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How to Fix Car Ignition Problems

The car won't begin to start until the ignition switch sends the electrical signal to the starter motor. Over time, normal wear and tear can cause the switch to fail.

Using specialized tools, you can take off your steering column trim and access the ignition cylinder module. Check out your repair manual to learn how to do it right.

1. Make sure to check the Switch

A bad switch is one of the most common ignition issues. It controls when relays are activated and deactivated, acting as a 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 corroded.

A defective switch can be recognized by a slow time turning the key. This can be caused by many factors such as the wrong way to insert a key, or deteriorating the mechanism over time. It is also common for people to mistake their keys to their car with someone else's, which can result in mechanical damage.

Before calling a locksmith, you may try a few options. First, make sure that the battery is fully charged and there are no electrical issues within the system. You should also examine the voltage of every component to see if they're supplying adequate power. After you've completed these steps, you're ready to begin troubleshooting.

The ignition switch is simple to replace. It is connected to the ignition module, which is a round component that connects everything. It's necessary to use an elongated flathead as well as something long enough for you to push the pin into. You can use anything from a paintbrush, to a kabob stick, but avoid anything that is brittle, as it can cause damage to the hole.

Remove any trimming pieces that cover the area around the switch when you're ready to get started. After you've removed 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 the cables that connect to it. If you have a manual for the vehicle you own and model, it will show you exactly how to do it.

If the ignition switch isn't functioning it's recommended to replace it by a professional. It's difficult to replace the ignition switch without disabling your steering column. This could result in an accidental airbag being deployed if you do it incorrectly. Therefore, it's often best to have your locksmith take care of this for you.

2. Check the Wire

If you're unable to turn the ignition key or your car isn't starting, your problem could be related to any number of components of your vehicle's ignition system. Understanding how the ignition system functions will help you identify problems and make the correct repairs.

The ignition key won't come out switch is an electrical switch that has multiple poles and is operated by a key. It has four positions, including "off", "accessory", "run" and the "lock". When the switch is in the lock position (which typically has the red indicator) the ignition circuit is in operation and it's impossible to start the engine.

You can use a voltmeter to quickly test the ignition switch or coil. If the ignition switch is running at a certain voltage, the voltmeter should read around 12.6, If the voltage falls below that level, it's a sign there's an open circuit somewhere in the system. This could be at the battery, the solenoid or even the ignition coil itself.

Connect the electrical connector to the ignition switch to ensure that there are no other components that could interfere with the test. Then set the voltmeter to the resistance or continuity mode and place one lead on one of the ignition switch's terminals. The other lead should go to the positive terminal on the battery. If the voltage gauge reads "open" or doesn't register any voltage, it's time to replace the switch.

Use a brand new ignition key and a top-quality ignition cylinder when you replace the switch to ensure that your vehicle runs and starts properly. When you replace the switch, ensure not to touch the pins of the cylinder's ignition with your tools. In the event of a collision, they'll get stuck and the engine will not run. In some vehicles, you'll need remove the steering column and gear selector to access the ignition cylinder. This isn't easy and should not be done unless you have an owner's guideline that says that it is safe to do so. Otherwise, serious damage to the steering column and shifting mechanism is possible.

3. Check the Cylinder

If you've tried the battery, the wiring, and the ignition switch, but you are still unable to get your car started It could be time to check the cylinder. It's the component that holds your key and is mechanically connected to the steering wheel lock so a would-be thief can't control the car without the key.

If your cylinder is beginning to wear out, you may find that the key doesn't turn. Sometimes, the pins inside the cylinder are stuck as they adapt to the shape of your key, which may cause your car not to start. Or, the cylinder might be shaky and a tap using the tack hammer may help to free it. Be sure not to mix up the springs and ensure that your key is properly inserted.

If you have to move the key before it will begin, this is another indication that your cylinder is been damaged. This is a negative sign and must be fixed immediately because it will worsen over time.

To examine the cylinder you'll need to disconnect your battery and take off the cover from your steering wheel until you are able to access the ignition module. Then, you'll be able to pull out the old ignition switch and the metal ignition cylinder. If you don't have an additional ignition switch around, it's possible that you can take your original ignition barrel replacement near me switch and cylinder to a locksmith to reuse them as long as they're in good condition. After replacing the switch and cylinder be sure to reconnect the wiring harness, secure it in place and reattach any covers or panels that you have removed.

4. Check the Spark Plugs

The spark plug is your ignition system's final link. The engine will not start when the spark plug is broken. This could take the form of your car not starting at all, or may start but then run poorly. In either case, it is likely that one of several things are preventing or impeding electricity from jumping across spark plug gaps, which then ignites the fuel mixture and air inside your engine.

Be sure to use protective tools and gloves before you begin working with your spark plugs. Spark plugs can be very hot and cause serious injuries if handled with hands that are not protected.

When a spark plug goes bad, you may observe that the edge of the central electrode is covered with some light brown or gray residue on it. The electrode may also have a dark coating. These deposits, also known as corrosion, can prevent high-voltage electrical current from crossing the spark plug gap and sparking your engine.

If you believe that your spark plugs may be to blame, you can test them by removing them from their tube inside the ignition coil. This can be done by disconnecting the coil and the plug wire. After that, you'll have to follow the proper procedure for your car to remove the components that cover 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 are good, you should see a bright blue spark across the gap at the tip of the central electrode.

If you aren't seeing a spark, you have found the issue. The next step is to go back through the ignition chain, testing each element until you can determine what is stopping the spark plugs from doing their job. All systems will get older and eventually break, and this is particularly true for ignition systems. Regular maintenance can reduce the time it takes to repair and avoid major problems at the worst time.