Standard Ignition AC412 Idle Air Control Valve

Idle Air Control Valve for Ford and Mercury

Standard Ignition AC412 is an idle air control valve for select Ford, Lincoln, and Mercury vehicles. It regulates bypass airflow at idle to help maintain stable engine speed during cold starts, stop-and-go driving, and accessory load changes.

Key Features

• Polymer-blended, isotropic neodymium/iron/boron magnet for accurate pintle and airflow control
• High-strength stepping motor for strong output torque
• Shielded ball bearing helps resist environmental contaminants
• Load-tested actuator for force output above actual load requirements
• Built with high-grade materials for extended service life

Detailed Description

Standard Ignition AC412 is an OE-style idle air control valve for 2003-2006 Mercury Grand Marquis, 2003-2005 Ford Crown Victoria, and 2003-2005 Lincoln Town Car applications. It helps the engine control module manage idle airflow so the engine can return to a steady idle after throttle release. This part cross-references Hitachi Automotive ABV0011 for the same application.

Common Issues It May Address

• Rough or unstable idle
• Stalling when coming to a stop
• High or low idle speed
• Idle fluctuation during cold starts
• Idle quality changes when electrical loads are turned on

Installation Notes and Tips

Verify the connector style and mounting location before installation. Clean the throttle body and related air passages during service, and confirm there are no vacuum leaks or intake restrictions that could affect idle control. For best results, clear diagnostic trouble codes and perform any required idle relearn procedure after replacement.

Quality Assurance

Standard Ignition manufactures this idle air control valve with load testing and durable internal components to support consistent operation and extended service life.