HomeAir and Fuel Delivery > Fuel Injection System and Related ComponentsStandard Ignition AC56 Idle Air Control Valve
Part #: AC56

Standard Ignition AC56 Idle Air Control Valve

⚙️ 51 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, Lincoln, and Mercury, Explorer, F-100 Ranger, Cougar, Crown Victoria, Grand Marquis, Thunderbird, and Town Car
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Overview of Standard Ignition AC56 Idle Air Control Valve

The Standard Ignition AC56 Idle Air Control Valve is designed to regulate the engine's idle speed by controlling airflow. This component is compatible with select Ford, Lincoln, and Mercury vehicles, including models like the Ford Explorer, Crown Victoria, and Mercury Cougar.

  • Connector Shape: Square for secure electrical connection
  • Includes Gaskets for proper sealing
  • Single Port design for precise airflow control
  • Two Terminal connections for reliable electrical performance
  • Hardware not included

Detailed Product Description

The AC56 Idle Air Control Valve from Standard Ignition features a square-shaped connector that ensures a stable and accurate electrical connection, essential for maintaining consistent idle speed. This valve includes gaskets to prevent air leaks and maintain engine efficiency. With one port and two terminals, it provides precise control over the air entering the engine at idle, which is critical for smooth engine operation. This part is engineered to meet the specifications required by Ford, Lincoln, and Mercury vehicles such as the F-100 Ranger, Grand Marquis, and Town Car.

Compatible Vehicles and Applications

This idle air control valve is compatible with a range of Ford, Lincoln, and Mercury models, including:

  • Ford Explorer
  • Ford F-100 Ranger
  • Lincoln Town Car
  • Mercury Cougar
  • Mercury Grand Marquis
  • Ford Crown Victoria
  • Mercury Thunderbird

Common Issues Addressed by the AC56 Idle Air Control Valve

  • Irregular or fluctuating engine idle speed
  • Engine stalling at idle
  • Difficulty starting the engine
  • Check engine light related to idle control
  • Rough or unstable idle performance

Installation Notes and Tips

  • Ensure the engine is cool before installation to avoid injury
  • Use the included gaskets to prevent air leaks and ensure proper sealing
  • Verify the square connector aligns correctly with the vehicle’s wiring harness
  • Check for any vacuum leaks after installation
  • Hardware is not included; retain original mounting hardware or source separately if needed

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications. The AC56 Idle Air Control Valve undergoes rigorous quality control to ensure reliable performance. This part includes a limited warranty against defects in materials and workmanship, providing confidence in its durability and function.

BrandStandard Ignition
Part NumberAC56
Connector ShapeSquare
Gaskets IncludedYes
Hardware IncludedNo

This part fits 51 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1997FordExplorer5.0LV8N/Aw/ Mexico Emissions; Primary
1997FordF-100 RangerN/APrimary; Right
1997FordF-100 Ranger2.3LL4N/ACompatible with various car models.
1996FordF-100 RangerN/APrimary; Right
1996FordF-100 Ranger2.3LL4N/ACompatible with various car models.
1995FordCougar4.6LV8N/ACompatible with various car models.
1995FordCrown Victoria4.6LV8N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1995FordCrown Victoria4.6LV8N/ACompatible with various car models.
1995FordGrand MarquisN/APrimary application for specific vehicle models ~ Idle Air Control Valve
1995FordGrand Marquis4.6LV8N/ACompatible with various car models.
1995FordThunderbird4.6LV8N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1995FordThunderbird4.6LV8N/ACompatible with various car models.
1995LincolnTown Car4.6LV8N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1995LincolnTown Car4.6LV8N/ACompatible with various car models.
1995MercuryCougar4.6LV8N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1995MercuryCougar4.6LV8N/ACompatible with various car models.
1995MercuryGrand Marquis4.6LV8N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1995MercuryGrand Marquis4.6LV8N/ACompatible with various car models.
1994FordCougarN/APrimary application for specific vehicle models ~ Idle Air Control Valve
1994FordCrown Victoria4.6LV8N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1994FordCrown Victoria4.6LV8N/ACompatible with various car models.
1994FordGrand Marquis4.6LV8N/ACompatible with various car models.
1994FordGrand Marquis4.6LV8N/AControl Valve; Primary
1994FordThunderbird4.6LV8N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1994FordThunderbird4.6LV8N/ACompatible with various car models.
1994LincolnTown CarN/APrimary application for specific vehicle models ~ Idle Air Control Valve
1994LincolnTown Car4.6LV8N/ACompatible with various car models.
1994MercuryCougar4.6LV8N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1994MercuryCougar4.6LV8N/ACompatible with various car models.
1994MercuryGrand Marquis4.6LV8N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1994MercuryGrand Marquis4.6LV8N/ACompatible with various car models.
1993FordCrown Victoria4.6LV8N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1993FordCrown Victoria4.6LV8N/ACompatible with various car models.
1993FordGrand Marquis4.6LV8N/ACompatible with various car models.
1993FordGrand Marquis4.6LV8N/AControl Valve; Primary
1993LincolnTown CarN/APrimary application for specific vehicle models ~ Idle Air Control Valve
1993LincolnTown Car4.6LV8N/ACompatible with various car models.
1993MercuryGrand Marquis4.6LV8N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1993MercuryGrand Marquis4.6LV8N/ACompatible with various car models.
1992FordCrown Victoria4.6LV8N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1992FordCrown Victoria4.6LV8N/ACompatible with various car models.
1992FordGrand Marquis4.6LV8N/ACompatible with various car models.
1992FordGrand Marquis4.6LV8N/AControl Valve; Primary
1992LincolnTown CarN/APrimary application for specific vehicle models ~ Idle Air Control Valve
1992LincolnTown Car4.6LV8N/ACompatible with various car models.
1992MercuryGrand Marquis4.6LV8N/APrimary application for specific vehicle models ~ Idle Air Control Valve
1992MercuryGrand Marquis4.6LV8N/ACompatible with various car models.
1991LincolnTown CarN/APrimary application for specific vehicle models ~ Idle Air Control Valve
1991LincolnTown Car4.6LV8N/ACompatible with various car models.
1988FordCougar3.8LV6N/ACompatible with various car models.
1988FordCougar3.8LV6N/AControl Valve; Primary

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

150-2252-20243215-2015217-1467289453-202434J101073-485574638496ABV0062AC56TACVB10041CV10120CX1660F1AE9F715BCF5PZ9F715AAIAC26

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.