Fuel Injection Idle Air Control Valve

Description

Walker Products Fuel Injection Idle Air Control (IAC) Valves are OE Replacement components that regulate the amount of air bypassing the throttle plate to maintain stable engine idle under varying conditions. Controlled by the engine control unit (ECU), the IAC valve adjusts airflow during engine warm-up, load changes (like A/C or power steering use), and deceleration to ensure consistent idle speed and prevent stalling. Each Walker IAC Valve is engineered to match OE specifications for pintle shape, stepper motor response, voltage range, and airflow control curves. Constructed with high-temperature-resistant materials and sealed against fuel vapors and moisture, these valves are built to withstand the harsh environment of the engine bay. Designed for an exact OE fit, they install directly into the original throttle body or intake housing and connect seamlessly with the factory wiring harness. Symptoms of a failing IAC valve may include erratic idle speed, stalling, hard starting, or illuminated check engine lights. Whether addressing drivability issues or performing a routine fuel injection system service, Walker IAC Valves provide precise idle control, improved cold-start performance, and restored engine stability across a wide range of domestic and import applications.

Fitment

This part fits the following vehicles.

• 1995-1996 AM General Hummer
• 1985-1988 Buick Century
• 1991 Buick Commercial Chassis
• 1986-1987 Buick Electra
• 1986-1988 Buick LeSabre
• 1986-1987 Buick Regal
• 1986-1987 Buick Riviera
• 1991-1993 Buick Roadmaster
• 1982-1987 Buick Skyhawk
• 1985-1988 Buick Skylark
• 1986-1987 Buick Somerset
• 1985 Buick Somerset Regal
• 1990-1992 Cadillac Brougham
• 1985-1986 Cadillac Cimarron
• 1992-1993 Cadillac Commercial Chassis
• 1993 Cadillac Fleetwood
• 1985-1994 Chevrolet Astro
• 1987-1993 Chevrolet Blazer
• 1988-1995 Chevrolet C1500
• 1992-1995 Chevrolet C1500 Suburban
• 1988-1995 Chevrolet C2500
• 1992-1995 Chevrolet C2500 Suburban
• 1988-1991, 1995 Chevrolet C3500
• 1985-1992 Chevrolet Camaro
• 1985-1993 Chevrolet Caprice
• 1983-1986 Chevrolet Cavalier
• 1982-1986 Chevrolet Celebrity
• 1985 Chevrolet Citation II
• 1991-1992 Chevrolet Commercial Chassis
• 1985-1989 Chevrolet Corvette
• 1985-1987 Chevrolet El Camino
• 1987-1995 Chevrolet G10
• 1987-1995 Chevrolet G20
• 1987-1996 Chevrolet G30
• 1985 Chevrolet Impala
• 1988-1995 Chevrolet K1500
• 1992-1995 Chevrolet K1500 Suburban
• 1988-1995 Chevrolet K2500
• 1992-1995 Chevrolet K2500 Suburban
• 1988-1995 Chevrolet K3500
• 1990-1995 Chevrolet Lumina APV
• 1985-1988 Chevrolet Monte Carlo
• 1987-1989 Chevrolet P20
• 1987-1996 Chevrolet P30
• 1987 Chevrolet R10
• 1987-1988 Chevrolet R10 Suburban
• 1989-1991 Chevrolet R1500 Suburban
• 1987-1988 Chevrolet R20
• 1987-1988 Chevrolet R20 Suburban
• 1989 Chevrolet R2500
• 1989-1991 Chevrolet R2500 Suburban
• 1987-1988 Chevrolet R30
• 1989-1991 Chevrolet R3500
• 1985-1995 Chevrolet S10
• 1985-1994 Chevrolet S10 Blazer
• 1995 Chevrolet Silverado
• 2000-2002 Chevrolet Sonora
• 1995 Chevrolet Suburban 1500
• 1995 Chevrolet Tahoe
• 1987 Chevrolet V10
• 1987-1988 Chevrolet V10 Suburban
• 1989-1991 Chevrolet V1500 Suburban
• 1987 Chevrolet V20
• 1987-1988 Chevrolet V20 Suburban
• 1989-1991 Chevrolet V2500 Suburban
• 1987-1988 Chevrolet V30
• 1989-1991 Chevrolet V3500
• 1988-1995 GMC C1500
• 1992-1995 GMC C1500 Suburban
• 1988-1995 GMC C2500
• 1992-1995 GMC C2500 Suburban
• 1988-1995 GMC C3500
• 1985-1987 GMC Caballero
• 1987-1995 GMC G1500
• 1987-1995 GMC G2500
• 1987-1996 GMC G3500
• 1987-1994 GMC Jimmy
• 1988-1995 GMC K1500
• 1992-1995 GMC K1500 Suburban
• 1988-1995 GMC K2500
• 1992-1995 GMC K2500 Suburban
• 1988-1995 GMC K3500
• 1988-1989 GMC P2500
• 1987-1996 GMC P3500
• 1987 GMC R1500
• 1987-1991 GMC R1500 Suburban
• 1987-1989 GMC R2500
• 1987-1991 GMC R2500 Suburban
• 1987-1991 GMC R3500
• 1985-1990 GMC S15
• 1985-1991 GMC S15 Jimmy
• 1985-1994 GMC Safari
• 1991-1995 GMC Sonoma
• 1987 GMC V1500
• 1987-1991 GMC V1500 Suburban
• 1987 GMC V2500
• 1987-1991 GMC V2500 Suburban
• 1987-1991 GMC V3500
• 1992-1995 GMC Yukon
• 1991-1994 Isuzu Pickup

Showing 100 of 129 vehicles. Use the fit check above to see whether this part fits yours.

Features & benefits

• Built for Long-Term Reliability: Designed with precision components and sealed housings to withstand heat, vibration, and fuel vapor exposure.
• Restores Idle Stability: Eliminates rough idle, stalling, and hard starting caused by faulty or sticking IAC valves.
• Exact OE Fit: Installs directly into the throttle body using factory connectors and mounting points—no wiring or modifications required.
• OE Replacement Calibration: Matches factory specifications for pintle movement, voltage response, and idle airflow control logic.
• Controls Idle Airflow: Regulates bypass air around the throttle plate for stable idle and smooth engine operation during warm-up and load changes.

Specifications

Warranty

1 Year

Magnuson-Moss Warranty Act

Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).