Engine-CodesMercury – P1519 Mercury

P1519 Mercury Code - Intake Manifold Runner Control Stuck Closed

Quick Answer

The P1519 diagnostic trouble code for Mercury vehicles indicates that the Intake Manifold Runner Control (IMRC) is stuck closed. Common causes include Faulty IMRC actuator, Broken linkage, Carbon buildup in the intake manifold runners. 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
P1519 Mercury indicates Intake Manifold Runner Control Stuck Closed.
Common causes
Common causes include Faulty IMRC actuator, Broken linkage, Carbon buildup in the intake manifold runners.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1519 Mercury Description

The P1519 diagnostic trouble code for Mercury vehicles indicates that the Intake Manifold Runner Control (IMRC) is stuck closed. The IMRC system is responsible for adjusting the length of the intake manifold runners to optimize airflow into the engine for improved performance and fuel efficiency. When the IMRC is stuck closed, it can restrict airflow and hinder the engine's ability to operate at peak efficiency.

OBDII Code P1519 Mercury - Intake Manifold Runner Control Stuck Closed
P1519 Mercury Code - Intake Manifold Runner Control Stuck Closed

Common Causes of P1519 Mercury

  1. Faulty IMRC actuator
  2. Broken linkage
  3. Carbon buildup in the intake manifold runners
  4. Faulty IMRC solenoid
  5. Wiring or electrical issues

Symptoms of P1519 Mercury

  1. Reduced engine power
  2. Decreased fuel efficiency
  3. Rough idle or stalling
  4. Check Engine Light illuminated
  5. Engine hesitation or surging

How to Fix P1519 Mercury

  1. Diagnose the issue using a scan tool to confirm the P1519 code and pinpoint the exact cause of the problem.
  2. Inspect the IMRC actuator, linkage, and solenoid for any signs of damage or malfunction.
  3. Clean the intake manifold runners to remove any carbon buildup that may be causing the IMRC to stick closed.
  4. Replace the faulty IMRC actuator, linkage, or solenoid if necessary.
  5. Clear the trouble code from the vehicle's computer and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1519 Mercury

The cost of repairing a stuck closed IMRC can vary depending on the extent of the issue and the specific components that need to be replaced. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. However, it is essential to note that the actual cost may differ based on the location, vehicle make and model, and the mechanic's labor rates. It's recommended to obtain a detailed estimate from a reputable auto repair shop before proceeding with the repair.

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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.

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