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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
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
531 words

Problem Statement

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

Affected Component
Engine
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical components.
  • •Allow the engine to cool before working on any components to avoid burns.

Symptoms

  • •Check engine light illuminated
  • •Rough idle when the engine is running
  • •Decreased fuel efficiency
  • •Engine stalling during acceleration
  • •Noticeable engine noise (knocking or pinging)
  • •Poor acceleration response

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
  • •Torque wrench
  • •MAF cleaner
  • •Screwdrivers

Parts Required

  • •Spark plugs
  • •Ignition coils (if needed)
  • •Mass air flow (MAF) sensor (if needed)
  • •Gas cap (if needed)

Additional Information

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

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Disconnect the battery negative terminal to ensure safety.
  • Ensure the vehicle is on a level surface and secure with jack stands if necessary.
2. Replace Faulty Components

A. Spark Plugs and Ignition Coils

  • Remove the engine cover if applicable.
  • Disconnect the ignition coil connectors.
  • Remove the bolts securing the ignition coils and gently pull them out.
  • Remove old spark plugs using a spark plug socket.
  • Install new spark plugs, torque to manufacturer specifications (typically around 13-15 lb-ft).
  • Reinstall ignition coils and reconnect connectors.

B. Mass Air Flow (MAF) Sensor

  • Locate the MAF sensor in the air intake duct.
  • Disconnect the electrical connector from the MAF sensor.
  • Unscrew the MAF sensor from the housing and remove it.
  • Clean the MAF sensor with MAF cleaner; do not touch the sensor element.
  • Reinstall the MAF sensor and reconnect the electrical connector.
3. Check and Replace Gas Cap
  • Inspect the gas cap for cracks or a faulty seal.
  • If necessary, replace the gas cap with a new one, ensuring it is tightened properly.
4. Clear Error Codes
  • Reconnect the battery terminal.
  • Use the OBD-II scanner to clear any existing error codes from the vehicle's computer.