How to Fix Car Ignition Problems
The car won't start until the ignition switch transmits an electrical signal to the starter motor. Normal wear and tear over time can cause the switch malfunction.
Utilizing special tools, you are able to remove the trim on your steering column and access the ignition cylinder module. Refer to your repair manual for learn how to do it correctly.
1. Make sure to check the Switch
One of the most common ignition issues is a defective switch. It controls when relays are activated and deactivated through the use of a bridge. Because it doesn't channel the full power of devices like the starter, it's a lighter component that's less likely to fail. However, it's still possible for the switch to be damaged or corrosion-prone.
A bad switch can be identified by a difficult time turning the key. This can be caused by many factors such as not inserting the correct key correctly or wearing down the mechanism over time. It's not common for people to confuse their keys with those of others. This could cause mechanical damage.
If the switch isn't working, there are some things you can try before calling a locksmith. First, you'll want to make sure the battery is fully charged and there are no other electrical issues in the system. It is also important to examine the voltage of each component to make sure they're supplying enough power. Once you've completed these steps, it's now time to start troubleshooting.
Fortunately, the ignition switch is pretty easy to replace. It is connected to the ignition module, which is a round piece of metal that connects everything. To replace it, you'll require a flathead screwdriver and something that is long enough to push the pin into. This could be anything from an artist's brush to a Kabob skewer. However, you should avoid using anything brittle that could break inside the hole.
Remove any trimming pieces that cover the area around the switch when you're ready to work. After removing the trim pieces, remove any screws that are holding the switch in place. Then, carefully pull it out. Depending on the model, you may need to disconnect any cables connected to it. If you have a manual for the vehicle you own it will explain exactly how to do this.
It is best to have the ignition switch replaced by a professional when it's not working. It's not easy to replace the ignition switch without removing your steering column. This could result in an accidental deployment of airbags when you don't do it correctly. Therefore, it's best to have your locksmith take care of this for you.
2. Check the Wiring
Your car might not start if you are unable to turn the ignition key or it will not start. This could be due to a number components in the ignition system. It's crucial to understand how the ignition system works so that you can pinpoint issues and make the necessary repairs.
The ignition switch is a low voltage multi-pole electrical switch which is operated by a key. It has four positions, including "off", "accessory", "run" and the "lock". If the switch is locked (which is usually marked by a red light) the ignition circuit is in operation and it is not possible to start your car.
To determine whether the ignition switch is bad or if the ignition coil itself is bad, you have to conduct an electrical test using the help of a voltage meter. If the ignition switch is set to run, the voltmeter should show around 12.6, If the voltage drops below that level, it's a sign there's an open circuit within the system. This could be at the battery, the solenoid or the ignition coil itself.
Remove the electrical connector from the ignition switch to ensure that no other components can interfere with the test. Then you should set the voltmeter in the continuity or resistance mode and put one lead on one of the ignition switch's terminals. The other lead should go to the positive terminal of the battery. If the voltmeter shows "open" or does not register any voltage, you must replace the switch.
Use a new ignition key and a high-quality ignition cylinder when you replace the switch to ensure that your vehicle runs and starts properly. Also, when replacing the ignition switch, you must be careful not to hit the ignition cylinder pins with your tools, or they'll get stuck and your engine won't be able to start. In some vehicles, you'll need to remove the steering column and the gear selector to get access to the ignition cylinder. This can be difficult and is not recommended unless you have an owner's guideline that says that it is safe to do so. If you don't then you could cause severe 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 may be time to look at the cylinder. The cylinder is the part that holds the key and is mechanically attached to the steering lock to ensure that burglars won't be able to drive the car if it's not there.
You might notice that your key will not rotate if the cylinder is worn out. The pins inside the cylinder can get stuck as they adapt to the shape of your key. This could cause your vehicle to not start. Or, the cylinder might be shaky and a tap using a small tack hammer can help to free it. Be careful not to jumble the springs within and make sure that your key is properly placed before tapping.
If you need to jiggle and move the key before it can begin, it is a indication that your cylinder has been damaged. This is a sign of trouble, and it should be corrected right away, since it will only get worse over time.
To test the cylinder, you'll have to disconnect your battery, and then remove the cover around your steering wheel until you can access the ignition module. The old ignition switch should be simple to take off, as will the cylinder made of steel. If you don't own an extra switch, you may be able to bring your original ignition cylinder as well as switch to locksmiths for reuse as long as they're in good condition. After replacing the ignition switch and cylinder ensure that you connect the wiring, secure it and reattach all covers and panels that you removed.
4. Check Spark Plugs
The spark plug is your ignition system's last link. When it breaks, the engine can't run. It could be that your car will not start at all, or it will run badly. In either case, it is likely that one of several things are hindering or preventing electricity from jumping across spark plug gaps, which then ignites the air and fuel mixture in your engine.
Before you begin working on your spark plugs, make sure that you are working on a level surface and using gloves and tools that are protected to prevent being zapped. Spark plugs can be very hot and can cause serious injuries if touched by hands without gloves.
You might notice a light brown or gray residue on the edge of the electrode if a spark plug is bad. It may also have a black coating on the opposite side of the electrode. These deposits, also known as fouling, can stop high-voltage electricity from jumping across the spark plug gap and igniting your engine.
If you believe that your spark plugs are at fault You can test them by taking them from their tube in the ignition coil. You can do this by disconnecting the coil from the plug wire and following the appropriate procedure for your vehicle to remove the components that cover the spark plugs. After removing the plugs, place them on a surface that is grounded and begin the engine. If they are good you should see a strong blue spark crossing the gap in the middle of the central electrode.
If you don't detect a spark, you've discovered the problem. The next step is to go through the ignition chain, testing each part until you find out what's blocking the spark plugs from performing their job. It is important to keep in mind that all systems wear out and break down over time and this is particularly the case with ignition systems. However, van ignition repair can help to slow down the process and avoid a major headache at the worst moment.