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Home/Cars/Ford/F-150/Fourteenth Generation (2021-present)/what does the P0302 code mean for my Ford F-150 Fourteenth Generation (2021-present)?

what does the P0302 code mean for my Ford F-150 Fourteenth Generation (2021-present)?

Ford F-150 Fourteenth Generation (2021-present)

Severity: highDifficulty: mediumError Code: P03022-4 hours
3 min read
514 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 P0302 cylinder 2 misfire in Ford F-150. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0302
Component
Engine
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems.
  • ⚠Allow engine to cool before beginning repairs.

Symptoms

  • •Check engine light illuminated
  • •Rough idle
  • •Loss of power during acceleration
  • •Increased fuel consumption
  • •Engine stalling or hesitation

Diagnostic Steps

  1. 1Scan for error codes using an OBD-II scanner to confirm P0302 and check for additional related codes.
  2. 2Inspect the spark plug and ignition coil for cylinder 2 for signs of wear or damage.
  3. 3Check the fuel injector for cylinder 2 for proper operation and signs of blockage.
  4. 4Conduct a compression test on cylinder 2 to assess engine health.
  5. 5Inspect the engine wiring and connectors related to the ignition system and fuel injector for faults.

Solution

Solution

1. Preparation

  • Gather tools and parts.
  • Disconnect the negative battery terminal to ensure safety.

2. Inspect and Replace Ignition Components

  1. Remove Ignition Coil:

    • Unscrew the bolts holding the ignition coil in place.
    • Gently pull the ignition coil out of the spark plug well.
  2. Replace Spark Plug:

    • Use a spark plug socket to remove the spark plug from cylinder 2.
    • Inspect the old spark plug for damage; replace with a new spark plug if necessary (gap to specification).
    • Install the new spark plug and torque to manufacturer specifications (typically around 13-15 lb-ft).
  3. Reinstall Ignition Coil:

    • Place the ignition coil back into the spark plug well.
    • Secure it with the bolts and reconnect the electrical connector.

3. Fuel Injector Inspection and Cleaning

  1. Remove Fuel Injector:

    • Disconnect the fuel line and electrical connector from the injector.
    • Remove the retaining clips and pull the injector out of the rail.
  2. Clean or Replace Injector:

    • If cleaning, use an appropriate fuel injector cleaner and follow the manufacturer's instructions.
    • If damaged, replace the injector with a new one.
  3. Reinstall Injector:

    • Insert the cleaned or new injector back into the fuel rail.
    • Reconnect the fuel line and electrical connector securely.

4. Final Checks

  • Reconnect the negative battery terminal.
  • Start the engine and allow it to idle to ensure smooth operation.

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
  • Spark plug socket
  • Fuel injector cleaner (if applicable)

Parts Required

  • Spark plug for cylinder 2
  • Ignition coil for cylinder 2 (if faulty)
  • Fuel injector for cylinder 2 (if faulty)

Additional Information

Error CodeP0302
Component

Engine

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

5 items

Parts

3 items

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