FAULTBASE
Error CodesASKCars
© 2025 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
Home/Cars/Ford/Explorer/Fifth Generation (2011-2019)/my Ford Explorer Fifth Generation (2011-2019) has a P0301 code what does it mean

my Ford Explorer Fifth Generation (2011-2019) has a P0301 code what does it mean

Ford Explorer Fifth Generation (2011-2019)

Error Codes
Severity: highDifficulty: mediumError Code: P03012-4 hours
3 min read
537 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 Explorer 2011-2019. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0301
Component
Engine
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical components.
  • ⚠Allow the engine to cool before opening any engine components.

Symptoms

  • •Check engine light illuminated
  • •Rough idle
  • •Loss of power during acceleration
  • •Increased fuel consumption
  • •Engine stalling or hesitation
  • •Possible engine noise from the affected cylinder

Diagnostic Steps

  1. 1Scan for error codes using an OBD-II scanner to confirm P0301 and check for any additional codes.
  2. 2Inspect the spark plug and ignition coil for cylinder 1 for wear or damage.
  3. 3Check the fuel injector operation for cylinder 1 using a noid light or by listening for clicking sounds when the engine is running.
  4. 4Conduct a compression test on cylinder 1 to assess the cylinder's health.
  5. 5Perform a vacuum leak test to ensure there are no leaks affecting the air-fuel mixture.
  6. 6Examine the engine's wiring and connectors related to the ignition system and fuel injector for any signs of damage or corrosion.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Disconnect the battery to prevent electrical shock.
  • Allow the engine to cool down prior to starting work.

2. Replace Spark Plug

  • Remove the ignition coil from cylinder 1 by unscrewing the bolts and disconnecting the electrical connector.
  • Unscrew the spark plug using a spark plug socket and ratchet.
  • Inspect the old spark plug for signs of wear or damage.
  • Install a new spark plug, ensuring it is gapped correctly (usually around 0.044 inches for Ford engines).
  • Torque the spark plug to the manufacturer’s specifications (typically around 13 lb-ft).

3. Inspect and Replace Ignition Coil

  • Check the ignition coil for cylinder 1 for any visible damage.
  • If necessary, remove the ignition coil from its mount.
  • Install the new ignition coil and reconnect the electrical connector.
  • Ensure all connections are secure.

4. Test Fuel Injector

  • If the injector is faulty, remove it carefully from cylinder 1.
  • Replace with a new fuel injector, ensuring it is seated properly.
  • Reconnect the fuel line and electrical connector.

5. Reassemble and Reconnect Battery

  • Reinstall any components that were removed during diagnosis.
  • Reconnect the battery terminals securely.

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
  • Spark plug socket
  • Ratchet and extensions
  • Torque wrench
  • Noid light
  • Compression tester

Parts Required

  • Spark plug
  • Ignition coil
  • Fuel injector

Additional Information

Error CodeP0301
Component

Engine

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

6 items

Parts

3 items

Related Faults

  1. why is my Ford Explorer making a clicking noise when I turn the key?

    Learn how to diagnose and fix the clicking noise when turning the key in a Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

    Electrical5 symptoms

  2. why does my Ford Explorer ABS light keep coming on

    Learn how to diagnose and fix the ABS light issue in Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

    Brakes5 symptoms

  3. my Ford Explorer makes a hissing noise when I accelerate what does it mean

    Learn how to diagnose and fix the hissing noise during acceleration in Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

    Engine5 symptoms

  4. how to fix Ford Explorer transmission problems when shifting

    Learn how to diagnose and fix transmission problems in Ford Explorer. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

    Transmission6 symptoms

  5. why does my Ford Explorer AC blow warm air intermittently

    Learn how to diagnose and fix intermittent warm air from AC in Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

    HVAC5 symptoms

  6. my Ford Explorer makes a rattling noise when I accelerate what should I do

    Learn how to diagnose and fix a rattling noise during acceleration in Ford Explorer. Step-by-step guide with diagnostic procedures and repair instructions.

    Engine5 symptoms

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