How to Fix Car Ignition Problems
The car won't begin to start until the ignition switch transmits an electrical signal to the starter motor. Normal wear and tear over time may result in the switch not functioning properly.
Using specially designed tools, you can remove your steering column trim and access the ignition cylinder module. Check your repair manual for instructions on how to do this correctly.
1. Make sure to check the Switch
A defective switch is among the most frequently encountered ignition issues. It acts as an intermediary between two contacts, regulating the relays' activation and deactivation. Because it isn't able to harness the full power of devices such as the starter, it's a less powerful component that is less likely to fail. The switch can still be damaged or damaged or corroded.
One indication of a defective switch is a difficulty turning the key. This can be caused by a variety of things that include not inserting the key correctly or the mechanism wearing out over time. It's also commonplace for people to mistake their car keys with the keys of someone else, which can lead to mechanical damage.
If the switch isn't working there are some 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 in the system. Also, you should check the voltage of every component to ensure they are sufficient power. Once you've completed these steps, you can begin troubleshooting.
The ignition switch is simple to replace. G28CarKeys is connected to the ignition module, which is a round piece of metal that connects everything. To replace it, you'll need a flathead screwdriver and something long enough to push the pin inside. You can use anything from a paintbrush, to a Kabob stick, but be careful of anything that is brittle, as it can cause damage to the hole.
If you're ready for the job, you'll need to take off any trim pieces covering the area around the ignition switch. After taking off the trim pieces, remove any screws that are holding the switch in place. Then, carefully take it off. Depending on the model, you may be required to disconnect any wires that connect to it. You can find out how to do it in the instruction manual for your vehicle.
If the ignition switch isn't functioning it is recommended to replace it by professionals. It's not easy to replace the ignition switch, without disabling your steering column. This could result in an unintentional deployment of airbags if you do it incorrectly. For this reason, it is recommended to let your local locksmith handle this for you.
2. Verify the Wire
Your car might not start if you are unable to turn the key or it will not start. This could be due to any number components in the ignition system. Understanding how the ignition system functions will help you identify problems and make the necessary repairs.
The ignition switch is an electric switch with multiple poles that is operated by a key. It has four positions: off run, accessory, and "lock." When the switch is in the lock position (which typically has the red indicator), the ignition circuit is active and it is not possible to start the engine.
To determine whether the ignition switch defective or if the ignition coil itself is defective, you will need to do a quick electrical test using an Voltmeter. The voltmeter should be reading around 12.6 volts when the ignition switch is in the running position. If the voltage is lower than that, there is an open circuit within the system. It could be the battery, solenoid or the ignition coil.
Remove the electrical connector from the ignition switch to ensure there are no other components that could interfere with the test. Set the voltmeter in the continuity or resistance modes and then 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 does not register any voltage it's time to replace the switch.
When replacing the switch, make certain to use a new ignition cylinder and a good quality key cut to ensure that your car will run and start correctly. 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. You'll need to remove the steering wheel as well as the gear selector on some vehicles to get access to the ignition cylinder. This isn't easy, and it is not recommended until you have an owner’s manual that states it's safe. Otherwise serious damage to the steering column and shifting mechanism is likely.
3. Check the Cylinder
If you have tried the battery, the wiring and the ignition switch, but you are still unable to get your car to start, it may be time to examine the cylinder. The cylinder is the part which holds the key and is mechanically attached to the steering lock so that thieves can't drive the car if it's not there.
If your cylinder is beginning to wear out, you might be noticing that your key isn't able to turn. The pins in the cylinder can get stuck as they adapt to the shape of your key. This can cause your car to not start. The cylinder may also be loose. Tapping it with the tackhammer can aid. Be careful not to disturb the springs in the cylinder and ensure that your key is correctly installed prior to tapping.
If you are required to jiggle and move your key before it will start, this is another sign that your cylinder has been damaged. This is a sign of trouble and should be corrected immediately, as it can continue to get worse as time passes.
To check the cylinder you will need to remove the steering wheel cover and disconnect the battery. The old ignition switch should be simple to remove, as well as the cylinder made of steel. If you don't own an extra switch, you might be able take the original ignition cylinder and switch to locksmiths for reuse so long they're in good shape. After replacing the switch and cylinder ensure that you reconnect the wiring harness and secure it and then reattach any covers or panels that you have removed.
4. Check the Spark Plugs
The spark plug is the final link in your ignition chain. If it fails it will stop the engine from running. It could be that your vehicle won't start at all or will run badly. In either case, the reason is likely to be one of the factors that block or hinder the flow of electricity across the spark plug gap, which ignites your engine's air and fuel mixture.
Before you begin working on your spark plugs, make sure you're working on a safe surface and using gloves and tools that are protected to keep from getting struck. Spark plugs can get very hot and can cause serious injuries if handled with hands that are not protected.
There may be a slight gray or brown residue on the edge of the electrode when a spark plug is bad. It could also have a black layer on the side of the electrode. These deposits, also known as fouling, can stop high-voltage electrical current from crossing the spark plug gap and igniting your engine.
If you suspect that your spark plugs might be the culprit, you can test them by having them remove the plugs from their tube inside the ignition coil. This can be done by disconnecting the coil from the plug wire, and following the proper procedure for your vehicle to remove components that cover the spark plugs. After removing the plugs place them on a metal surface that is grounded. Then start the engine. If they're working you should see a strong blue spark across the gap in the middle of the central electrode.
If you don't see any spark, you've identified the issue. Next, you'll need to go backwards through the ignition chain and test each component until the spark plugs are no longer functioning. All systems wear out and eventually break and this is especially relevant to ignition systems. Routine maintenance can help to reduce the time it takes to repair and prevent an issue at the worst possible time.