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How to Fix Car Ignition Problems

The car won't begin to start until the ignition switch is sending an electrical signal to the starter motor. Over time, normal wear and tear could cause the switch to malfunction.

Using special tools, you can remove the trim on your steering column and gain access to the ignition cylinder module. Consult your repair ignition lock cylinder manual for guidance on how to do this in a safe manner.

1. Check the Switch

A malfunctioning switch is among the most frequent ignition problems. It controls the time when relays are activated and deactivated by acting as bridge. It is less likely to fail because it does not channel the full power from devices such as the starter. The switch can still be damaged or corrosion-prone.

A defective switch is identified by a difficulty turning the key. This can be due to a number of factors such as the wrong way to insert a key, or wearing down the mechanism over time. It's also commonplace for people to mix up their car ignition switch keys with the keys of someone else, which can result in mechanical damage.

If the switch isn't functioning, there are a few things you can try before calling a locksmith. First, you must ensure that the battery is fully charged and there aren't any electrical issues with the system. It is also important to test the voltage of each component to see if they're providing enough power. Once you've completed these steps, you're ready to start troubleshooting.

The ignition switch is simple to replace. It's connected to the ignition cylinder, which is a round module that connects everything. You'll need to use a flathead and something long enough to press the pin in. You can make use of anything from a paintbrush to Kabob stick, but you should avoid anything that is hard as it could break into the hole.

Remove any trimming pieces that are covering the area around the switch when you are ready to go. After this take off and loosen any screws that keep the switch in place and then gently remove it. Depending on the model you may need to disconnect the cables that connect to it. If you have an instruction manual for your vehicle and model, it will show you exactly how to do this.

If the ignition switch isn't functioning it is recommended to have it replaced by professionals. It can be difficult to replace the ignition key replacement cost switch without removing the steering column. This could lead to the unintentional deployment of airbags if you do it incorrectly. For this reason, it's often best to have the locksmith in your area handle this for you.

2. Verify the Wire

Your car might not start if it is difficult to turn the ignition key or it will not start. This could be due a number of components within the ignition system. It is important to know how the ignition system works so that you can pinpoint problems and make the right repairs.

The ignition switch is an electric switch that has multiple poles and is operated by the key. It has four positions, including "off", "accessory", "run" and the "lock". When the switch is in the lock position (which typically has an indicator in red) the ignition circuit is active and it is not possible to start the engine.

To determine whether the ignition switch is defective or if the ignition coil is defective, you will have to conduct an electrical test with a voltmeter. The voltmeter should read around 12.6 volts when the ignition switch is in the run position. If the voltage is lower than that then there is an open circuit within the system. This could be at the battery, the solenoid or the ignition coil itself.

Disconnect the electrical connector so that it does not interfere with the test. Set the voltmeter to the resistance or continuity modes and place one lead onto one of the terminals on the ignition switch. The other leads should go to the positive terminal on the battery. If the voltmeter shows "open" or does not register any voltage, it's time to replace the switch.

If you're replacing the switch, be sure to use a brand new ignition cylinder and a top quality key cut to ensure that your vehicle will start and run correctly. When replacing the switch, be sure not to touch the pins of the ignition cylinder using your tools. In the event of a collision, they'll become stuck and the engine won't run. In certain vehicles, you'll need remove the steering column and the gear selector to access the ignition cylinder. This can be a challenge and should not be done unless you have an owner's manual that states it's safe to do so. If you do not you could cause severe damage to your steering column and the shift mechanism.

3. Check the Cylinder

If you've tried the battery, the wiring, and the ignition switch but you are still unable to get your car started, it may be time to inspect the cylinder. It's the component that holds your key, and is mechanically connected to the lock on the steering wheel so that a potential thief cannot steer the car without keys.

You might be noticing that your key does not turn if the cylinder has worn out. The pins of the cylinder may become stuck as they adapt to your key's shape. This could cause your vehicle to not start. The cylinder might also be loose. Tapping it with a small tackhammer will help. Be careful not mixing up the springs and ensure that your key is correctly inserted.

If you need to jiggle and move your key before it will begin, this is another sign that your cylinder has gone bad. This is a sign of trouble, and it should be corrected right away because it will worsen over time.

To examine the cylinder you'll need to unplug your battery and take off the cover on your steering wheel until you're able to access the ignition module. You'll then be able pull out the old ignition switch and the cylinder made of metal. If you don't own a spare switch, you may be able take the original ignition cylinder and switch to a locksmith for reuse as long as they're in good condition. After replacing the switch and cylinder ensure that you reconnect the wiring harness and secure it and reattach any covers or panels that you have removed.

4. Check the Spark Plugs

The spark plug is your ignition system's last link. The engine won't start when the spark plug is broken. It can be that your vehicle won't start at all or will run badly. In either case, the reason is likely to be one of a few factors that block or hinder the flow of electricity across the spark plug gap, which causes your engine's air and fuel mixture.

Be sure to wear gloves and protective tools before you begin working with your spark plugs. Spark plugs can be hot and cause serious injury when you touch them with your naked skin.

If a spark plug goes bad, you may notice that the tip of the central electrode has some light brown or gray residue on it. The electrode may also have a dark layer. The deposits or fouling may hinder high-voltage electrical currents from jumping across the gap between the spark plug and starting an engine.

If you suspect that your spark plugs could be to blame, you can test them by removing the plugs from their tube in the ignition coil. This can be done by disconnection of the coil and the plug wire. Then, you will need to follow the correct procedure for your car to remove the components that surround the plugs. After removing the plugs place them on a surface that is grounded, and start the engine. If they're working you will be able to see a strong blue spark extending across the gap in the middle of the central electrode.

If you aren't seeing a spark, you have found the issue. The next step is to work back through the ignition system chain, testing each component until you can determine what is blocking the spark plugs from performing their job. It's important to remember that all systems wear down and break down with time, and this is especially true of ignition systems. Routine maintenance can help to reduce the wear and tear and avoid a major headache at the worst time.