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<h2>The capabilities of the ignition starter switch</h2>An ignition starter switch&nbsp;is a device in many vehicles that allows the driver to start the engine. It typically has several positions:<ul><li>Off - The engine is turned off and the electrical systems are deactivated.</li><li>Accessory - Allows power to be supplied to electrical accessories like the radio or climate control without starting the engine.</li><li>On/Run - Turns on the vehicle's electrical system and allows the engine to run once it is started.</li><li>Start - Engages the vehicle's starter motor to crank and start the engine.</li></ul>The ignition switch&nbsp;is the key to starting your car's engine. When activated, it ignites the fuel, supplies fuel to the engine, and engages the starter motor, all in a coordinated sequence. This allows you to start your car easily and reliably&nbsp;with a simple turn of the key or push of a starter button.<h2>Identifying ignition switch&nbsp;problems</h2>Key Turning Difficulty:&nbsp;If your car key is hard to turn and doesn't spring back when you try to start it, the&nbsp;ignition&nbsp;starter switch&nbsp;might be the culprit. Check the switch for any damage like cracks, burns, or rust. If you find any, the switch may need to be replaced.Engine Stalling:&nbsp;If your engine starts but dies right away, the ignition switch&nbsp;might be faulty. Check if it's providing continuous power when in the "on" position using a multimeter. If not, replace the switch.No Starter Response:&nbsp;If your starter doesn't make any noise when you turn the key to "start," the ignition&nbsp;switch&nbsp;might be the problem. Check for voltage at the switch's terminals with the key in "start." No output voltage with input voltage means the ignition starter switch&nbsp;is faulty.Electrical Accessory Failure:&nbsp;If your car's accessories don't work with the ignition in "ACC" but the engine is off, the ignition switch&nbsp;might be faulty. Listen for a clicking sound from the starter when you try to start the car. If there's no clicking, the switch might be the problem.Observe Vehicle Behavior:&nbsp;A stuck key, engine stalling right away, or accessories not working in "ACC" mode could all point to a faulty ignition switch. Compare your car's behavior to how it should normally work to figure out if the switch is the problem.If your ignition starter switch&nbsp;shows any of the symptoms mentioned and fails the tests, it's time to replace it to fix your engine starting and electrical issues.&nbsp;When your ignition system encounters other problems, you should also consider replacing other components, such as the <a href="https://a-premium.com/ignition-switch-actuator">ignition switch actuator</a>.<h2>Get reliable parts for your ignition&nbsp;switch&nbsp;replacement</h2>A-Premium ignition starter switches&nbsp;are&nbsp;engineered with uncompromising quality, designed to deliver a seamless and reliable starting experience for your vehicle. Crafted using premium, durable materials, our ignition switches&nbsp;are built to withstand the demands of daily driving.&nbsp;As part of our commitment to customer satisfaction, we offer free standard shipping, a 90-day return policy, and a 1-year warranty. Our dedicated customer service team is also available to assist you throughout your purchase journey.

Ignition Starter Switch

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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

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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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.

Mercury Marquis Ignition Starter Switch