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Home/Cars/Ford/F-150/13th Generation (2015-2020)/how to fix a transmission that slips in my Ford F-150 13th Generation (2015-2020)

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

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

Severity: highDifficulty: medium3-5 hours
3 min read
527 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 a slipping transmission in your Ford F-150 13th Generation (2015-2020). Step-by-step guide with symptoms and solutions.

Component
Transmission
Repair Time
3-5 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems.
  • ⚠Allow the engine to cool before performing any maintenance.

Symptoms

  • •Check engine light illuminated
  • •Higher-than-normal engine RPMs without corresponding acceleration
  • •Transmission fluid leaking
  • •Delayed or harsh shifting
  • •Burning smell from the transmission
  • •Unusual noises during gear changes

Diagnostic Steps

  1. 1Scan for error codes using an OBD-II scanner to identify any transmission-related issues.
  2. 2Check the transmission fluid level and condition; inspect for contamination.
  3. 3Inspect the transmission fluid cooler lines and connections for leaks or damage.
  4. 4Perform a visual inspection of the transmission for external leaks or physical damage.
  5. 5Test the transmission solenoids and sensors using a multimeter to ensure they are functioning correctly.
  6. 6Check for any software updates or reprogramming requirements for the transmission control module.

Solution

Solution

1. Preparation

  • Gather tools and materials.
  • Disconnect the negative battery terminal to prevent electrical shorts.

2. Check and Replace Transmission Fluid

  • Tools Required: Transmission fluid pump, wrench set, funnel.
  • Sub-steps:
    1. Raise the vehicle securely using jack stands.
    2. Remove the transmission pan bolts and carefully lower the pan.
    3. Drain the old transmission fluid into a suitable container.
    4. Replace the transmission filter if applicable.
    5. Clean the transmission pan and magnet to remove any debris.
    6. Reinstall the pan with a new gasket and torque bolts to manufacturer specifications.
    7. Refill the transmission with the appropriate type and amount of fluid using a funnel.

3. Inspect and Replace Transmission Solenoids

  • Tools Required: Socket set, torque wrench, multimeter.
  • Sub-steps:
    1. Locate the transmission solenoids based on the service manual.
    2. Disconnect the wiring harness from each solenoid.
    3. Remove the solenoids and test with a multimeter for resistance; replace if faulty.
    4. Install new solenoids and reconnect the wiring harness.
    5. Torque bolts to manufacturer specifications.

4. Reprogram or Update Transmission Control Module

  • Tools Required: OBD-II scanner with programming capabilities.
  • Sub-steps:
    1. Connect the OBD-II scanner to the vehicle’s diagnostic port.
    2. Check for software updates or reprogramming available for the transmission control module.
    3. Follow the scanner prompts to update or reprogram the module if necessary.

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
  • Transmission fluid pump
  • Wrench set
  • Funnel
  • Socket set
  • Torque wrench
  • Multimeter

Parts Required

  • Transmission fluid
  • Transmission filter (if applicable)
  • Gasket for transmission pan
  • Transmission solenoids (if required)

Additional Information

Component

Transmission

Repair Time

3-5 hours

Difficulty

medium

Severity

high

Tools

7 items

Parts

4 items

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