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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 Filter Box

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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

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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

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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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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 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

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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.

2003 Toyota 4Runner Transfer Case Motor Actuator

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