Engine-Codes.com
Engine-Codes – Ford – P2004 Ford

P2004 Ford Code - Intake Manifold Runner Control Stuck Open Bank 1

Quick Answer

The P2004 Ford code indicates that the Intake Manifold Runner Control (IMRC) is stuck open on Bank 1. Common causes include Carbon buildup in the IMRC system, Faulty IMRC actuator or control module, Wiring or electrical issues. 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
P2004 Ford indicates Intake Manifold Runner Control Stuck Open Bank 1.
Common causes
Common causes include Carbon buildup in the IMRC system, Faulty IMRC actuator or control module, Wiring or electrical issues.
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 19, 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 P2004 Ford Description

The P2004 Ford code indicates that the Intake Manifold Runner Control (IMRC) is stuck open on Bank 1. The IMRC system is responsible for controlling airflow into the engine by adjusting the length of the intake runners. When the IMRC is stuck open, it can lead to an imbalance in the air-fuel mixture, causing issues with engine performance, fuel economy, and emissions. This can result in rough idling, decreased power and acceleration, increased fuel consumption, and potential damage to the engine over time if not addressed promptly.

OBDII Code P2004 Ford - Intake Manifold Runner Control Stuck Open Bank 1
P2004 Ford Code - Intake Manifold Runner Control Stuck Open Bank 1

Common Causes of P2004 Ford

  1. Carbon buildup in the IMRC system
  2. Faulty IMRC actuator or control module
  3. Wiring or electrical issues
  4. Vacuum leaks in the intake manifold
  5. Mechanical failure of the IMRC components

Symptoms of P2004 Ford

  1. Rough idling and engine misfires
  2. Decreased power and acceleration
  3. Poor fuel economy
  4. Check Engine Light illuminated
  5. Engine stalling or hesitation

How to Fix P2004 Ford

  1. Perform a diagnostic scan to confirm the P2004 code and identify the specific cause of the issue.
  2. Inspect the IMRC system for any signs of damage, carbon buildup, or loose connections.
  3. Clean or replace the IMRC actuator and control module as needed.
  4. Check and repair any wiring or electrical issues related to the IMRC system.
  5. Clear the trouble codes, reset the engine control module, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2004 Ford

The cost of repairing a P2004 Ford code can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that rates can be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive prices. It's recommended to get quotes from multiple repair shops to find the best deal for your specific situation.

What does this mean?

Tech Notes for P2004 Ford

There is a Factory Service Bulletin for the following Ford Models:
2005-2006 Ford Mustang
2006 Ford Explorer
2007 Ford Explorer Sport Trac
Ford Factory Service Bulletin OBDII Code P2004

2011 Ford Ranger w/2.3L




Ford Windstar, Ford Freestar




2006 Ford F150




User Submitted Video

Need more information about the P2004 Ford code?

Need more information on how to fix the P2004 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2004 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 P2004 Ford Code

1. What does OBDII code P2004 for a Ford mean?

The code P2004 indicates that the Intake Manifold Runner Control (IMRC) is stuck open on Bank 1 in the vehicle's engine.

2. What are the common symptoms of a P2004 code in a Ford vehicle?

Common symptoms of a P2004 code may include rough idling, decreased engine performance, decreased fuel efficiency, and the illumination of the check engine light on the dashboard.

3. What are the potential causes of the Intake Manifold Runner Control being stuck open on Bank 1 in a Ford?

Possible causes of the IMRC being stuck open on Bank 1 include a faulty IMRC actuator, a broken linkage, carbon buildup in the intake manifold, or wiring issues.

4. How can I diagnose the issue causing the P2004 code in my Ford?

Diagnosing the P2004 code may involve visually inspecting the IMRC components, checking for proper operation of the IMRC actuator, testing the electrical connections, and scanning for any related trouble codes.

5. Can I continue driving my Ford with a P2004 trouble code?

It is not recommended to continue driving the vehicle with a P2004 trouble code, as it can lead to further engine damage and decreased performance. It is best to address the issue promptly.

6. How can I repair the Intake Manifold Runner Control Stuck Open Bank 1 issue in my Ford?

Repairing the P2004 code may involve replacing the faulty IMRC actuator, cleaning out carbon buildup in the intake manifold, repairing any broken linkages, and ensuring proper electrical connections.

7. Will resetting the check engine light resolve the P2004 code in my Ford?

Resetting the check engine light may temporarily turn off the light, but it will not fix the underlying issue causing the P2004 code. It is important to diagnose and repair the problem to prevent further issues.

8. How much does it typically cost to repair a P2004 code in a Ford vehicle?

The cost of repairing a P2004 code can vary depending on the specific cause of the issue, labor costs, and parts needed. It is advisable to consult a professional mechanic for an accurate estimate.

9. Can I prevent the Intake Manifold Runner Control from getting stuck open in my Ford?

Regular maintenance, such as cleaning the intake manifold, inspecting the IMRC components, and addressing any issues promptly, can help prevent the IMRC from getting stuck open and triggering the P2004 code.

10. Is the P2004 code specific to Ford vehicles only?

While the P2004 code is commonly associated with Ford vehicles, it can also occur in other makes and models that are equipped with an Intake Manifold Runner Control system.

Discuss the causes and fixes for P2004 Ford OBDII Code

Submit a New Comment

  • replaced IMRC actuator an selenoid an vacume hoses an light is still on.

    Reply to Comment

  • What model and year is your Ford?

    Reply to Comment

  • I, too, replaced the actuator AND the solenoid -- And the light came back. 2003 Ford Ranger 2.3 XLT.

    Reply to Comment

  • The next step is to check the electrical connectors. Make sure the connectors are clean and properly connect to the actuator and solenoid. Also, check the vacuum hoses, any loose or damage hose could also trigger the code.

    Was the old solenoid rusted?

    Reply to Comment