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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 can cause the switch to malfunction.

You can remove the trim on your steering column using specially designed tools to gain access to the ignition cylinder module. Consult your repair manual to learn how to do it right.

1. Make sure you check the Switch

One of the most common ignition problems is a bad switch. It acts as an intermediary between two contacts, regulating the time when relays are activated and deactivated. Since it doesn't transmit the full power of devices like the starter, it's a lighter component that's less likely fail. However it's still possible for the switch to get damaged or corrosion-prone.

One sign of a bad switch is difficulty turning the key. This can be caused by a variety of things such as improperly inserting the key, or wearing out the mechanism over time. It's not unusual to see people mix their keys up with someone else's. This can result in mechanical damage.

Before calling a locksmith you might want to try a few things. First, make sure the battery is fully charged and there aren't any other electrical issues in the system. You should also examine the voltage of every component to see if they're providing enough power. After you've completed the above steps, you'll be able to begin troubleshooting.

The ignition switch is simple to replace. It's connected to the ignition cylinder, which is a round module that connects everything. You'll need a flathead and something long enough for you to press the pin in. You can use anything from a paintbrush to a kabob stick, but avoid anything that is hard as it could cause damage to the hole.

Remove any trim pieces that are covering the area around the switch once you're ready to go. After taking off the trim pieces, take off any screws that hold the switch in place. Then, carefully take it off. Depending on the model, you may need to disconnect any cables connected to it. If you have a manual for your vehicle it will explain exactly how to do this.

It is recommended to have the ignition switch replaced by a professional in the event that it isn't working. It's not easy to replace the ignition switch without disabling the steering column. This could result in an accidental airbag being deployed in the event that you don't do it correctly. For this reason, it is recommended to let your locksmith take care of this for you.

2. Check the Wire

The car ignition switch repair may not start if it is difficult to turn the key ignition replacement or if it isn't starting. This could be due a variety of components in the ignition system. Understanding how the ignition system works will help you determine the cause of the problem and make the necessary repairs.

The ignition switch is a low voltage multi-pole electrical switch that can be turned by the key. It has four positions that are off, accessory, run and "lock." If 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 bad or the ignition coil is bad, you have to conduct an electrical test with the help of a Voltmeter. When the ignition switch is running at a certain voltage, the voltmeter should read around 12.6, If the voltage drops below that, it means there's an open circuit somewhere within the system. This could be the battery, solenoid or the ignition coil.

Connect the electrical connector to the ignition switch so that no other components can interfere with your test. Then, set the voltmeter to the resistance or continuity mode and place one lead on one of the ignition Key won't Turn switch terminals. The other lead should be connected to the positive terminal of the battery. If the voltage meter reads "open" or doesn't register any voltage then it's time to replace the switch.

Use a new ignition key and a top-quality ignition cylinder when you replace the switch to ensure that your vehicle starts and runs correctly. When replacing the switch, make sure not to hit the pins of the ignition cylinder with your tools. Otherwise, they'll become stuck and the engine won't be able to run. In certain vehicles, you'll have to remove the steering column and gear selector to access the ignition cylinder. This can be a challenge and shouldn't be done unless you have an owner's guideline that says it's safe to do so. Otherwise serious damage to the steering column or shifting mechanism is possible.

3. Check the Cylinder

If you've gone through the wiring, battery, and ignition switch but you can't get your car start, it may be time to look at the cylinder. The cylinder is the part that holds the key. It is mechanically attached to the steering lock to ensure that burglars won't be able to drive the car ignition locked without it.

If your cylinder is beginning to wear out, you might notice that the key won't turn. The pins of the cylinder can get stuck as they adjust to the shape of your key. This could cause your car to not start. The cylinder might also be loose. Tapping it with a small tackhammer will help. Be careful not to mix the springs, and make sure your key is properly inserted.

Another sign that your cylinder is in trouble is when you have to move the key ignition replacement around and test it in various positions before it starts. This is a red flag and should be addressed immediately, as it can only get worse over time.

To check the cylinder, you'll need to disconnect your battery and remove the cover from your steering wheel until you can access the ignition module. The old ignition switch should be simple 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 ignition switch and cylinder, make sure to reconnect 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 it will stop the engine from running. It could be that your vehicle won't start at all or will run poorly. In either of these scenarios, it's likely that one of several things are preventing or impeding electrical current from crossing spark plug gaps, which ignites the fuel mixture and air in your engine.

Be sure to wear gloves and protective tools before you begin working with your spark plugs. Spark plugs are hot and could cause serious injuries when you touch them with bare skin.

If a spark plug goes bad, you might notice that the tip of the electrode's central portion has a slight brown or gray residue on it. It could also have a black layer on the opposite side of the electrode. These deposits, also known as corrosion, can prevent high-voltage electricity from jumping across the spark plug gap and sparking your engine.

If you suspect that your spark plugs might be the cause you can test them by having them remove them from their tube inside the ignition coil. This can be done by disconnection of the coil and the plug wire. Then, you will be required to follow the correct procedure for your vehicle to remove the components that surround the plugs. After you 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 tip of central electrode.

If you don't see any spark, you've identified the problem. The next step is to go back through the ignition system chain, testing each component until you find out what's hindering the spark plugs from doing their job. All systems will wear out and eventually break, and this is particularly relevant to ignition systems. That said, routine maintenance can reduce the wear and tear and avoid a major headache at the worst possible moment.