Standard Ignition AC423 Idle Air Control Valve

Idle Air Control Valve for Ford Windstar and Lincoln LS

Standard Ignition AC423 is an idle air control valve built for precise airflow management at the throttle body. It uses a polymer-blended, isotropic neodymium/iron/boron magnet and a high-strength stepping motor to help maintain accurate pintle movement and stable idle control.

Fits 2001-2003 Ford Windstar, N/A. Fits 2002-2003 Lincoln LS, N/A. This part cross-references Delphi (e.g., CV10103) for the same application.

Key Features

• 2-terminal design with blade terminals
• Controls idle airflow through accurate pintle positioning
• High-strength stepping motor for consistent output torque
• Shielded ball bearing helps resist environmental contaminants
• Load-tested actuator for added durability and performance consistency
• Manufactured with high-grade materials for extended service life

Detailed Description

Standard Ignition AC423 is an idle air control valve for select Ford Windstar and Lincoln LS applications. It is engineered to regulate bypass air at idle so the engine can maintain a steady idle speed under changing load conditions. The motor, magnet, and bearing design work together to support accurate response and long-term operation in the fuel injection system.

For drivers searching for a Ford Windstar idle air control valve or a Lincoln LS idle air control valve, AC423 provides a direct-fit service part for the listed model years. The part number AC423 is also a useful reference when comparing OE-style replacements and interchange listings.

Common Issues This Part May Address

• Rough or unstable idle
• Idle speed that drops too low or stalls
• Idle speed that hangs high after throttle release
• Airflow control problems at closed throttle
• Driveability concerns related to idle regulation

Installation Notes and Tips

Verify the connector style before installation; this valve uses 2 blade terminals. Inspect the throttle body and adjacent air passages for carbon buildup, and clean related surfaces before installing the new valve. Confirm the vehicle application by year, make, and model before ordering AC423.

Quality Assurance

Standard Ignition manufactures this idle air control valve with load testing and durable internal components to support consistent operation and service life. The design focuses on accurate pintle control, contaminant resistance, and dependable performance in everyday driving conditions.