Idle Air Control (IAC) Valves

The idle air control (IAC) valve is located on the throttle body of fuel-injected engines. This valve works with the vehicle’s ECU to electrically regulate airflow to the engine to ensure smooth idling.

NAPA® Echlin® manufactures Idle Air Control Valves at our ISO 9001 and IATF 16949-certified facilities in Greenville, SC, and Reynosa, Mexico, respectively. A key aspect of the manufacturing process is load testing, which makes sure each actuator delivers a greater force than the actual load.


  • Tested at greater than normal force to extend longevity
  • Anodized aluminum housing resists wear and tear from corrosion
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    Precision-machined housing ensures proper air flow to engine as required by ECU during changing load requirements 

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    Anodized aluminum housing resists corrosion better than regular passivation treatment 

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    Precision-machined solenoid components generate magnetic force to actuate plunger 

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    High-temp polyester coating on solenoid coil wire ensures proper function during cyclic exposure to elevated temperatures 

A Sweet-Spot Category

More than 70 million vehicles (model years 1995 through 2005) on the road today have entered “sweet spot” years for IAC repairs, according to our research. This means they have an IAC that will need to be replaced soon.

Choose high-quality NAPA® Echlin® Idle Air Control (IAC) Valves to take advantage of this growing repair opportunity.

A Sweet-Spot Category

Designed and Tested to Prevent Corrosion

Designed and Tested to Prevent Corrosion

Idle Air Control (IAC) Valve Replacement - Ford 4.6L

This video goes over the procedure on replacing the Idle Air Control (IAC) Valve on a 4.6L Ford vehicle.

Level of difficulty: INTERMEDIATE
Approximate Time: 1 Hour
Tools needed: 8mm swivel socket, 1/4 ratchet, extension, 90° pick