How to Fix Car Ignition Problems
The car will not start unless the switch transmits an electrical signal to the starter. Normal wear and tear over time can result in the switch not functioning properly.
With the help of special tools, you are able to remove your steering column trim and gain access to the ignition cylinder module. Consult the repair manual to get guidance on how to do this in a safe manner.
1. Make sure you check the Switch
A malfunctioning switch is among the most common ignition issues. It regulates the moment relays are activated, and deactivated through the use of bridge. Because it isn't able to harness the full power of devices like the starter, it's a lighter-duty component that is less likely to fail. However it's still possible for the switch to become damaged or damaged or corroded.
One sign of a damaged switch is a difficulty turning the key. This could be due to a number of factors that include the wrong way to insert a key, or deteriorating the mechanism over time. It's not uncommon for people to confuse their keys with those of others. This could cause mechanical damage.
If the switch isn't functioning there are a few things you can try before calling a locksmith. You'll first want to ensure that the battery is fully charged and there are no electrical issues in the system. Also, you should verify the voltage of every component to ensure that they are providing enough power. After you've completed the above steps, you're ready to begin troubleshooting.
Fortunately the ignition switch is simple to replace. It's connected to the ignition cylinder, a round module that holds everything together. You'll need a flathead and something long enough for you to insert the pin. This could be anything from paintbrush handles to Kabob skewer, but it is best to avoid anything that is brittle and break within the hole.
If you're ready for the job, you'll need to remove any trim pieces that cover the area around the ignition switch. After this remove and loosen the screws that hold the switch in place then carefully pull it out. Depending on the model, you might be required to disconnect any wires that connect to it. If you have a manual for the vehicle you own and model, it will show you exactly how to do this.
It's best to get the ignition switch replaced by an expert in the event that it isn't working. It's difficult to replace the ignition switch without disabling your steering column. This could result in the unintentional airbag deployment if you do it incorrectly. Therefore, it's best to have your locksmith take care of this for you.
2. Verify the Wire
If you're unable to turn the ignition key or your car isn't starting, your issue could be due to any of the components of your vehicle's ignition system. Understanding how the ignition system works can help you spot problems and make the necessary repairs.
The ignition switch is an electric switch that has multiple poles and 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 a red indicator) the ignition circuit is in operation and it's not possible to start the engine.
To determine whether the ignition switch is defective or the ignition coil is defective, you will must conduct a quick electrical test using an voltage meter. If the ignition switch is set to run, the voltmeter should show approximately 12.6, If the voltage drops below that, it indicates there's an open circuit somewhere in the system. This could be at the battery, the solenoid or the ignition coil itself.
Connect the electrical connector to ensure that it doesn't interfere with the test. Then set the voltmeter to the resistance or continuity mode and place one lead on one of the terminals on the ignition switch. The other lead should be connected to the positive terminal of the battery. If the voltage meter shows "open" or doesn't register any voltage it's time to replace the switch.
Make sure you use a new ignition key and a top-quality ignition cylinder when replacing the switch to ensure that your vehicle starts and runs correctly. When you replace the switch, make sure not to hit the pins of the ignition cylinder using your tools. In the event of a collision, they'll get stuck and your engine won't run. In some vehicles, you'll have to remove the steering column and gear selector to access the ignition cylinder. This isn't easy and is not recommended unless you have an owner's guideline that says it's safe to do this. Otherwise serious damage to the steering column and shifting mechanism is likely.
3. Check the Cylinder
If you've sifted through the wiring, battery and ignition switch but can't get your car to start, it might be time to examine the cylinder. It's the component that holds your key and is connected to the lock on the steering wheel to ensure that thieves can't drive the car without a key.
If your cylinder is beginning to wear out, you may notice that the key won't turn. Sometimes, the pins within the cylinder are stuck when they adjust to the shape of your key, which may cause your car not to start. The cylinder could also be sloppy. A tap using the small tackhammer may help. Be sure not to mix with the springs and ensure that your key is properly placed.
Another indication that your cylinder is in trouble is when you have to turn the key and test it in various positions before it starts. This is a red flag and needs to be fixed immediately, since it will continue to get worse as time passes.
To check the cylinder you must remove the steering wheel cover and disconnect the battery. The old ignition switch should be easy to take off, as will the metal ignition cylinder. If you don't have a spare ignition switch lying around, it's likely that you could take your original ignition switch and the cylinder to a locksmith and reuse them as long as they're in good condition. After replacing the switch and cylinder, make sure you connect 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 the last link in your ignition chain. The engine will not run when the spark plug is broken. This could take the form of your car not starting at all, or it could start but run poorly. In either case, the reason is likely to be one of several factors that block or hinder the flow of electricity across the spark plug gap which causes your engine's air and fuel mixture to run.
Before you begin working on your spark plugs, be sure that you work on a safe surface, using protective gloves and tools to prevent being struck. Spark plugs are hot and can cause serious injuries if you touch them with bare skin.
If a spark plug goes bad, you may be able to see that the top of the central electrode is covered with a light gray or brown residue on it. The electrode could also be covered with a dark layer. These deposits, or corrosion, can prevent high-voltage electrical current from crossing the spark plug gap and sparking your engine.
If you suspect that your spark plugs are at fault, you can test them by taking them from their tube inside the ignition coil. This can be done by disconnecting the coil from the plug wire, and following the correct procedure for your car to remove any components that are covering the spark plugs. After G28 Car Keys have removed the plugs, place them on a surface that is grounded and begin the engine. If they're working, you should be able to see a strong blue spark on the edge of the central electrode.
If you don't see a spark, you've identified the problem. The next step is to go backwards through your ignition chain and check each component until the spark plugs are no longer working. It's important to remember that all systems wear out and break down with time and this is particularly applicable to ignition systems. However, regular maintenance can help slow the process down and prevent a major headache at the worst moment.