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<h2>What is the hose connected to the air intake?&nbsp;</h2>An air intake hose, also called an air cleaner intake hose, is a flexible rubber or plastic tube that connects the air filter box or intake manifold to the throttle body or carburetor of an internal combustion engine. The primary function of an engine air intake hose is to carry fresh, filtered air from the air filter box to the engine to support combustion. Some air intake hoses also contain resonators or silencers to reduce intake noise, while others may incorporate sensors for measuring the air flow or temperature. Air intake hoses are usually made of heat-resistant materials to withstand high engine temperatures and exposure to hot, dry air that passes through the engine bay.<h2>Air intake hose leak symptoms</h2><ul><li>Smell of gasoline: A leaky air cleaner intake hose can allow excess air to enter the engine, leading to a rich fuel mixture. This can cause a strong smell of gasoline inside or outside the vehicle.</li><li>Dirty air filter: If the engine air intake hose is leaking, dirt and debris can bypass the air filter and enter the engine, causing it to run inefficiently. This can result in a dirty air filter that needs to be replaced more frequently.</li><li>Engine hesitation: An air filter hose leak can cause the engine to hesitate or stall when the accelerator pedal is pressed, especially at high speeds.</li><li>High-pitched squeal: A leaking air filter intake hose can create a high-pitched squeal or whistling noise as air escapes from the hose.</li></ul><h2>How to replace the air intake hose?</h2>An air&nbsp;cleaner&nbsp;intake hose can become cracked, torn, or loose&nbsp;as time goes by, which can affect the engine's performance and fuel efficiency.&nbsp;When you have detected the failure symptoms listed above, you may consider replacing your car&rsquo;s air intake hose.Refer to the steps below:<ol><li>Locate the air intake hose between the air filter housing and the throttle body or mass airflow sensor.</li><li>Loosen the clamps or bolts that hold the old air intake hose in place.</li><li>Remove the old air intake hose.</li><li>Install the new air intake hose by attaching it to the air filter housing and the throttle body or mass airflow sensor.</li><li>Tighten the clamps or bolts to secure the new air intake hose in place.</li><li>Start the engine and check for any air leaks or abnormal sounds.</li></ol>

Air Intake Hose

Air Cleaner

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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

Air Intake Manifold Actuator Control Solenoid

Air Intake Manifold Flap Adjuster

Air Intake Manifold Runner Control Sensor

Air Intake Resonator

Electric Vacuum Pump

Engine Air Duct Assembly

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Engine Air Filter

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Intake Manifold

Intake Manifold Flap Actuator

Intake Manifold Repair Bracket

Intake Manifold Runner Control Valve

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Intercooler

Intercooler Hose

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Oxygen Sensor

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Pressure Sensor

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Supercharger Pulley Drive Unit

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Supercharger Snout Rebuild Kit

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Throttle Body

Throttle Cable

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Throttle Position Sensor

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Turbocharger

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Turbocharger Gasket Kit

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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

Camshaft Kit

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Camshaft Timing Gear

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Camshafts

Chain Tensioner Adjuster

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Cylinder Head

Cylinder Head Assembly

Eccentric Shaft Actuator

Engine Timing Belt

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Engine Valve Cover

Engine Valve Cover Gasket

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Harmonic Balancer

Rocker Arm

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Rocker Arm Shaft Lifter Assembly

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Timing Belt Kit

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Timing Chain Gear

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Timing Chain Kit

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Timing Cover

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Timing-Control Valve Solenoid

Valve Cover Gasket

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Valve Lifter Guides

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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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Crank Installer Tool

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Crankcase Breather Hose

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Crankcase Breather Valve

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Crankshaft Position Sensor

Crankshaft Pulley

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Engine Oil Dipstick

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Engine Oil Dipstick Tube

Engine Oil Filter

Engine Oil Pan Gasket

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Flywheel

Harmonic Balancer Crankshaft Hub

Knock Sensor

Oil Baffle

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Oil Cooler

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Oil Cooler Line

Oil Drip Pan

Oil Filler Cap

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Oil Filter

Oil Filter Base

Oil Filter Cover

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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

Oil Separator

Serpentine Belt

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Cranks, Pistons, Oil & Components

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Camshaft Position Sensor

Camshaft Position Sensor & Magnet Kit

Connector Plug

Distributor Cap

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Electronic Ignition System

Engine Valve Covers & Ignition Coils Kits

Glow Plug

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Glow Plug Relay Module

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Ignition Coil

Ignition Coils & Spark Plugs & Wires Kits

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Ignition Coils & Spark Plugs Kits

Ignition Coils & Wires Kits

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Ignition Distributor

Ignition Lock Cylinder

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Ignition Starter Switch

Ignition Switch Actuator

Kill Switch

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

Pulley

Engine Components & Accessories

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Active Grille Shutter Actuator

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Auxiliary Water Pump

Drive Motor Inverter Cooler

Electric Engine Water Pump

Engine Coolant Air Bleeder Valve

Engine Coolant Pipe

Engine Coolant Shut Off Valve

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Expansion Tank

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Expansion Tank Mounting Plate

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Fan Pulley Bracket

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Fuel Cooler

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Overflow Hose Connector

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Radiator

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Radiator Control Fan Module

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Radiator Core Support Skid Bar Plate

Radiator Fan Cooling Motor

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Radiator Hose

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Radiator Support Assembly

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Engine Cooling

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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.

1999 Toyota 4Runner Air Intake Hose

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