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<h2>What is an air flow sensor?</h2>
An air flow sensor, also known as a mass airflow (MAF) sensor, is an essential component of a vehicle's engine management system. It is designed to measure the amount of air that is entering the engine to determine the appropriate amount of fuel to be injected. The sensor typically consists of a sensing element that measures the airflow, a heating element that helps to warm up the incoming air, and a signal output that sends data to the vehicle's computer.&nbsp;
The air flow sensor plays a crucial role in the engine's performance and fuel efficiency, as a malfunctioning sensor can cause the engine to receive too much or too little fuel, leading to decreased performance, increased emissions, and poor fuel economy. Therefore, it is important to ensure that the air flow sensor is working properly and to replace it if it is found to be faulty.
<h2>What happens when an air flow sensor malfunctions?</h2>
When an air flow sensor malfunctions, it can cause a number of problems with your vehicle's performance. The air flow sensor is responsible for measuring the amount of air entering the engine, which is used to determine the correct amount of fuel to be injected. If the sensor is not working properly, it can cause the engine to receive too much or too little fuel, which can lead to a variety of issues such as decreased fuel efficiency, poor engine performance, other engine component damages, etc.
<h2>How much does it cost to replace an air flow sensor?</h2>
The cost of replacing an air flow sensor can vary depending on the make and model of your vehicle and where you go to have the work done. On average, you can expect to pay anywhere from $100 to $400 for parts and labor.
If you have a basic understanding of mechanics, you may be able to replace the air flow sensor yourself, which can save you money on labor costs. However, it's important to note that some vehicles have sensors that are more difficult to access, which may require special tools and expertise to replace.
It's also worth noting that simply replacing the air flow sensor may not always fix the underlying issue. If the sensor is malfunctioning due to a larger problem with the engine or emissions system, additional repairs may be needed. It's best to have your vehicle properly diagnosed by a qualified mechanic before replacing any parts to ensure that the correct repairs are made.

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

Air Flow Sensor

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Air Filter Box

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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Vacuum Pump

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Air Filters & Intake Systems

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Camshaft Adjuster

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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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Oil Cooler

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Oil Filter

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Oil Filter Housing

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Oil Level Sensor

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Oil Pan

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Oil Pump

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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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Ignition Coil

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Ignition Coils & Spark Plugs Kits

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Ignition Distributor

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Knock Detonation Sensor

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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

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Idle Air Control Valve

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.

Ford Expedition Air Flow Sensor