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<h2><span style="font-size: 18px;">Car air conditioning hose guide</span></h2><p>Air Conditioning Hose (A/C Hose) is a component of your A/C system. There are two types of A/C hoses: high-pressure discharge hoses and low-pressure suction hoses. These hoses transfer the refrigerant among different parts of the AC system and keep your summer trip cool.</p><p>The high-pressure discharge line hose carries the compressed refrigerant from the discharge valve of the compressor, to the condenser. The low-pressure suction line hose carries the refrigerant from the evaporator to the suction valve of the compressor. The temperature in the discharge line hose is hot and the pressure is high. On the contrary, the suction line hose only needs to deal with low temperature and low pressure. The size of a discharge line hose is usually smaller than a suction line hose because the refrigerant vapor and lubricant in the suction line hose need more space to flow. Since the discharge line hose works under a harsher environment, it is not out of expectation that a discharge line hose is usually more expensive than a suction line hose, especially when we are comparing a high-quality discharge line hose and a high-quality suction line hose.</p><p>Over time, the gaskets that seal your A/C suction and discharge hose can break down. If the air conditioning hose in your car leaks or breaks, the biggest sign is that the cooling power of the A/C system becomes insufficient. Even though driving a car with a broken A/C hose is not as dangerous as driving a car with a broken ABS wheel speed sensor, we still recommend you get your A/C hose fixed or changed as soon as possible because a bad air conditioning hose can expose the inner working environment of the A/C system to the outside world. Moisture and other contaminants could be harmful to other components of the A/C system. Fixing the hoses is inexpensive, but repairing other components such as the compressor can be a lot more expensive.</p><p>There is one more thing that you might need to note. It is illegal to release refrigerant into the atmosphere and you are not allowed to handle it unless you have an EPA-approved Section 608 License or a universal refrigerant handler&rsquo;s license. Also, if you don&rsquo;t have an A/C evacuation and charging setup, you will not be able to recover the refrigerant properly. Hence, a better choice is to go to a technician when you find your A/C Hoses broken.</p><h2><span style="font-size: 18px;">Symptoms of A/C hose leak</span></h2><ul><li><strong>Loss of cooling power: </strong>if the level of refrigerant goes down, there won&rsquo;t be enough refrigerant to carry the heat away from the cabin.</li><li><strong>Vents not blowing cool air:</strong> if the air coming from the vents is not cool enough, it can be a good sign of a refrigerant leak.</li><li><strong>Dampness, deposits, or build-up of dried coolant: </strong>minor leaks can cause this kind of symptom.</li><li><strong>Uncommon smells:</strong> A sweet burning smell indicates a refrigerant leak.</li></ul><h2><span style="font-size: 18px;">Checklist for your car air conditioner hose</span></h2><ul><li>Pinholes</li><li>End connection leaks</li><li>Softness</li><li>Cracks or rotting of hose cover</li><li>Discolored fluid</li><li>Mounting bolts</li></ul>

A/C Hose For Cars From $15.99 | A-Premium

A/C Hose

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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

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Air Intake Duct

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Air Intake Hose

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Air Intake Manifold Actuator Control Solenoid

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Air Intake Manifold Flap Adjuster

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Air Intake Manifold Runner Control Sensor

Air Intake Resonator

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Electric Vacuum Pump

Engine Air Duct Assembly

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Engine Air Filter

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Intake Manifold

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Intake Manifold Flap Actuator

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Intake Manifold Repair Bracket

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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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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.

2009 Audi A4 A/C Hose

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