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How to Fix Car Ignition Problems

A car won't start unless the ignition switch is sending an electrical signal to the starter motor. Normal wear and tear over time may cause the switch to malfunction.

You can remove the steering column trim with special tools to access the ignition cylinder module. Refer to your repair manual for guidance on how to do this correctly.

1. Make sure you check the Switch

One of the most frequent ignition problems is a bad switch. It regulates when relays are activated and deactivated by acting as bridge. Because it doesn't channel the full power of devices like the starter, it's a lighter-duty component that's less likely fail. However, it's still possible for the switch to become damaged or corroded.

A malfunctioning switch is recognized by a slow time turning the key. This could be due to a number of factors that include incorrectly inserting a key or the mechanism being worn out over time. It's also commonplace for people to mistake their car keys with the keys of someone else, which can cause mechanical damage.

If the switch isn't functioning, there are some things you can try before calling a locksmith. First, you'll want to make sure that the battery is charged and that there aren't any other electrical issues within the system. Also, you should check the voltage of each component to see if they're supplying adequate power. Once you've completed these steps, you'll be able to begin troubleshooting.

The ignition switch is easy to replace. It is connected to the ignition module, which is a round component that connects everything. You'll need a flathead and something that is long enough to push the pin into. You can make use of anything from a paintbrush to kabob stick, but avoid anything brittle as it could break into the hole.

Remove any trim pieces that cover the area around the switch when you are ready to get started. After taking off the trim pieces, take off any screws that hold the switch in position. Then, carefully remove it. Depending on the model you may need to disconnect the cables that connect to it. You can find out how to do this in the manual of your vehicle.

It is best to have the ignition switch replaced by professionals in the event that it isn't working. The replacement process involves disabling the steering column which could result in unintentional airbag deployment if done in a wrong manner. Therefore, it's best to have the locksmith in your area handle this for you.

2. Verify the Wire

Your car may not start if you cannot turn the key or if it will not start. car ignition replacement near me could be due to a number components in the ignition system. Understanding how the ignition system works can help you spot problems and make the correct repairs.

The ignition switch is a low voltage multi-pole electrical switch which is operated by a key. It has four positions, which include "off", "accessory", "run" and the "lock". When the switch is in the lock position (which typically has the red indicator) the ignition circuit is in operation and it is not possible to start the engine.

You can use a voltage meter to quickly test the ignition switch or ignition coil. When the ignition switch is running, the voltmeter should show approximately 12.6, If the voltage falls below that, it indicates there's an open circuit in the system. This could be a solenoid, the battery, or the ignition coil.

Disconnect the electrical connector from the ignition switch to ensure that no other components interfere with your test. Then you should set the voltmeter in the continuity or resistance mode and place one lead on one of the ignition switch terminals. The other lead should go to the positive terminal on the battery. If the voltmeter shows "open" or does not register any voltage, you should replace the switch.

When you're replacing the switch, make sure to use a new ignition cylinder and a good quality key cut to ensure that your vehicle will run and start correctly. Also, when replacing the ignition switch, you must be cautious not to touch the ignition cylinder pins with your tools, or they'll get stuck and your engine will not start. In some vehicles, you'll need remove the steering column and the gear selector to access the ignition cylinder. This can be a challenge and is not recommended unless you have an owner's manual that states it's safe to do so. If you do not you could cause irreparable 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 still can't get your car to start, it may be time to check the cylinder. The cylinder is the part that holds the key. It is mechanically linked to the steering lock so that burglars won't be able to drive the car if it's not there.


If your cylinder has started to wear out, you could notice that the key won't turn. Sometimes, the pins inside the cylinder become stuck as they adapt to the shape of your key, which may cause your car to not start. The cylinder could also be shaky and a tap using a small tack hammer can help to free it. Be careful not to jumble the springs in the cylinder and ensure that the key is correctly inserted before tapping.

If you have to move the key around before it will begin, it is a indication that your cylinder is gone bad. This is a bad indication and should be addressed immediately, as it will continue to get worse as time passes.

To check the cylinder you must remove the cover for the steering wheel and disconnect the battery. Then, you'll be able to pull out the old ignition switch and the cylinder made of metal. If you don't have a spare ignition switch lying around, it's likely possible to take your original ignition switch and cylinder to a locksmith to reuse them, as long as they are in good condition. After replacing the switch and cylinder make sure you connect the wiring harness, secure it in place and then 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 will not 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, it is likely that one of several things are hindering or preventing electrical current from crossing spark plug gaps, which then ignites the mixture of fuel and air in your engine.

Be sure to wear protective tools and gloves before working with your spark plugs. Spark plugs can get very hot and can cause serious injuries if touched with bare hands.

You may notice a light brown or gray residue on the edge of the electrode when the spark plug is damaged. The electrode may also have a dark coating. These deposits or fouling can prevent high-voltage electrical current from crossing the gap of your spark plug, igniting an engine.

If you believe that your spark plugs are to blame You can test them by taking the plugs from their tube in the ignition coil. You can do this by disconnecting the coil from the plug wire and following the correct procedure for your car to remove components that cover the spark plugs. Once you have removed the plugs you can place them on a grounded metal surface and turn the engine. If they're working you will see a bright blue spark on the edge of the central electrode.

If you don't see a spark you have identified the problem. The next step is to work back through the ignition chain, testing each component until you discover what's hindering the spark plugs from performing their job. It is important to keep in mind that all systems wear down and break down with time, and this is especially applicable to ignition systems. Regular maintenance can reduce the time it takes to repair and avoid an issue at the worst time.

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Pub: 29 Apr 2024 03:39 UTC
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