what could be causing my Ford Explorer's transmission to jerk when shifting

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

531 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 issues 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 the battery before working on electrical systems.
•Allow the engine to cool before working on the transmission.

Symptoms

•Jerking or harsh shifting during gear changes
•Delayed or erratic engagement of gears
•Unusual noises during shifting (clunking or grinding)
•Slipping out of gear or difficulty staying in gear
•Dashboard warning lights illuminated (such as the check engine light)

Diagnostic Steps

1
Scan the vehicle’s onboard computer using an OBD-II scanner to check for error codes related to transmission issues.
2
Inspect the transmission fluid level and condition; look for signs of contamination (burnt smell, dark color).
3
Check for leaks in the transmission system, including fluid leaks around the transmission pan and seals.
4
Examine the transmission control module (TCM) and wiring for any faults or loose connections.
5
Test the vehicle's throttle position sensor (TPS) and ensure it’s functioning correctly.
6
Perform a visual inspection of the transmission mounts for wear or damage.

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
•Transmission fluid pump
•Fluid catch pan
•Funnel
•Socket set
•Gasket scraper
•New transmission filter
•New transmission pan gasket
•Torque wrench

Parts Required

•Transmission fluid (manufacturer-recommended type)
•Transmission filter
•Transmission pan gasket

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Diagnostic Steps

1
Scan the vehicle’s onboard computer using an OBD-II scanner to check for error codes related to transmission issues.
2
Inspect the transmission fluid level and condition; look for signs of contamination (burnt smell, dark color).
3
Check for leaks in the transmission system, including fluid leaks around the transmission pan and seals.
4
Examine the transmission control module (TCM) and wiring for any faults or loose connections.
5
Test the vehicle's throttle position sensor (TPS) and ensure it’s functioning correctly.
6
Perform a visual inspection of the transmission mounts for wear or damage.

Solution

1. Preparation

Ensure the vehicle is parked on a flat surface and the engine is off.
Disconnect the battery to ensure safety during the repair.
Gather necessary tools and parts.

2. Check and Replace Transmission Fluid

Tools Required: Transmission fluid pump, fluid catch pan, funnel.
Sub-steps:
1. Remove the transmission fluid dipstick and check fluid level.
2. If fluid is low or contaminated, drain the old transmission fluid into a catch pan.
3. Replace with manufacturer-recommended transmission fluid using a fluid pump.
4. Recheck fluid level with the dipstick and ensure it is within the specified range.

3. Inspect and Replace Transmission Filters

Tools Required: Socket set, gasket scraper, new transmission filter and gasket.
Sub-steps:
1. Remove the transmission pan using a socket set, taking care to collect any spilled fluid.
2. Remove the old filter and replace it with a new one.
3. Clean the pan and replace the gasket with a new one to prevent leaks.
4. Reinstall the transmission pan and tighten bolts to the specified torque.

4. Reset Transmission Control Module (TCM)

Tools Required: OBD-II scanner, battery terminal wrench.
Sub-steps:
1. Reconnect the battery after completing previous repairs.
2. Use the OBD-II scanner to clear any transmission-related error codes.
3. Perform a TCM reset as per the manufacturer’s instructions using the scanner.