my Ford F-150 13th Generation (2015-2020) transmission jerks when shifting

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

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

549 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 F-150 (2015-2020). Step-by-step guide with symptoms, diagnostic steps, 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 pan.

Symptoms

•Jerking or harsh shifting during acceleration
•Delayed engagement when shifting from park to drive or reverse
•Unusual noises (clunking or grinding) while shifting
•Check engine light illuminated
•Decreased fuel efficiency
•Fluid leaks under the vehicle

Diagnostic Steps

1
Scan the vehicle's onboard diagnostic system using an OBD-II scanner to check for error codes.
2
Inspect the transmission fluid level and condition; look for signs of contamination or burning.
3
Check the transmission mount for signs of wear or damage.
4
Inspect the vehicle's throttle position sensor (TPS) for proper operation.
5
Examine the transmission control module (TCM) for any software updates or faults.
6
Test drive the vehicle to replicate the jerking issue and identify specific conditions (speed, load) when 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
•Transmission fluid pump
•Funnel

Parts Required

•Transmission fluid
•Transmission filter (if applicable)
•Transmission mount (if worn)

Related Faults

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Diagnostic Steps

1
Scan the vehicle's onboard diagnostic system using an OBD-II scanner to check for error codes.
2
Inspect the transmission fluid level and condition; look for signs of contamination or burning.
3
Check the transmission mount for signs of wear or damage.
4
Inspect the vehicle's throttle position sensor (TPS) for proper operation.
5
Examine the transmission control module (TCM) for any software updates or faults.
6
Test drive the vehicle to replicate the jerking issue and identify specific conditions (speed, load) when it occurs.

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, torque wrench, transmission fluid pump, and a funnel.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Remove the transmission dipstick and check the fluid level; add fluid if low.
2. If the fluid is dark or has a burnt smell, prepare to replace it.
3. Place a drain pan under the transmission pan, remove the pan bolts, and carefully lower the pan to drain old fluid.
4. Replace the transmission filter if applicable (consult the service manual for specific procedures).
5. Install the transmission pan with a new gasket and torque the bolts to the manufacturer’s specifications (typically around 12-15 ft-lbs).
6. Fill the transmission with new fluid using the recommended type (consult the owner’s manual for specifications).

3. Inspect and Replace Transmission Mount

Sub-steps:
1. Raise the vehicle using jack stands for safety.
2. Locate the transmission mount and visually inspect for cracks or wear.
3. If damaged, remove the mounting bolts and replace with a new mount.
4. Reinstall the bolts and torque them to specifications.

4. Update Transmission Control Module (TCM)

Sub-steps:
1. Reconnect the negative battery terminal.
2. Use the OBD-II scanner to check for TCM updates or faults.
3. If updates are available, follow the manufacturer’s instructions to update the TCM software.