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Common Causes of Faulty Ignition Switches Ignition switches provide the initial power to your car's accessory and engine. They also determine whether your car's key is in the on, accessory, or off position. Keep any extra keys, keepsakes, and other things on a chain from the car keys to avoid issues with the ignition switch. This will reduce mechanical stress on the key cylinder in your car. How the Ignition Switch works The ignition switch is the center of your car. The ignition switch is the first component you touch to start your vehicle and you shouldn't want it to be damaged. This is why it is important to have your ignition switch replaced or repaired when you spot any indications of trouble, such as problems starting or a pulsing engine. The primary function of the ignition switch is to provide the power to other systems in your vehicle including the radio as well as accessories and windows. The ignition switch is also responsible for turning on the engine and starter motor when the key is turned to the 'on position. In order for the ignition system to function there must be a spark that can ignite the air and fuel inside the engine to cause it to start. The ignition coil generates sparks by creating a magnetic field that surrounds the rotor while the current moves through. The magnetic field is created when the rotor spins. This creates the ignition spark. This spark can change the pistons of your engine, which can ignite them and triggering it. Your ignition switch controls the electrical current that flows through the secondary and primary circuits of your ignition system. When the switch is set to the “on” position, the battery is able to send low voltage current through the primary windings of your ignition coil and then through the breaker points. This creates a magnetic field that can ignite the spark plugs and turn the rotor. When the ignition switch is set to “start”, the primary and secondary circuits will be shut off. The electrical connection between the terminals for the distributor cap and rotor break as they spin. This stops the secondary flow, and completes the circuit. This allows the breaker points to close and produce a spark at the spark plug, which then ignites the engine within a matter of seconds. It is important to remember that the ignition switch is a delicate piece machinery, and should not be put under any force beyond what is necessary when inserting or turning it. If you put excessive pressure, the switch could break and you'll require a professional to remove it to repair. Common Ignition Switch Problems It is crucial to keep the ignition switch in good condition because it provides the initial access to the vehicle's power. A damaged switch can trigger a wide variety of vehicle malfunctions that make it difficult to drive or use your favorite gadgets. Understanding the most common causes of failure of the ignition switch is an important first step to identifying and addressing your vehicle's problems. If you have trouble turning the key it could be a sign your ignition switch is malfunctioning. This can mean that you need to jiggle the key or turn it multiple times. This is a result of the wear and tear on the internal circuit or other issues with the ignition switch that can be caused by a variety of factors. auto ignition key replacement When you insert the ignition key, a heavy keychain with a number of keys, key fobs, and other accessories may put extra pressure on the switch. This could cause the switch to overheat, which can accelerate its internal wear and degradation. Extreme temperatures and harsh climates can adversely affect the materials and lubricants in the ignition switch. This can speed up its breakdown with time. Environmental contaminants and moisture may also affect the switches internal components. This can lead to poor connectivity. Manufacturing Defects Certain ignition switches have flaws or defects in their design that could cause premature wear and damage. This can occur due to poor quality materials, assembly errors, or other factors. One customer brought their car into our shop when the radio and dashboard light did not work. We discovered that the ignition switch no anymore supplied power to the accessories. Since the ignition switch is only supposed to supply power to the crank and accessory positions when it's activated, this indicates that there is a problem with the switch. The key may also cause issues with the ignition switch if it gets stuck in the. This is usually an indication that the ignition switch is damaged or worn out, and will need to be replaced. A professional locksmith will employ tools such as a piler or hacksaw blade to remove the key from the ignition. Ignition Switch Replacement The ignition switch sends signals to activate important system of the vehicle. If it is damaged it can prevent your car from starting and may cause damage to other electrical components as well. It is crucial to replace it as soon as you notice any signs of trouble, like the key becoming difficult to turn or not turning at all. You can typically replace the switch by yourself, but you should be careful. It is essential to employ a professional to do this delicate task. You don't want to be stuck in traffic or cause an accident. If your switch is faulty it's most likely due to a worn contact point or a weak connection. Keys that are heavy or have a long keyring can also wear on the switch and cylinder, eventually causing it to break off from the cylinder. You'll be able to see that turning the key requires more force, and sometimes, nothing occurs. This is a sign it's time to replace it however, most people overlook it and keep trying to jiggle the key to turn on their car. Based on the vehicle's model and make, replacing the ignition switch can be straightforward or complicated. In most cases, a technician will remove the steering column cover and disconnect the switch from the cylinder. The technician will then detach the switch from the previous one and replace it with the new one. After that the mechanic will connect the electrical connections and test the switch to ensure that it's working properly. Certain vehicles come with an anti-theft system that requires keys to start the vehicle. The switch will require reprogramming to accept the new key after it's replaced. This isn't the case with all vehicles, since older models can be started by using an ordinary key when the ignition switch is not working. Modern cars generally require a “chipped” key to turn them on. The switch may need to be replaced when the key fails to work. Repair of the ignition switch The ignition switch is responsible for switching off and on electrical power supply to the starter, accessories and powertrain components in your vehicle. Since it is the main connection for transferring power to these components If the ignition switch malfunctions, it can cause your vehicle to lose power in a variety of locations. This is why you must be aware of indications that your ignition switch needs repair or replacement. One of the first indications that your ignition switch is failing is when you start having difficulties turning your key in the ignition. If you are struggling to turn the key, it's a sign that the wafers inside the ignition switch are wearing out. This could be due to regular use or environmental factors such as dust, dirt, or corrosion. A common issue is a stalling engine while driving. This is usually due to the ignition switch not being in a position to supply the engine with sufficient power, which can be frustrating and dangerous for drivers. It is best to go to your local auto shop as soon as you spot any issues with your ignition switch or lock cylinder. Other signs that the ignition switch is going bad include the relays that connect to the accessory not working, which is a sign that the switch isn't able to send electricity to them. It is also possible that the lights on your dashboard are blinking. If you suspect that the ignition switch is defective the first step is to remove the trim around the steering wheel and dash. This will give you access to the ignition switch, which is mounted on a round module on the top of the steering column, or in the center console. You'll need to take out the screws that keep the module in place, and then loosen the wire connectors by using a screwdriver or other tool. After that, you can remove the old ignition switch and replace it with a new one. Before assembling the car, test the ignition switch by turning the key to the ON and then START positions. Re-connect the battery, and ensure that all components are working.