How to Fix Car Ignition Problems

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

You can remove the trim on your steering column using specialized tools to access your ignition cylinder module. Check out your repair manual to learn how to do it right.

1. Make sure to check the Switch

One of the most frequently encountered ignition issues is a malfunctioning switch. It acts as a bridge between two contacts, controlling the time when relays are activated and deactivated. It is less likely to fail because it doesn't channel full power of devices such as the starter. However it's still possible for the switch to be damaged or corrosion-prone.

One indication of a defective switch is a difficulty turning the key. This could 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 common for people to mistake their keys to their car ignition system repair with the keys of someone else, which can result in mechanical damage.

If the switch isn't working there are some things you can try before calling a locksmith. First, make sure that the battery is fully charged and that there are no electrical issues in the system. It is also important to examine the voltage of every component to see if they're providing enough power. After you've completed these steps, it's time to begin troubleshooting.

Fortunately, the ignition switch is easy to replace. It is connected to the ignition module, which is a round piece of metal that holds everything together. To replace it, you'll require an flathead screwdriver as well as something long enough to press the pin into. This can be anything from paintbrush handles to kabob skewer, but you should avoid using any brittle material that could break within the hole.

Once you're ready to complete the work, you'll have to take away any trim pieces covering the area around the ignition switch. After this remove and loosen the screws that are holding the switch in place and then gently remove it. Depending on the model, you might be required to disconnect any wires connected to it. You can learn how to do it in the manual of your vehicle.

It is recommended to have the ignition switch replaced by professionals in the event that it isn't working. Replacing it can involve disabling the steering column which could trigger an unintentional airbag deployment if it's done in a wrong manner. It's best to leave it to your local locksmith to handle this.

2. Check the Wiring

If you're unable to turn the key in the ignition or your car isn't starting, your issue could be due to any number of components in your car ignition switch's ignition system. It is important to know how the ignition system works to identify issues and make the appropriate repairs.

The ignition switch is an electrical switch with multiple poles that is operated by the key. It has four positions, which include "off", "accessory", "run" and the "lock". If the switch is locked (which is usually shown by an red light), the ignition circuit is in operation and car ignition system repair it is not possible to start your vehicle.

You can use a voltage meter to quickly test the ignition switch and ignition coil. The voltmeter should read around 12.6 volts when the ignition switch is in the running position. If the voltage drops below that level, it's a sign there's an open circuit in the system. This could be a battery, solenoid or the ignition coil.

Connect the electrical connector to the ignition switch to ensure no other components interfere with your test. Set the voltmeter to the resistance or continuity modes and then place one lead on one of the terminals on the ignition switch. The other lead should go to the positive terminal of the battery. If the voltage meter shows "open" or does not register any voltage it's time to replace the switch.

If you're replacing the switch, make certain 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, be careful not to strike the ignition cylinder pins with your tools, or they'll become stuck and your engine will not start. You'll have to take off the steering wheel and the gear selector on some vehicles to get access to the ignition cylinder. This can be a challenge, and it is not recommended until you have a vehicle's owner's guideline that states it's safe. If you don't, it is possible to cause irreparable damage to your steering column and the shift mechanism.

3. Check the Cylinder

If you've worked your way through the wiring, battery, and ignition switch but can't get your car to start, it could be time to look at the cylinder. It's the part that holds your key, and is mechanically connected to the steering wheel lock so a would-be thief can't steer the car ignition key replacement without the key.

If your cylinder has started to wear out, you could notice that the key won't turn. Sometimes, the pins inside the cylinder get stuck when they adjust to the shape of the key, car Ignition system repair which may cause your car to not start. The cylinder might also be loose. Tapping it with the small tackhammer may aid. Be careful not mixing the springs, and make sure your key is properly inserted.

If you need to jiggle and move your key around before it will begin, this is another indication that your cylinder has become damaged. This is a red flag and should be addressed immediately, since it will only get worse over time.

To check the cylinder you must remove the cover for the steering wheel and disconnect the battery. Then, you'll be able pull out the old ignition switch and the metal ignition cylinder. If you don't have a spare switch, you may be able take the original ignition cylinder and switch to locksmiths 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 you've 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 could be in the form of your car not running at all, or it may start but not run well. In any case, the root is likely to be one of several factors that block or hinder electricity from jumping across the spark plug gap which ignites your engine's air and fuel mixture.

Be sure to wear protective tools and gloves before you begin working with your spark plugs. Spark plugs can be very hot and could cause serious injuries if touched by hands without gloves.

When a spark plug goes bad, you might be able to see that the top of the electrode's central portion has some light brown or gray residue on it. The electrode could also be covered with an opaque coating. These deposits or fouling can hinder high-voltage electrical currents from crossing the gap of your spark plug, igniting an engine.

If you suspect your spark plugs may be the cause You could test them by remove the plugs from their tube inside the ignition coil. This can be accomplished by disconnecting the coil and the plug wire. Then, you'll need to follow the correct procedure for your car to take off the components that are covering the plugs. After you have removed the plugs, you can place them on a metal surface that is grounded and turn the engine. If they're functioning you will see an intense blue spark near the point of the central electrode.

If you don't detect a spark, you've identified the problem. The next step is to go backwards through the ignition chain and test each component until the spark plugs aren't functioning. It is important to keep in mind that all systems wear down and break down over time and this is particularly true of ignition systems. Routine maintenance can help to slow down the process and avoid an issue at the worst time.