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

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

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

543 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 F-150 (2015-2020). 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 completely before starting work on the transmission.

Symptoms

•Transmission jerks or lurches during gear shifts
•Delayed engagement when shifting from park to drive or reverse
•Unusual noises during shifting, such as clunking or grinding
•Check engine light illuminated
•Fluctuating RPMs during acceleration

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify potential transmission-related issues.
2
Check transmission fluid level and condition; low or dirty fluid can cause shifting problems.
3
Inspect the transmission fluid cooler lines for leaks or blockages.
4
Examine the transmission mount for wear or damage that could affect alignment.
5
Test the transmission control module (TCM) for proper function and software updates.
6
Inspect electrical connections and wiring related to the transmission for corrosion or damage.

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
•Transmission fluid level gauge
•Torque wrench
•Multimeter

Parts Required

•Transmission fluid (manufacturer-recommended type)
•Transmission filter (if applicable)
•Transmission mount (if damaged)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify potential transmission-related issues.
2
Check transmission fluid level and condition; low or dirty fluid can cause shifting problems.
3
Inspect the transmission fluid cooler lines for leaks or blockages.
4
Examine the transmission mount for wear or damage that could affect alignment.
5
Test the transmission control module (TCM) for proper function and software updates.
6
Inspect electrical connections and wiring related to the transmission for corrosion or damage.

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, transmission fluid level gauge, torque wrench, multimeter.
Ensure the vehicle is parked on a level surface and the engine is cool. Disconnect the battery to prevent electrical shocks.

2. Fluid Check and Replacement

Check Fluid Level:
- Locate the transmission dipstick (if equipped) or use a fluid level gauge.
- Remove the dipstick, wipe it clean, reinsert, and pull it out again to check the fluid level.
Fluid Replacement (if necessary):
- Drain the old transmission fluid using a drain pan, and replace it with the manufacturer-recommended fluid.
- Replace the transmission filter if equipped, ensuring to install a new gasket.

3. Inspect and Replace Transmission Mount

Remove Component:
- Use a socket set to unbolt the transmission mount from the frame and transmission.
Inspect Mount:
- Check for cracks or excessive wear; if damaged, replace with a new mount.
Installation:
- Position the new mount and torque bolts to manufacturer specifications (usually around 35-50 lb-ft).

4. Electrical and Control Module Check

Inspect Wiring:
- Visually check all wiring and connectors leading to the TCM for signs of wear or corrosion.
Test TCM:
- Use a multimeter to ensure proper voltage and continuity as per service manual specifications.
Reprogram TCM (if necessary):
- Use the OBD-II scanner to check for software updates or reprogram the TCM if required.