FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
how to troubleshoot rough idle on my Ford F-150 13th Generation (2015-2020) - Ford F-150
Home/Cars/Ford/F-150/13th Generation (2015-2020)/how to troubleshoot rough idle on my Ford F-150 13th Generation (2015-2020)

how to troubleshoot rough idle on my Ford F-150 13th Generation (2015-2020)

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

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
565 words

Problem Statement

Learn how to troubleshoot and fix rough idle issues on your Ford F-150 (2015-2020). Step-by-step guide with diagnostic steps and repair instructions.

Affected Component
Engine
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect battery before working on electrical systems.
  • •Allow the engine to cool before inspecting components.

Symptoms

  • •Check engine light illuminated
  • •Engine vibrations felt in the cabin
  • •Fluctuating RPMs at idle
  • •Stalling or hesitation during acceleration
  • •Poor fuel economy
  • •Increased emissions

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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
  • •Screwdriver set
  • •Throttle body cleaner
  • •Soft cloth
  • •Fuel pressure gauge
  • •Socket set
  • •Vacuum gauge
  • •Hose

Parts Required

  • •Air filter
  • •Throttle body gasket (if applicable)
  • •Spark plugs
  • •Fuel filter
  • •Ignition coils (if needed)

Additional Information

Affected Component
Engine
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
8 items
Parts Required
5 items

Related Faults

Loading...

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation
Solution
1. Preparation
  • Gather necessary tools and parts.
  • Disconnect the battery to ensure safety while working on electrical components.
2. Air Intake Inspection
  • Tools Required: Screwdriver set, flashlight
  • Remove the air intake duct by loosening the clamps.
  • Inspect the duct for cracks or loose connections.
  • Check the air filter; replace it if clogged.
3. Throttle Body Cleaning
  • Tools Required: Throttle body cleaner, soft cloth
  • Remove the throttle body assembly after disconnecting the electrical connector and vacuum lines.
  • Clean the throttle body with throttle body cleaner and a soft cloth.
  • Reinstall the throttle body and reconnect all components.
4. Fuel System Check
  • Tools Required: Fuel pressure gauge
  • Locate the fuel rail and attach the fuel pressure gauge.
  • Turn the ignition to the "on" position (do not start) and check the fuel pressure against manufacturer specifications.
  • If the pressure is low, replace the fuel pump or fuel filter as needed.
5. Ignition System Inspection
  • Tools Required: Socket set, spark plug socket
  • Remove the spark plugs and inspect for fouling or wear.
  • Replace any damaged or worn spark plugs with OEM parts.
  • Check ignition coils for cracks or malfunction; replace if necessary.
6. Vacuum Leak Test
  • Tools Required: Vacuum gauge, hose
  • Connect the vacuum gauge to a vacuum source on the intake manifold.
  • Start the engine and observe the gauge reading; a low reading may indicate a leak.
  • Use a smoke machine or spray soapy water around vacuum lines to locate leaks.