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how to fix P0301 misfire code on my Ford F-150 13th Generation (2015-2020) - Ford F-150
Home/Cars/Ford/F-150/13th Generation (2015-2020)/how to fix P0301 misfire code on my Ford F-150 13th Generation (2015-2020)

how to fix P0301 misfire code on my Ford F-150 13th Generation (2015-2020)

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

Error Codes
2-4 hours
Time
medium
Difficulty
high
Severity
Error Code: P0301
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
655 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 P0301 cylinder 1 misfire in Ford F-150 13th Generation. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0301
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 the ignition system.

Symptoms

  • •Check engine light illuminated
  • •Engine rough idle
  • •Loss of power during acceleration
  • •Increased fuel consumption
  • •Engine stalling under load

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
  • •Spark plug socket
  • •Ratchet and extensions
  • •Multimeter
  • •Compression tester

Parts Required

  • •Spark plug (specific to engine type)
  • •Ignition coil (if needed)
  • •Fuel injector (if needed)

Additional Information

Error Code
P0301
Affected Component
Engine
Estimated Time
2-4 hours
Difficulty
medium
Severity
high
Tools Required
6 items
Parts Required
3 items

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a flat surface and the engine is cool.
  • Disconnect the negative battery terminal to prevent electrical shorts.
2. Inspect and Replace Spark Plug
  1. Remove the engine cover if applicable.
  2. Remove the ignition coil from cylinder 1:
    • Disconnect the electrical connector.
    • Unbolt the coil using a socket set.
  3. Remove the spark plug using a spark plug socket and ratchet.
  4. Inspect the old spark plug for wear or deposits. Replace if necessary:
    • Ensure the gap is set to manufacturer specifications (typically 0.028-0.031 inches for Ford).
  5. Install the new spark plug and torque it to 13 lb-ft.
  6. Reinstall the ignition coil and reconnect the electrical connector.
3. Check and Replace Ignition Coil (if necessary)
  1. If the spark plug inspection shows no issues, test the ignition coil:
    • Swap the ignition coil from cylinder 1 with another cylinder (e.g., cylinder 2).
    • Clear the P0301 code and drive the vehicle to see if the misfire moves to the new cylinder.
  2. If the misfire follows the ignition coil, replace it:
    • Disconnect the electrical connector and unbolt the coil.
    • Install the new ignition coil and reconnect the electrical connector.
4. Inspect Fuel Injector (if necessary)
  1. If the misfire persists after replacing the spark plug and ignition coil, check the fuel injector:
    • Disconnect the wiring harness from the fuel injector on cylinder 1.
    • Use a multimeter to test for proper resistance (typically 12-16 ohms).
  2. If the injector is faulty, replace it:
    • Remove the fuel rail if necessary to access the injector.
    • Install a new fuel injector and ensure proper seating.
5. Verify Compression (if necessary)
  1. If all else fails, perform a compression test on cylinder 1:
    • Remove the spark plug and insert a compression tester.
    • Crank the engine and record the pressure.
  2. If compression is below manufacturer specifications (typically around 120 psi), further investigation is needed for possible internal engine issues.