how to diagnose Ford Explorer Sixth Generation (2020-present) transmission jerking problems

Ford Explorer Sixth Generation (2020-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

537 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-present). 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 pan to avoid burns.

Symptoms

•Transmission jerking during acceleration
•Rough shifting between gears
•Delayed engagement when selecting drive or reverse
•Unusual noises during gear changes (clunking or grinding)
•Check engine light illuminated
•Decreased fuel efficiency

Diagnostic Steps

1
Scan the vehicle's onboard computer using an OBD-II scanner to check for any error codes related to the transmission.
2
Inspect transmission fluid level and condition; look for discoloration or burnt smell.
3
Check for loose or damaged transmission mounts that could cause jerking.
4
Perform a visual inspection of the transmission wiring harness and connectors for signs of damage or corrosion.
5
Test the transmission solenoids using a multimeter to ensure they are functioning within specifications.
6
Check for any TSBs (Technical Service Bulletins) related to transmission issues for the specific model year.

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
•Torque wrench
•Multimeter
•Transmission fluid pump

Parts Required

•Transmission fluid (Mercon LV)
•Transmission filter (if applicable)
•Transmission pan gasket
•Transmission solenoids (if replacement is necessary)
•Transmission mounts (if replacement is necessary)

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Diagnostic Steps

1
Scan the vehicle's onboard computer using an OBD-II scanner to check for any error codes related to the transmission.
2
Inspect transmission fluid level and condition; look for discoloration or burnt smell.
3
Check for loose or damaged transmission mounts that could cause jerking.
4
Perform a visual inspection of the transmission wiring harness and connectors for signs of damage or corrosion.
5
Test the transmission solenoids using a multimeter to ensure they are functioning within specifications.
6
Check for any TSBs (Technical Service Bulletins) related to transmission issues for the specific model year.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle's battery to ensure safety during repairs.
Ensure the vehicle is parked on a level surface and secured with wheel chocks.

2. Fluid Change

Sub-steps:
- Remove the transmission pan using a socket set, ensuring to catch any fluid in a drain pan.
- Replace the transmission filter if applicable.
- Clean the transmission pan and magnet, removing any metal shavings.
- Reinstall the pan with a new gasket, torquing bolts to manufacturer specifications (typically around 10-12 ft-lbs).
- Refill the transmission with the correct type of fluid (typically Mercon LV for Ford) through the dipstick tube.

3. Solenoid Testing/Replacement

Sub-steps:
- Locate the transmission solenoids (usually housed in the valve body).
- Disconnect the wiring harness and remove the solenoid(s) using a socket set.
- Test each solenoid with a multimeter for proper resistance. Replace any that are out of spec.
- Reinstall the new or tested solenoid(s), ensuring proper alignment and connection.

4. Transmission Mount Inspection/Replacement

Sub-steps:
- Visually inspect the transmission mounts for cracks or signs of wear.
- If damaged, support the transmission with a jack and remove the old mounts.
- Install new transmission mounts, tightening bolts to manufacturer's torque specifications.