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Transfer case motor actuator&nbsp;is commonly found in four-wheel-drive (4WD) and all-wheel-drive (AWD) vehicles.&nbsp;The transfer case motor actuator is responsible for engaging and disengaging the vehicle's transfer case and it controls the distribution of power between the front and rear wheels, allowing the vehicle to switch between 2WD and 4WD or AWD modes. The transfer case motor actuator typically uses an electric motor to move gears or mechanisms that engage or disengage the transfer case, thus determining whether the vehicle operates in 2WD or 4WD/AWD mode.<h2>Symptoms of a bad transfer case actuator</h2>A bad transfer case actuator can manifest several symptoms, indicating that it may need replacement or repair. Notice these:<ul><li>Difficulty shifting into 4WD: If you have trouble engaging or disengaging the 4WD mode, such as it not shifting into 4WD when commanded or getting stuck in 4WD, it could be a sign of a faulty actuator.</li><li>Strange noises: You may hear unusual noises, such as clicking, grinding, or buzzing sounds when attempting to change between drive modes. These noises can indicate a problem with the actuator motor or gears.</li><li>4WD warning light: If your vehicle has a 4WD indicator light on the dashboard, it may illuminate or flash when there's an issue with the actuator or the transfer case.</li><li>Inconsistent 4WD engagement: The 4WD system may engage or disengage intermittently or unpredictably, making it unreliable when you need it.</li><li>Stuck in neutral: A malfunctioning actuator can result in the transfer case getting stuck in neutral, preventing the vehicle from moving in any drive mode.</li><li>Reduced traction: You may experience reduced traction or difficulty maintaining control in slippery or off-road conditions, as the 4WD system may not engage correctly.</li><li>Leaking fluid: If you notice fluid leaks near the transfer case or actuator, it can be a sign of a seal or gasket failure, affecting the actuator's performance.</li><li>Physical damage: Visual inspection may reveal physical damage or wear on the actuator or its components.</li></ul>

Transfer Case Motor Actuator

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Air Cleaner

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Air Filter Box

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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

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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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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.

2001 Mercury Mountaineer Transfer Case Motor Actuator

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