How to Fix Car Ignition Problems

The car won't start until the switch sends an electrical signal to the starter. Normal wear and tear over time may cause the switch to malfunction.

With the help of specialized tools, you can take off your steering column trim and access 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 frequently encountered ignition issues is a malfunctioning switch. It acts as a bridge between two contacts, and controls the time when relays are activated and deactivated. It is more likely to fail since it does a new ignition switch require a new key not channel full power from devices such as the starter. However, it's still possible for the switch to get damaged or corroded.

A malfunctioning switch can be identified by a difficulty turning the key. This could be due to many things that include incorrectly inserting the key or deteriorating the mechanism over time. It is also common for people to misplace their keys to their car with another's, which could cause mechanical damage.

Before calling a locksmith you may try a few options. First, you'll need to make sure that the battery is fully charged and that there are no other electrical issues within the system. It is also important to examine the voltage of every component to determine if they're capable of supplying enough power. Once you've completed these steps, you're ready to begin troubleshooting.

The ignition switch is easy to replace. It's connected to the ignition cylinder, a round module that holds everything together. It's necessary to use an elongated flathead as well as something long enough to press the pin in. You can make use of anything from a paintbrush, to a Kabob stick, but be careful of anything that is hard as it could break into the hole.

When you're ready to do the work, you'll have to take away any trim pieces covering the area around the ignition switch. After removing the trim pieces, remove any screws holding the switch in position. Then, gently remove it. Depending on the model, you might also have to unplug any wires that connect to it. If you have a manual for your vehicle it will explain exactly how to do it.

If the ignition switch isn't working it is recommended to have it replaced by an expert. It is possible to replace it by disabling the steering column, which could result in unintentional airbag deployment if done improperly. It is recommended to leave it to your local locksmith to take care of this.

2. Check the Wiring

If you can't turn the key in the ignition or your car won't start, your issue could be due to any of the 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 switch is a low voltage multi-pole electrical switch that is turned by the key. It has four positions, including "off", "accessory", "run" and the "lock". When the switch is locked (which is usually marked by an red light) the ignition circuit is in operation and it is impossible to start your car.

You can use a voltage meter to quickly test the ignition switch or coil. 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 then there is an open circuit somewhere within the system. This could be a battery, solenoid, or the ignition coil.

Connect the electrical connector to ensure that it does not interfere with the test. Then set the voltmeter to the continuity or resistance mode and put 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 voltmeter reads "open" or doesn't show any voltage, it's time to replace the switch.

If you're changing the switch, make sure to use a brand new ignition cylinder and a good quality key cut to ensure that your car will run and start correctly. When replacing the switch, ensure not to hit the pins of the ignition cylinder with your tools. Otherwise, they will get stuck and the engine won't run. In certain vehicles, you'll need remove the steering column and the gear selector to access the ignition cylinder. This isn't easy and should not be done unless you have an owner's manual that indicates that it is safe to do so. If you do not you could cause serious damage to your steering column and shift mechanism.

3. Check the Cylinder

If you have tried the battery, the wiring and the ignition switch but you are still unable to start your car it could be time to examine the cylinder. It's the part that holds your key and is mechanically connected to the lock on the steering wheel to ensure that thieves can't drive the car without keys.

If your cylinder is beginning to wear out, you could find that the key doesn't turn. The pins in the cylinder can get stuck as they adjust to your key's shape. This can cause your vehicle to not start. The cylinder may also be loose. A tap with the tackhammer can help. Be sure not to mix the springs, and ensure that the key is properly inserted.

Another sign that your cylinder is going bad is when you have to jiggle the key and try different positions before it starts. This is a red flag and needs to be fixed immediately, since it will only get worse over time.

To check the cylinder you will need to remove the steering wheel cover and disconnect the battery. Then, you'll be able pull out the old ignition switch and the metal ignition cylinder. If you don't have an extra ignition switch lying around, it's likely that you could take your original ignition switch and the cylinder to a locksmith in order to reuse them as long as they're in good condition. After replacing the switch and cylinder, make sure you connect the wiring harness, secure it in place and then reattach any covers or panels you've removed.

4. Check the Spark Plugs

The spark plug is your ignition system's final link. The engine cannot start in the event that the spark plug fails. It can be that your car key ignition replacement near me will not start at all or will run badly. In either of these scenarios, it's likely that one of several factors are hindering or blocking electrical current from crossing spark plug gaps, which ignites the mixture of fuel and air in your engine.

Before you begin working on your spark plugs, be sure that you work on a safe surface, employing protective gloves and tools to prevent getting hit with. Spark plugs are hot and could cause serious injury when touched with bare skin.

There may be a slight gray or brown fleck on the top of the electrode if the spark plug is damaged. It could also have a black layer on the opposite side of the electrode. These deposits or fouling can stop high-voltage electrical current from jumping across the gap of your spark plug, igniting an engine.

If you believe that your spark plugs are to blame, you can test them by removing them 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 car to remove the components that cover the spark plugs. After you have removed the plugs, place them on a surface that is grounded. Then begin the engine. If they're working, you should see a strong blue spark extending across the gap in the middle of the central electrode.

If you don't detect a spark, you've discovered the problem. Next, you'll need to go backwards through the ignition chain and test each component until the spark plugs aren't working. It's important to remember that all systems wear out and break over time, and this is especially the case with ignition systems. Routine maintenance can help to reduce the time it takes to repair and prevent major problems in the worst case.