Engine-Codes.com
Engine-Codes – Ford – P0307 Ford

P0307 Ford Code - Cylinder 7 Misfire Detected

Quick Answer

The P0307 code for Ford vehicles indicates that a misfire has been detected in cylinder 7 of the engine. Common causes include Faulty spark plug in cylinder 7, Malfunctioning ignition coil, Clogged fuel injector in cylinder 7. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0307 Ford indicates Cylinder 7 Misfire Detected.
Common causes
Common causes include Faulty spark plug in cylinder 7, Malfunctioning ignition coil, Clogged fuel injector in cylinder 7.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Aug 30, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0307 Ford Description

The P0307 code for Ford vehicles indicates that a misfire has been detected in cylinder 7 of the engine. This means that the fuel-air mixture in that specific cylinder is not igniting properly, leading to a lack of power, rough idling, and potential damage to the catalytic converter. A misfire can cause the engine to run inefficiently, leading to decreased fuel economy and overall performance. Ignoring this issue can result in further damage to the engine and other components.

OBDII Code P0307 Ford - Cylinder 7 Misfire Detected
P0307 Ford Code - Cylinder 7 Misfire Detected

Common Causes of P0307 Ford

  1. Faulty spark plug in cylinder 7
  2. Malfunctioning ignition coil
  3. Clogged fuel injector in cylinder 7
  4. Vacuum leak in the intake manifold
  5. Low compression in cylinder 7

Symptoms of P0307 Ford

  1. Rough idling
  2. Loss of power
  3. Engine vibration
  4. Decreased fuel efficiency
  5. Illuminated check engine light

How to Fix P0307 Ford

  1. Check and replace spark plug in cylinder 7
  2. Test and replace ignition coil for cylinder 7
  3. Clean or replace fuel injector in cylinder 7
  4. Inspect and repair any vacuum leaks in the intake manifold
  5. Perform a compression test on cylinder 7 and address any issues found

Cost to Fix P0307 Ford

The cost of repairing a cylinder misfire in a Ford vehicle can vary depending on the specific cause of the issue. On average, the cost of parts for this repair could range from $50 to $200, while labor costs may fall between $100 and $300. Overall, the total repair cost could range from $150 to $500. It's important to note that these are rough estimates and actual costs may vary based on the location and shop rates.

What does this mean?

Tech Notes for P0307 Ford

The P0307 code means that cylinder #7 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder #7. If the problem persists more tests need to be done to diagnose the problem. See "Possible Causes" for the most common problems.

There is a Factory Service Bulletin for the 2011 Ford Mustang:
2011 Ford Mustang Factory Service Bulletin OBDII Code P0307
The Factory Service Bulletin recommends reprogramming the Powertrain Control Module (PCM) to resolve the problem.





User Submitted Video

Need more information about the P0307 Ford code?

Need more information on how to fix the P0307 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0307 Ford code diagnosed by a professional: Find a repair shop in your area

Information for Specific Ford Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0307 Ford Code

1. What are common symptoms of OBDII code P0307 on a Ford vehicle?

- Common symptoms of code P0307, indicating a cylinder 7 misfire, may include engine hesitation, rough idling, loss of power, and increased fuel consumption.

2. What are some possible causes of a cylinder 7 misfire in a Ford vehicle?

- Potential causes of a cylinder 7 misfire in a Ford include faulty spark plugs, ignition coil issues, vacuum leaks, fuel injector problems, or low compression in the cylinder.

3. How can I diagnose the source of a cylinder 7 misfire in my Ford with code P0307?

- Diagnostic steps may include checking the spark plugs, inspecting the ignition coil, performing a compression test, scanning for vacuum leaks, and testing the fuel injector for proper operation.

4. Can driving with a cylinder 7 misfire cause further damage to my Ford engine?

- Continuing to drive with a cylinder 7 misfire can potentially lead to damage to the catalytic converter, O2 sensors, or other engine components, so it's advisable to address the issue promptly.

5. How can I repair a cylinder 7 misfire detected by OBDII code P0307 on my Ford?

- Repair options may involve replacing the spark plugs, ignition coil, fuel injector, or addressing any vacuum leaks or compression issues in cylinder 7 to resolve the misfire.

6. Is it recommended to clear the OBDII code P0307 after addressing a cylinder 7 misfire in a Ford?

- After completing the necessary repairs to resolve the cylinder 7 misfire, it is advisable to clear the OBDII code P0307 to reset the engine light and monitor for any recurring issues.

7. Can weather or environmental factors contribute to a cylinder 7 misfire with code P0307 on a Ford?

- Extreme weather conditions, such as very cold temperatures or heavy rain, can potentially exacerbate existing issues leading to a cylinder 7 misfire, so it's important to consider environmental factors.

8. Are there any maintenance tips to prevent cylinder misfires in a Ford and avoid OBDII code P0307?

- Regular maintenance practices, including timely spark plug replacement, fuel system cleaning, and periodic inspection of ignition components, can help prevent cylinder misfires and OBDII codes like P0307.

9. How long can I safely drive my Ford with a cylinder 7 misfire before getting it repaired?

- It is recommended to address a cylinder 7 misfire detected by OBDII code P0307 as soon as possible to prevent potential damage to the engine and ensure optimal performance and fuel efficiency.

10. Should I seek professional help to diagnose and repair a cylinder 7 misfire with code P0307 on my Ford?

- If you are not experienced with diagnosing and repairing engine misfires, it is advisable to seek the assistance of a qualified mechanic to accurately identify and fix the issue to avoid further complications.

Discuss the causes and fixes for P0307 Ford OBDII Code

Submit a New Comment

Code P0307 Ford comments

No comments found for this page.