FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
why does my Ford F-150 13th Generation (2015-2020) check engine light keep coming on - Ford F-150
Home/Cars/Ford/F-150/13th Generation (2015-2020)/why does my Ford F-150 13th Generation (2015-2020) check engine light keep coming on

why does my Ford F-150 13th Generation (2015-2020) check engine light keep coming on

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

Error Codes
1-3 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
525 words

Problem Statement

Learn how to diagnose and fix the check engine light issue in Ford F-150 13th Generation (2015-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component
Engine
Estimated Time
1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical components.
  • •Allow the engine to cool before performing any inspections.

Symptoms

  • •Check engine light illuminated
  • •Rough idle or engine misfires
  • •Decreased fuel economy
  • •Engine stalling during operation
  • •Poor acceleration or loss of power
  • •Unusual smells from exhaust

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
  • •Socket set
  • •Fuel pressure gauge
  • •Torque wrench

Parts Required

  • •New gas cap
  • •Spark plugs
  • •Ignition coils (if needed)
  • •Vacuum lines (if damaged)

Additional Information

Affected Component
Engine
Estimated Time
1-3 hours
Difficulty
medium
Severity
medium
Tools Required
4 items
Parts Required
4 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 tools and parts required for the repair.
  • Ensure the vehicle is parked on a flat surface and the engine is cool.
  • Disconnect the battery to prevent electrical shorts.
2. Addressing Error Codes
  • Retrieve Codes: Connect the OBD-II scanner to the diagnostic port and record all trouble codes.
  • Research Codes: Use a repair manual or online resources to determine the meaning of each code.
3. Inspect and Replace Components
  • Gas Cap:

    • Check for cracks or damage.
    • If defective, replace with a new gas cap.
  • Spark Plugs and Ignition Coils:

    • Remove the ignition coils using a socket set.
    • Inspect spark plugs for wear; replace if necessary.
    • Install new spark plugs and ignition coils, torquing to manufacturer specifications (typically around 12-15 lb-ft).
  • Vacuum Leaks:

    • Visually inspect vacuum lines for cracks or disconnections.
    • Replace any damaged hoses with new vacuum line.
4. Fuel System Check
  • Fuel Pressure Test:
    • Connect a fuel pressure gauge to the fuel rail.
    • Start the engine and monitor pressure readings; compare to specifications (typically 30-40 psi for F-150).
    • If pressure is low, consider replacing the fuel pump.
5. Clear Codes and Reconnect Battery
  • Once repairs are made, reconnect the battery.
  • Use the OBD-II scanner to clear any trouble codes.