my Ford F-150 13th Generation (2015-2020) won't shift into gear what could be wrong

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

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

602 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 shifting issues in Ford F-150 13th Generation (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 before working on the transmission.

Symptoms

•Transmission warning light illuminated on the dashboard
•Difficulty or inability to shift from park to drive/reverse
•Grinding or unusual noises when attempting to shift
•Engine revs without corresponding vehicle movement
•Fluid leaks under the vehicle
•Erratic shifting behavior when engaging gears

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify transmission-related issues.
2
Check the transmission fluid level using the dipstick to ensure it is at the proper level.
3
Inspect the transmission fluid for color and smell; it should be red and not burnt.
4
Examine the transmission linkage for any signs of damage or misalignment.
5
Test the battery and alternator to ensure proper voltage supply to the transmission control module.
6
Verify that the brake light switch is functioning correctly, as it affects the shifting mechanism.

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
•Gasket scraper
•Transmission fluid pump

Parts Required

•Transmission fluid (Mercon LV)
•Transmission filter (if applicable)
•New transmission pan gasket
•Brake light switch (if necessary)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Symptoms

•Transmission warning light illuminated on the dashboard

•Difficulty or inability to shift from park to drive/reverse

•Grinding or unusual noises when attempting to shift

•Engine revs without corresponding vehicle movement

•Fluid leaks under the vehicle

•Erratic shifting behavior when engaging gears

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify transmission-related issues.
2
Check the transmission fluid level using the dipstick to ensure it is at the proper level.
3
Inspect the transmission fluid for color and smell; it should be red and not burnt.
4
Examine the transmission linkage for any signs of damage or misalignment.
5
Test the battery and alternator to ensure proper voltage supply to the transmission control module.
6
Verify that the brake light switch is functioning correctly, as it affects the shifting mechanism.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is on a level surface and engage the parking brake.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Check and Replace Transmission Fluid

Remove the transmission dipstick and wipe it clean.
Insert the dipstick back into the tube and remove it to check the fluid level.
If low, add the appropriate type of transmission fluid (usually Mercon LV for Ford).
If fluid is burnt or dirty, proceed to drain and replace the fluid.
To drain, remove the transmission pan bolts and gently pry the pan off. Use a gasket scraper to clean the surface.
Replace the transmission filter (if applicable) by removing it from the valve body.
Reinstall the transmission pan with a new gasket and torque the bolts to the manufacturer's specification (usually around 12-14 ft-lbs).

3. Inspect and Adjust Transmission Linkage

Locate the transmission linkage under the vehicle.
Inspect for any signs of wear or damage.
Adjust the linkage if misaligned, following the service manual's specifications.

4. Replace Brake Light Switch (if necessary)

Locate the brake light switch, usually mounted on the brake pedal.
Disconnect the electrical connector from the switch.
Remove the switch from its bracket by turning it counterclockwise.
Install the new switch and reconnect the electrical connector.

5. Reconnect Battery and Test

Reconnect the negative battery terminal.
Start the vehicle and test the transmission operation by attempting to shift into gear.