why does my Ford Explorer Sixth Generation (2020-present) jerk when shifting gears?

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

565 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 (2020-2023). Step-by-step guide with symptoms, diagnostics, 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 fluid system.

Symptoms

•Jerking or lurching sensation when shifting gears
•Delayed or harsh engagement during gear changes
•Check engine light illuminated
•Unusual noises when shifting (clunking or grinding sounds)
•Decreased fuel efficiency
•Transmission fluid leak or discoloration

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related fault codes.
2
Check transmission fluid level and condition; look for signs of contamination or burning.
3
Inspect the transmission control module (TCM) and wiring for damage or corrosion.
4
Test the vehicle’s throttle position sensor (TPS) with a multimeter for proper voltage output.
5
Perform a road test to replicate the jerking issue and observe specific conditions when it occurs (e.g., acceleration, deceleration).
6
Inspect the engine mounts for wear or damage, as this can affect shifting behavior.

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
•Funnel
•Drain pan

Parts Required

•Transmission fluid (Mercon LV)
•Transmission filter (if applicable)
•Throttle position sensor (if faulty)
•Transmission control module (if faulty)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any transmission-related fault codes.
2
Check transmission fluid level and condition; look for signs of contamination or burning.
3
Inspect the transmission control module (TCM) and wiring for damage or corrosion.
4
Test the vehicle’s throttle position sensor (TPS) with a multimeter for proper voltage output.
5
Perform a road test to replicate the jerking issue and observe specific conditions when it occurs (e.g., acceleration, deceleration).
6
Inspect the engine mounts for wear or damage, as this can affect shifting behavior.

Solution

1. Preparation

Gather tools and parts required.
Ensure the vehicle is parked on a level surface and the engine is cool.

2. Check and Replace Transmission Fluid

Sub-steps:
- Locate the transmission dipstick or fill plug.
- Remove the dipstick or plug and check the fluid level; add fluid if low.
- Inspect the fluid color and smell; if burnt or contaminated, proceed to replace.
- Drain the old transmission fluid using a drain pan.
- Replace the transmission filter if applicable (check service manual for location).
- Refill the transmission with fresh, manufacturer-recommended fluid (typically Mercon LV for 2020 Explorer).
Tools Required: Socket set, funnel, drain pan.

3. Inspect and Repair Transmission Control Module (TCM)

Sub-steps:
- Locate the TCM, usually near the transmission or under the dash.
- Disconnect the battery before working on electrical components.
- Remove the TCM connectors and inspect for corrosion or damage.
- Clean connections if necessary and reconnect.
- If a fault is detected in the TCM, replace it according to manufacturer's specifications.
Tools Required: Screwdriver, multimeter.

4. Throttle Position Sensor Testing and Replacement

Sub-steps:
- Locate the throttle position sensor on the throttle body.
- Disconnect the sensor wiring harness.
- Use a multimeter to check resistance and voltage output against specifications.
- If the sensor is faulty, replace it with a new one and reconnect.
Tools Required: Multimeter, socket set.