why does my Ford Explorer's transmission jerk when shifting

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

564 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. 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 radiator or performing fluid changes.

Symptoms

•Jerking or harsh shifting between gears
•Delayed engagement when shifting from park to drive or reverse
•Unusual noises, such as clunking or grinding, during shifts
•Check engine light illuminated
•Fluid leaks underneath the vehicle
•Fluctuating RPMs during acceleration

Diagnostic Steps

1
Scan the vehicle's computer system using an OBD-II scanner for any error codes related to the transmission.
2
Inspect the transmission fluid level and condition; look for signs of contamination or burning smell.
3
Check for any visible leaks around the transmission seals and pan.
4
Test the transmission control module (TCM) and related sensors for proper function.
5
Examine the condition of the transmission filter for blockages or damage.
6
Perform a road test to observe shifting patterns and any additional symptoms.

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
•Fluid catch pan
•Funnel

Parts Required

•Transmission filter kit
•New transmission fluid (Mercon LV)

Related Faults

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Diagnostic Steps

1
Scan the vehicle's computer system using an OBD-II scanner for any error codes related to the transmission.
2
Inspect the transmission fluid level and condition; look for signs of contamination or burning smell.
3
Check for any visible leaks around the transmission seals and pan.
4
Test the transmission control module (TCM) and related sensors for proper function.
5
Examine the condition of the transmission filter for blockages or damage.
6
Perform a road test to observe shifting patterns and any additional symptoms.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is on a level surface and secure it with jack stands if elevated.
Disconnect the battery to prevent electrical shorts during repairs.

2. Fluid Change and Filter Replacement

Tools Required: Socket set, torque wrench, fluid catch pan, funnel, transmission filter kit, new transmission fluid.
Remove the transmission pan by loosening the bolts using a socket wrench.
- Sub-steps:
  - Carefully detach the pan to avoid damaging the gasket.
  - Allow the old fluid to drain completely into the catch pan.
Inspect the old filter and replace it with a new one.
- Sub-steps:
  - Remove the old filter by unscrewing it.
  - Install the new filter, ensuring it is properly seated.
Clean the transmission pan and replace the gasket.
Reinstall the transmission pan and torque the bolts to the manufacturer’s specifications (generally around 10-12 ft-lbs).

3. Transmission Control Module (TCM) Reset

Reconnect the battery.
Using the OBD-II scanner, clear any error codes stored in the vehicle’s computer.
Perform a TCM reset if necessary, following the manufacturer's guidelines.

4. Final Fluid Check and Top Off

Start the vehicle and let it idle for a few minutes.
With the engine running, check the transmission fluid level using the dipstick.
- Sub-steps:
  - Add the appropriate type of transmission fluid (usually Mercon LV for Ford) if low.
  - Ensure that the fluid is at the correct level when the engine is warm.