AutoCodes – Ford – P1518 2000 Ford F150

P1518 2000 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 2000 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 9,751
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 03, 2020
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Code P1518 2000 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 2000 Ford F150 - Intake Manifold Runner Control Stuck Open - AutoCodes.com
P1518 2000 Ford F150 Code - Intake Manifold Runner Control Stuck Open

What are the Possible Causes of the DTC P1518 2000 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 2000 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 2000 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.

Need more information about the P1518 2000 Ford F150 code?

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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 2000 Ford F150 Code

1. What are the common symptoms of OBDII code P1518 in a 2000 Ford F150 related to the Intake Manifold Runner Control being stuck open?

The common symptoms include rough idle, decreased engine performance, and illuminated Check Engine Light.

2. What can cause the Intake Manifold Runner Control to be stuck open in a 2000 Ford F150 triggering OBDII code P1518?

The common causes include a faulty Intake Manifold Runner Control (IMRC) actuator, damaged vacuum lines, or a malfunctioning IMRC valve.

3. How can I diagnose the issue causing OBDII code P1518 in my 2000 Ford F150?

You can diagnose the problem by visually inspecting the IMRC components, checking for vacuum leaks, testing the IMRC actuator operation, and using a scan tool to monitor IMRC data.

4. Can driving with OBDII code P1518 in a 2000 Ford F150 cause further damage?

Continuing to drive with the Intake Manifold Runner Control stuck open can lead to reduced fuel efficiency, engine misfires, and potential damage to other engine components over time.

5. Is it safe to continue driving my 2000 Ford F150 with the Intake Manifold Runner Control stuck open?

It is not recommended to drive the vehicle with OBDII code P1518 present, as it can affect engine performance and potentially lead to more serious issues if left unresolved.

6. How can I repair OBDII code P1518 related to the Intake Manifold Runner Control issue in my 2000 Ford F150?

The repair typically involves replacing the faulty IMRC actuator, repairing or replacing damaged vacuum lines, or cleaning/replacing the IMRC valve as needed.

7. Are there any DIY tips for fixing OBDII code P1518 in a 2000 Ford F150 at home?

While some may attempt to clean the IMRC components or inspect vacuum lines themselves, it is recommended to have a professional mechanic diagnose and repair the issue to ensure proper and lasting resolution.

8. How much does it cost to fix OBDII code P1518 caused by a stuck open Intake Manifold Runner Control in a 2000 Ford F150?

The repair costs can vary depending on the exact cause of the issue, but typically range from $200 to $600 including parts and labor.

9. Can resetting the OBDII code P1518 in a 2000 Ford F150 temporarily resolve the issue?

Resetting the code may temporarily turn off the Check Engine Light, but if the underlying problem with the Intake Manifold Runner Control is not addressed, the code is likely to reappear.

10. Will fixing OBDII code P1518 improve the overall performance and fuel efficiency of my 2000 Ford F150?

Yes, resolving the Intake Manifold Runner Control issue causing code P1518 should lead to improved engine performance and fuel efficiency once the system is functioning properly.

Discuss the causes and fixes for P1518 2000 Ford F150 OBDII Code

  • Changed the altinator on my 2000 ford f150 and now it doesn't want to go in gear. It starts ang everything but just doesn't want to go in gear

  • Is the P1518 code the only code you have? what is the engine size of your F150?

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