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<h2><span style="font-size: 16px;">What does an idle air control valve do?</span></h2>
<p><span style="font-size: 14px;">The idle air control (IAC) valve is vital for managing the engine's idle speed by accurately controlling airflow around the <a href="https://a-premium.com/throttle-body">throttle body</a>. This function helps the IAC valve maintain the target idle speed for smooth, stable operation. It also aids cold starts by increasing airflow to enrich the mixture and compensates for extra loads by opening more to sustain the desired idle speed. Additionally, the IAC valve's airflow regulation optimizes the air-fuel ratio to reduce emissions. Problems with the valve can cause drivability issues and increased emissions.</span></p>
<h2><span style="font-size: 18px;">How to replace the IAC valve?</span></h2>
<p><span style="font-size: 14px;">To replace an IAC (Idle Air Control) valve, first disconnect the negative battery cable. Locate the valve, typically positioned near the throttle body or intake. Unplug the electrical connector and remove the mounting hardware to take out the old valve, making sure the new part fits properly. Apply dielectric grease to the electrical connector, then install the new IAC valve in the same orientation and secure it. Reconnect the battery, start the engine, and use a scanner to clear any related diagnostic trouble codes. Test drive the vehicle to verify the new IAC valve is operating correctly and maintaining a stable idle. Regularly cleaning the IAC valve helps ensure a consistent engine idle and prevents issues.&nbsp;</span></p>
<h2><span style="font-size: 18px;">Restoring engine efficiency: A guide to cleaning the idle air control valve</span></h2>
<p><span style="font-size: 14px;">To clean the idle air control (IAC) valve on a car, first locate the valve, typically near the throttle body, and disconnect the electrical connector to isolate it from the vehicle's electrical system. Then, carefully remove the IAC valve and use a throttle body/carburetor cleaner to spray the exterior and gently scrub the interior passages and openings with a soft-bristle brush or cotton swab dipped in the cleaner, avoiding submerging the entire valve. Inspect the IAC valve for any signs of wear, damage, or excessive carbon buildup, and if severely compromised, it may need replacement rather than cleaning. Carefully reinstall the IAC valve, secure it in place, and reconnect the electrical connector, then start the engine and let it idle to ensure the valve is functioning properly. Regularly cleaning the IAC valve can help improve engine idle performance, fuel efficiency, and emissions, but if the valve is still not operating correctly after cleaning, further diagnosis or replacement may be necessary.</span></p>
<h2><span style="font-size: 18px;">Steady and reliable, worry-free driving: A-Premium IAC valve</span></h2>
<p><span style="font-size: 14px;">A-Premium idle air control (IAC) valve combines advanced engineering and premium manufacturing to deliver exceptional performance and reliable operation for your vehicle. &nbsp;Precision internal architecture and rigorous quality control ensure outstanding stability and responsiveness, keeping your engine's idle smooth and your fuel economy and emissions metrics optimized. Alongside our 90-day free returns and 1-year warranty, you can count on our customer service team to be there for you 24/7. Bid farewell to worries and enjoy a reliably smooth driving experience - A-Premium IAC valve is the answer you've been seeking.</span></p>

Idle Air Control Valve

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Air Filter Box

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Mass Air Flow Sensors/Car MAF Sensors | A-Premium

Air Flow Sensor

Air Intake Duct

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Air Intake Hose

Air Intake Manifold Actuator Control Solenoid

Air Intake Manifold Flap Adjuster

Air Intake Manifold Runner Control Sensor

Electric Vacuum Pump

Engine Air Duct Assembly

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Engine Air Filter

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Intake Manifold

Intake Manifold Flap Actuator

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Intercooler

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Oxygen Sensor

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Pressure Sensor

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Throttle Body

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Throttle Position Sensor

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Turbocharger

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Turbocharger Oil Line

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Vacuum Pump

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Air Filters & Intake Systems

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Camshaft Adjuster

Camshaft Adjuster Cover

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Camshaft Timing Gear

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Camshafts

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Engine Valve Cover

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Harmonic Balancer

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Timing Belt Kit

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Timing Chain Kit

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Timing Cover

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Timing-Control Valve Solenoid

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Valve Lifters Tappet

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Cams, Timing & Valvetrain

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Belt Tensioner

Coolant Level Sensor

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Crankcase Breather Hose

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Crankcase Breather Valve

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Crankshaft Position Sensor

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Engine Oil Dipstick Tube

Engine Oil Filter

Engine Oil Pan Gasket

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Flywheel

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Oil Cooler

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Oil Cooler Line

Oil Filler Cap

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Oil Filter

Oil Filter Base

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Oil Filter Housing

Oil Filter Housing Cover

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Oil Level Sensor

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Oil Pan

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Oil Pump

Oil Pump Drive Gear Shaft

Oil Pump Pickup Tube

Cranks, Pistons, Oil & Components

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Camshaft Position Sensor

Camshaft Position Sensor & Magnet Kit

Connector Plug

Distributor Cap

Engine Valve Covers & Ignition Coils Kits

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Glow Plug Relay Module

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Ignition Coil

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Ignition Coils & Spark Plugs Kits

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Ignition Distributor

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Ignition Starter Switch

Ignition Switch Actuator

Knock Detonation Sensor

Relay

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Spark Plug

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Spark Plug Wire

Electronic Control Modules, Ignition & Distributors

Engine Wiring Harness

Intake Manifold Repair Kit

Engine Components & Accessories

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Auxiliary Water Pump

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Expansion Tank

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Expansion Tank Mounting Plate

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Fuel Cooler

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Radiator

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Radiator Hose

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Radiator Support Assembly

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Temperature Sensor

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Turbo Hose

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Water Coolant Pipe

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Water Outlet

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Engine Cooling

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Engine Mount

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Engine Mounts

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Catalytic Converter

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EGR Valve

Emissions Fluid Pump

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Exhaust Fluid Heater

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Exhaust Gas Temperature Sensor

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Exhaust Manifold

Fuel Tank Breather Valve

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Fuel Vapor Leak Detection Pump

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Nitrogen Oxide Sensor

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Secondary Air Injection Check Valve

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Vapor Canister Vent Solenoid

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Exhaust & Emission Systems

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Fuel Filter

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Fuel Injection Control Module

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Fuel Injection Pressure Regulator

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Fuel Injector

Fuel Injector Kit

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Fuel Injector Module Wiring Harness

Fuel Line Kit

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Fuel Pump

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Fuel Sending Unit

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Fuel Tank Filler Neck Pipe

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Fuel Tank Strap

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High Pressure Fuel Pump

Mechanical Fuel Pump

Oil Pressure Relief Valve

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Fuel Systems & Components

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The engine comprises many essential elements such as the lower cylinder block, upper cylinder head(s), and the cooling & lubricating systems. With A-Premium aftermarket engine components, you can expect that your engine deliver years of reliable performance. We offer a diverse selection of engine components from air filters and ignition coils (kits) to fuel pumps to cater to your needs.

Toyota Corolla Idle Air Control Valve