how to fix jerking transmission in my Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

577 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 jerking transmission issues 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 the transmission pan.

Symptoms

•Jerking or harsh shifting during acceleration
•Delayed engagement when shifting from park to drive/reverse
•Slipping or loss of power during acceleration
•Check engine light illuminated
•Unusual noises (grinding or whining) during shifting

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; look for signs of contamination or burning.
3
Inspect the transmission filter for clogs or restrictions.
4
Examine the transmission control module (TCM) connections for corrosion or loose connections.
5
Test the vehicle's throttle position sensor (TPS) for proper functioning and response.
6
Perform a road test to monitor shifts and identify specific conditions under which the jerking 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
•Transmission fluid pump
•Torque wrench
•Fluid catch pan
•Safety goggles
•Gloves
•Multimeter

Parts Required

•Transmission fluid
•Transmission filter
•Gasket for transmission pan
•Throttle position sensor (if needed)

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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; look for signs of contamination or burning.
3
Inspect the transmission filter for clogs or restrictions.
4
Examine the transmission control module (TCM) connections for corrosion or loose connections.
5
Test the vehicle's throttle position sensor (TPS) for proper functioning and response.
6
Perform a road test to monitor shifts and identify specific conditions under which the jerking occurs.

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, transmission fluid pump, torque wrench, fluid catch pan, safety goggles, gloves.
Ensure the vehicle is on a flat surface and the engine is off.
Disconnect the battery to prevent electrical issues during the repair.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Remove the transmission dipstick and wipe it clean.
2. Check the fluid level and condition; if dirty or low, proceed with a fluid change.
3. Place a fluid catch pan under the transmission pan.
4. Remove the transmission pan bolts using a socket set, then carefully remove the pan.
5. Replace the old transmission filter with a new one.
6. Clean the mating surface of the transmission pan and install a new gasket.
7. Reinstall the transmission pan using the correct torque specifications (typically 10-12 ft-lbs).
8. Refill the transmission with the manufacturer-recommended fluid through the dipstick tube.

3. Inspect and Repair Electrical Connections

Sub-steps:
1. Inspect the TCM harness for any signs of damage or corrosion.
2. Clean any corrosion from connectors using contact cleaner.
3. Ensure all connections are secure and properly seated.
4. Reconnect the battery after completing the inspection.

4. Test Throttle Position Sensor

Sub-steps:
1. Disconnect the TPS connector.
2. Use a multimeter to check the resistance across the TPS terminals; it should vary smoothly as the throttle is opened and closed.
3. If the TPS is faulty, replace it with a new unit and reconnect the harness.