/live/media/SI/SI_AC422_Fro.jpg)
Standard Ignition AC422 Idle Air Control Valve
| Brand | Standard Ignition AC422 |
|---|---|
| Gaskets Included | Yes |
| Hardware Included | No |
| Fits | Mercury and Ford · 32 vehicles |
Precision-ground valve components. Ensure accurate flow for consistent idle control.
High-grade materials. Built for prolonged life and dependable performance.
Idle air control valve. Regulates airflow to help maintain smooth idle operation.
Cross-references Walker Exhaust 50557, Walker Products 215-2068 and 1L2Z9F715AA for the same application. See all 11.
Idle Air Control Valve for Ford and Mercury Applications
Standard Ignition AC422 is an idle air control valve built for precise airflow management at the throttle body. It uses precision-ground valve components and high-grade materials to support accurate idle control and long service life in Ford Freestar, Ford Explorer, and Mercury Mountaineer applications.
Key Features
- Precision-ground valve components for accurate airflow control
- Gaskets included for a proper seal at installation
- 1-port, 2-terminal design
- Built with high-grade materials for durability and consistent operation
- Standard Ignition AC422 for fuel injection system idle control service
Detailed Description
This idle air control valve helps regulate bypass air around the throttle plate so the engine can maintain a stable idle under changing load conditions. Standard Ignition AC422 is engineered for direct service in 2002-2003 Ford Explorer, 2004-2007 Ford Freestar, and 2002-2010 Mercury Mountaineer applications. It is a practical replacement when the original idle air control valve is worn, sticking, or no longer responding correctly. This part cross-references Walker Products 215-2068 for the same application.
What It Helps Fix
- Unstable or fluctuating idle speed
- Stalling when coming to a stop
- Idle speed that is too high or too low
- Rough idle after startup or during accessory load changes
- Idle control issues caused by a sticking valve
Installation Notes and Tips
Verify the connector style, port count, and terminal count before installation. Clean the throttle body and mating surfaces, and replace the gasket supplied with the valve to help prevent air leaks. After installation, clear any stored fault codes and confirm idle quality at warm operating temperature.
Quality Assurance
Standard Ignition has supplied automotive aftermarket electrical and emissions-related components since 1919. AC422 is manufactured with controlled processes and durable materials to support consistent idle air control performance.
| Year | Make | Model | # Doors | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2010 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2009 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2008 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2008 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Compatible with various car models. |
| 2007 | Ford | Freestar | — | — | — | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2007 | Ford | Freestar | — | 3.9L | V6 | N/A | Compatible with various car models. |
| 2007 | Ford | Freestar | — | 4.2L | V6 | N/A | Compatible with various car models. |
| 2007 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2007 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Compatible with various car models. |
| 2006 | Ford | Freestar | — | — | — | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2006 | Ford | Freestar | — | 3.9L | V6 | N/A | Compatible with various car models. |
| 2006 | Ford | Freestar | — | 4.2L | V6 | N/A | Compatible with various car models. |
| 2006 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2006 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Compatible with various car models. |
| 2005 | Ford | Freestar | — | — | — | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2005 | Ford | Freestar | — | 3.9L | V6 | N/A | Compatible with various car models. |
| 2005 | Ford | Freestar | — | 4.2L | V6 | N/A | Compatible with various car models. |
| 2005 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2005 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Compatible with various car models. |
| 2004 | Ford | Freestar | — | — | — | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2004 | Ford | Freestar | — | 3.9L | V6 | N/A | Compatible with various car models. |
| 2004 | Ford | Freestar | — | 4.2L | V6 | N/A | Compatible with various car models. |
| 2004 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2004 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Compatible with various car models. |
| 2003 | Ford | Explorer | 4 Door | 4.0L | V6 | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2003 | Ford | Explorer | 4 Door | 4.0L | V6 | N/A | Compatible with various car models. |
| 2003 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2003 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Compatible with various car models. |
| 2002 | Ford | Explorer | 4 Door | 4.0L | V6 | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2002 | Ford | Explorer | 4 Door | 4.0L | V6 | N/A | Compatible with various car models. |
| 2002 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 2002 | Mercury | Mountaineer | — | 4.0L | V6 | N/A | Compatible with various car models. |
| No rows match your filter. | |||||||