmission Control Module (if faulty)

Tools Required: Torque wrench, OBD-II scanner.
Sub-steps:
1. Locate the TCM, typically found near the transmission or under the dashboard.
2. Disconnect the electrical connectors from the TCM.
3. Remove the TCM from its mounting using a socket set.
4. Replace with a new TCM and secure it in place.
5. Reconnect the electrical connectors.
6. Clear any error codes using the OBD-II scanner and retest the vehicle.

4. Check Engine and Transmission Mounts

Tools Required: Jack and jack stands, socket set.
Sub-steps:
1. Lift the vehicle using a jack and securely place it on jack stands.
2. Inspect the engine and transmission mounts for any visible cracks or signs of wear.
3. If mounts are damaged, remove bolts securing the mounts using a socket set.
4. Replace with new mounts and torque to manufacturer specifications.
5. Lower the vehicle and perform a road test.