AutoCodes – Ford – P1518 2001 Ford F150

P1518 2001 Ford F150 Code - Intake Manifold Runner Control Stuck Open

Quick Answer

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. Common causes include 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. 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: P1518 2001 Ford F150 indicates Intake Manifold Runner Control Stuck Open.
Common causes: Common causes include 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.
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.

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Code Popularity 12,443

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 03, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1518 2001 Ford F150 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 P1518 2001 Ford F150 - Intake Manifold Runner Control Stuck Open - AutoCodes.com — P1518 2001 Ford F150 Code - Intake Manifold Runner Control Stuck Open

What does this mean?

What are the Possible Causes of the DTC P1518 2001 Ford F150?

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)

How to Fix the DTC P1518 2001 Ford F150?

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1518 2001 Ford F150 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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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 P1518 2001 Ford F150 Code

1. What are the common symptoms of OBDII code P1518 in a 2001 Ford F150?

When the Intake Manifold Runner Control is stuck open, symptoms can include rough idling, decreased engine performance, and the Check Engine light illuminating.

2. What causes the Intake Manifold Runner Control to get stuck open in a 2001 Ford F150?

Common causes of this issue include carbon buildup in the intake manifold, a faulty Intake Manifold Runner Control (IMRC) actuator, or a broken linkage.

3. How can I diagnose the Intake Manifold Runner Control Stuck Open issue in my 2001 Ford F150?

A diagnostic scan tool can retrieve the OBDII code P1518, and further inspection can be done by visually checking the IMRC components for any signs of damage or obstruction.

4. Can I drive my 2001 Ford F150 with the Intake Manifold Runner Control Stuck Open?

While it may still be possible to drive the vehicle, it is not recommended as it can lead to decreased fuel efficiency and potential engine damage due to improper air and fuel mixture.

5. What are the repair options for fixing the Intake Manifold Runner Control Stuck Open in a 2001 Ford F150?

Repair options include cleaning the intake manifold, replacing the IMRC actuator or linkage, or addressing any electrical issues causing the control to malfunction.

6. How much does it typically cost to repair the Intake Manifold Runner Control Stuck Open in a 2001 Ford F150?

Costs can vary depending on the extent of the issue and the specific repairs needed, but it can range from a few hundred to over a thousand dollars at a dealership or repair shop.

7. Can I fix the Intake Manifold Runner Control Stuck Open issue myself on a 2001 Ford F150?

If you have the necessary tools, skills, and access to replacement parts, you may be able to tackle this repair yourself. However, it's recommended to consult a professional if you're unsure.

8. Will resetting the OBDII code P1518 make the Intake Manifold Runner Control issue go away in my 2001 Ford F150?

Resetting the code may temporarily turn off the Check Engine light, but it won't fix the underlying problem causing the Intake Manifold Runner Control to be stuck open.

9. How long does it take to repair the Intake Manifold Runner Control Stuck Open issue in a 2001 Ford F150?

The repair time can vary depending on the specific problem and the expertise of the mechanic, but it typically takes a few hours to half a day to address this issue.

10. What other codes or issues may be related to the OBDII code P1518 Intake Manifold Runner Control Stuck Open in a 2001 Ford F150?

Related codes may include P2004 (Intake Manifold Runner Control Stuck Open) or P2008 (Intake Manifold Runner Control Circuit/Open Bank 1). Issues with the intake manifold or vacuum system can also be related.