how to fix jerking transmission in my Ford F-150 13th Generation (2015-2020)

Ford F-150 13th Generation (2015-2020)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

546 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 F-150 13th Generation (2015-2020). Step-by-step guide with tools and parts required.

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 checking or replacing fluid.

Symptoms

•Jerking or lurching sensation during acceleration
•Harsh or delayed shifting between gears
•Check engine light illuminated
•Unusual noises (e.g., grinding or clunking) during shifting
•Loss of power during acceleration
•Fluid leaks under the vehicle

Diagnostic Steps

1
Scan the vehicle's onboard diagnostics using an OBD-II scanner to check for error codes.
2
Inspect the transmission fluid level and condition (check for discoloration or burnt smell).
3
Examine the transmission for visible leaks or damage to seals and gaskets.
4
Test the battery and alternator to rule out electrical issues affecting transmission control.
5
Check the transmission control module (TCM) for faults or updates.
6
Road test the vehicle to replicate the jerking issue and note conditions under which it 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
•Torque wrench
•Funnel
•Shop towels

Parts Required

•Transmission fluid (Mercon LV)
•Transmission filter
•Gasket for transmission pan

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Diagnostic Steps

1
Scan the vehicle's onboard diagnostics using an OBD-II scanner to check for error codes.
2
Inspect the transmission fluid level and condition (check for discoloration or burnt smell).
3
Examine the transmission for visible leaks or damage to seals and gaskets.
4
Test the battery and alternator to rule out electrical issues affecting transmission control.
5
Check the transmission control module (TCM) for faults or updates.
6
Road test the vehicle to replicate the jerking issue and note conditions under which it occurs.

Solution

1. Preparation

Tools Needed: OBD-II scanner, socket set, torque wrench, funnel, and shop towels.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the battery to prevent electrical shorts.

2. Transmission Fluid Change

Drain Old Fluid:
- Locate the transmission drain plug and remove it using the socket set.
- Allow the fluid to completely drain into a suitable container.
Replace Transmission Filter:
- Remove the transmission pan using the socket set, being careful of residual fluid.
- Replace the old filter with a new one, ensuring the gasket is in place.
Install Transmission Pan:
- Clean the transmission pan and apply a new gasket.
- Reinstall the pan and torque the bolts to manufacturer specifications (typically around 10-12 ft-lbs).
Add New Transmission Fluid:
- Using a funnel, pour new transmission fluid (consult the owner's manual for the correct type, usually Mercon LV) into the dipstick tube.
- Check the fluid level and add more as needed while the engine runs and is in park.

3. TCM Reprogramming (if necessary)

Reprogram TCM:
- Connect the OBD-II scanner to the vehicle and follow the prompts to reprogram the TCM if error codes indicate a software issue.
- Follow the manufacturer's instructions for the specific reprogramming procedure.

4. Visual and Physical Inspection

Inspect Wiring and Connectors:
- Check all wiring and connectors related to the transmission for any signs of wear or damage.
- Repair or replace any faulty connections as necessary.