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

- Code Popularity: 134,786 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P2004 Ford?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Intake Manifold Runner Control (IMRC) actuator
  • Intake Manifold Runner Control actuator harness is open or shorted
  • Intake Manifold Runner Control actuator circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)
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How to Fix the DTC P2004 Ford?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

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




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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2004 Ford code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P2004 Ford Description

The Intake Manifold Runner Control (IMRC) is an electrically actuated system consisting of a motorized actuator with an attaching linkage for each housing on each bank. The linkage attaches to the housing butterfly plate levers. Each IMRC housing is an aluminum casting with two intake air passages for each cylinder. One passage is always open, and the other is opened and closed with a butterfly valve plate. The housing uses a return spring to hold the plates closed. The motorized actuator houses internal switches to provide feedback to the Powertrain Control Module (PCM), indicating linkage and plate position. Under about 3000 rpm, the vacuum solenoid will be energized. This will allow the manifold vacuum to be applied and the butterfly valve plates to stay closed. Above approximately 3000 rpm, the vacuum solenoid will be de-energized. This will allow a vacuum to vent from the actuator and the butterfly valve plates to open. The Diagnostic Trouble Code (DTC) sets when the IMRC is commanded close, but the IMRC monitor indicates open.

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

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Code P2004 Ford comments

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