Standard Ignition AC505 Idle Air Control Valve

Idle Air Control Valve for Ford Applications

Standard Ignition AC505 is an idle air control valve built for Ford fuel injection systems that need stable idle airflow management. It is a direct-fit service part for select 2002-2004 Ford E-Series vans, Expedition, and F-150 applications, including the 2004 Ford F-150 Heritage.

With a 2-terminal design and internal stepping-motor control, this AC505 idle air control valve helps regulate pintle movement and airflow for consistent idle operation. It is a practical replacement choice for drivers addressing idle quality concerns on Ford E-150, E-250, Expedition, and F-150 models.

• 2-terminal idle air control valve design
• Uses a polymer-blended neodymium/iron/boron magnet for accurate pintle control
• High-strength stepping motor for controlled airflow response
• Shielded ball bearing helps resist environmental contamination
• Load-tested for actuator force and durability
• Manufactured with high-grade materials for extended service life

Detailed Product Overview

Standard Ignition AC505 is engineered to manage bypass air at idle so the engine can maintain a steadier idle speed under changing load conditions. For Ford E-150 and E-250 vans, Expedition SUVs, and F-150 trucks, this idle air control valve supports the airflow control needed by the engine management system. The AC505 part number is also useful when cross-referencing service replacements for the same application.

This part cross-references Delphi CV10105 for the same application.

What This Part Helps Address

• Rough or unstable idle
• Idle speed that drops too low or stalls
• Idle flare or inconsistent engine speed
• Airflow control issues at closed throttle
• Driveability complaints related to idle control on Ford fuel-injected engines

Installation Notes and Tips

Verify the 2-terminal connector style and match the vehicle application before installation. Clean the throttle body and surrounding air passages during service so the new AC505 idle air control valve can operate against a clean airflow path. After installation, clear any stored idle-related fault codes and allow the engine control system to relearn idle strategy if required by the vehicle.

Quality Assurance

Standard Ignition manufactures this idle air control valve with load testing, contamination-resistant bearing support, and durable internal components to support long service life. The AC505 is built for consistent operation in the listed Ford applications.

• Fits 2003-2004 Ford E-150, N/A
• Fits 2003-2004 Ford E-250, N/A
• Fits 2002-2004 Ford Expedition, N/A
• Fits 2004 Ford F-150 Heritage, N/A
• Fits 2003 Ford E-150, N/A
• Fits 2003 Ford E-150 Club Wagon, N/A
• Fits 2003 Ford E-250, N/A
• Fits 2002-2003 Ford Expedition, N/A
• Fits 2002-2003 Ford F-150, N/A
• Fits 2002 Ford E-150 Econoline, N/A
• Fits 2002 Ford E-150 Econoline Club Wagon, N/A
• Fits 2002 Ford F-150, N/A