Secondary Air Injection Check Valve

StandardPart # AV23

Standard AV23 Secondary Air Injection Pump Check Valve

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$42.99

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3-year warranty

90 days free return

Fits 1979-1979 Ford Mustang, 1980-1980 Ford F-350, 1980-1980 Ford Granada, 1980-1980 Ford Thunderbird, 1980-1981 Ford E-350 Econoline, 1980-1981 Ford F-100, 1980-1981 Ford F-150, 1980-1981 Ford F-250, 1980-1982 Ford LTD, 1981-1982 Ford E-150 Econoline Club Wagon, 1982-1982 Ford E-100 Econoline, 1982-1982 Ford E-100 Econoline Club Wagon, 1982-1982 Ford E-350 Econoline, 1982-1982 Ford Mustang, 1983-1983 Ford E-150 Econoline Club Wagon, 1983-1983 Ford E-150 Econoline Club Wagon, 1983-1983 Ford F-100, 1983-1983 Ford F-150, 1983-1983 Ford Fairmont, 1983-1983 Ford LTD, 1983-1983 Ford Mustang, 1983-1983 Ford Mustang, 1983-1983 Ford Thunderbird, 1983-1984 Ford E-150 Econoline, 1983-1984 Ford E-150 Econoline Club Wagon, 1983-1984 Ford Ranger, 1983-1984 Ford Ranger, 1983-1984 Ford Ranger, 1983-1984 Ford Thunderbird, 1984-1984 Ford E-150 Econoline Club Wagon, 1984-1984 Ford E-350 Econoline, 1984-1984 Ford E-350 Econoline Club Wagon, 1984-1984 Ford LTD, 1984-1984 Ford LTD, 1984-1984 Ford Mustang, 1984-1984 Ford Tempo, 1984-1984 Ford Thunderbird, 1984-1984 Ford Thunderbird, 1984-1985 Ford LTD, 1984-1986 Ford F-150, 1984-1986 Ford F-250, 1984-1986 Ford F-350, 1984-1986 Ford Mustang, 1984-1987 Ford E-150 Econoline Club Wagon, 1984-1987 Ford E-250 Econoline, 1984-1987 Ford E-250 Econoline Club Wagon, 1984-1987 Ford Thunderbird, 1985-1985 Ford Escort, 1985-1986 Ford E-150 Econoline, 1985-1986 Ford E-150 Econoline Club Wagon, 1985-1986 Ford LTD, 1985-1986 Ford Thunderbird, 1985-1987 Ford E-150 Econoline, 1986-1986 Ford Aerostar, 1986-1986 Ford Aerostar, 1986-1986 Ford EXP, 1986-1986 Ford LTD, 1986-1986 Ford Mustang, 1986-1987 Ford Bronco, 1987-1987 Ford E-350 Econoline, 1987-1987 Ford E-350 Econoline, 1987-1987 Ford E-350 Econoline Club Wagon, 1987-1987 Ford F-350, 1987-1987 Ford Ranger, 1987-1988 Ford F-150, 1987-1988 Ford F-250, 1987-1988 Ford F-350, 1987-1989 Ford Country Squire, 1987-1989 Ford Mustang, 1987-1991 Ford LTD Crown Victoria, 1988-1988 Ford E-350 Econoline, 1988-1988 Ford E-350 Econoline Club Wagon, 1988-1988 Ford Ranger, 1988-1988 Ford Ranger, 1988-1988 Ford Ranger, 1988-1988 Ford Taurus, 1988-1988 Ford Thunderbird, 1988-1990 Ford E-150 Econoline, 1988-1990 Ford E-150 Econoline Club Wagon, 1988-1990 Ford E-250 Econoline, 1988-1990 Ford E-250 Econoline Club Wagon, 1990-1990 Ford E-150 Econoline, 1990-1990 Ford E-250 Econoline, 1990-1990 Ford E-250 Econoline Club Wagon, 1990-1990 Ford E-350 Econoline, 1990-1990 Ford E-350 Econoline Club Wagon, 1990-1990 Ford F-150, 1990-1991 Ford Country Squire, 1990-1992 Ford Bronco, 1990-1992 Ford F-250, 1990-1992 Ford Mustang, 1990-1994 Ford E-150 Econoline Club Wagon, 1991-1991 Ford E-250 Econoline Club Wagon, 1991-1991 Ford E-250 Econoline Club Wagon, 1991-1991 Ford Thunderbird, 1991-1992 Ford E-350 Econoline, 1991-1992 Ford E-350 Econoline Club Wagon, 1991-1992 Ford F-150, 1991-1994 Ford E-150 Econoline, 1991-1994 Ford E-250 Econoline, 1991-1996 Ford E-150 Econoline, 1991-1996 Ford E-150 Econoline Club Wagon, 1991-1996 Ford E-250 Econoline, 1993-1993 Ford Aerostar, 1993-1993 Ford E-350 Econoline, 1993-1993 Ford E-350 Econoline Club Wagon, 1993-1993 Ford F-250, 1993-1993 Ford F-350, 1993-1993 Ford F-Super Duty, 1993-1994 Ford F-150, 1993-1994 Ford F-150, 1993-1994 Ford F-150, 1993-1994 Ford F-250, 1993-1994 Ford F-250, 1993-1994 Ford F-250, 1993-1994 Ford F-350, 1993-1994 Ford F-350, 1993-1995 Ford Mustang, 1993-1996 Ford E-350 Econoline, 1993-1996 Ford E-350 Econoline Club Wagon, 1994-1994 Ford E-350 Econoline, 1994-1994 Ford E-350 Econoline Club Wagon, 1994-1994 Ford F-250, 1994-1994 Ford F-350, 1994-1994 Ford F-Super Duty, 1994-1996 Ford E-350 Econoline, 1994-1996 Ford E-350 Econoline Club Wagon, 1995-1995 Ford F-250, 1995-1995 Ford F-350, 1995-1995 Ford F-Super Duty, 1995-1996 Ford F-150, 1995-1996 Ford F-250, 1995-1996 Ford F-350, 1996-1996 Ford Econoline Super Duty, 1996-1996 Ford Econoline Super Duty, 1996-1996 Ford F-150, 1996-1996 Ford F-250, 1996-1996 Ford F-350, 1980-1980 Lincoln 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Marquis, 1988-1988 Mercury Sable, 1990-1991 Mercury Colony Park, 1991-1991 Mercury Cougar

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Item LocatedUnited States

Quantity1

Part interchange

AV23, 2-979, CX1462, CX1475, CX760A, 174-248, 214-1111, 89052766,

item #10016VUQ

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What is a secondary air injection check valve?

The role of a secondary air injection check valve is to prevent the reverse flow of exhaust gases into the Secondary Air Injection (SAI) system, particularly during specific engine conditions like cold starts.

When a vehicle's engine is cold, the secondary air injection check valve produces higher emissions. The SAI system is designed to reduce these emissions by introducing fresh air into the exhaust system during cold starts. The Secondary Air Injection Check Valve is like a one-way door in this system. It ensures that only fresh air, provided by the SAI pump, is allowed into the exhaust manifold. This fresh air helps burn any unburned hydrocarbons in the exhaust, lowering emissions. The check valve's critical job is to prevent exhaust gases from flowing backward into the SAI system. This would disrupt the emission-reducing process and potentially lead to higher pollution levels.

How do I know if my secondary air injection check valve is bad?

Some common signs that can indicate a bad SAI check valve:

Check engine light: Illumination of the check engine light on the dashboard, often accompanied by specific error codes related to the SAI system.

Increased emissions: Higher emissions levels, potentially leading to failed emissions tests.

Poor cold start performance: Rough or problematic cold starts, including rough idling and hesitation.

Reduced fuel efficiency: Decreased gas mileage, resulting in fewer miles per gallon.

Unusual engine noises: Odd sounds like hissing or rattling may emanate from the SAI system.

The smell of unburned fuel: The presence of the smell of unburned fuel in the exhaust, is noticeable from the tailpipe.

Loss of engine power: Possible reduction in engine power, especially during acceleration.

Secondary Air Injection Check Valve

What is a secondary air injection check valve?

How do I know if my secondary air injection check valve is bad?

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