How to Fix Car Ignition Problems

The car won't start until the ignition lock repair switch transmits an electrical signal to the starter motor. Over time, normal wear and tear could cause the switch to malfunction.

You can remove the steering column trim with specialized tools to access the ignition cylinder module. Check your repair manual for instructions on how to do this correctly.

1. Make sure you check the Switch

One of the most common ignition lock repair issues is a defective switch. It acts as a bridge between two contacts, regulating the time when relays are activated and deactivated. Because it doesn't harness the full power of devices like the starter, it's a less powerful component that's less likely to fail. However, it's still possible for the switch to become damaged or corroded.

One sign of a damaged switch is the difficulty in turning the key. This can be caused by various reasons such as the wrong way to insert a key, or deteriorating the mechanism over time. It's also common for people to mistake their keys to their car with another's, which could lead to mechanical damage.

If the switch isn't functioning there are some things you can try before calling a locksmith. First, you'll need to make sure the battery is fully charged and that there are no other electrical issues within the system. Also, you should examine the voltage of every component to determine if it's supplying adequate power. After you've completed these steps, you're ready to begin troubleshooting.

Luckily, the ignition switch is pretty simple to replace. It's connected to the ignition cylinder, a round module that connects everything. You'll need to use an elongated flathead as well as something that is long enough to press the pin in. You can make use of anything from a paintbrush to Kabob stick, but you should avoid anything that is hard as it could cause damage to the hole.

If you're ready for the work, you'll need to take away any trim pieces that cover the area around the ignition switch. After you've removed the trim pieces remove any screws holding the switch in position. Then carefully pull it out. Depending on the model, you may be required to disconnect any wires connected to it. If you have a manual for the vehicle you own it will explain exactly how to do it.

It's best to get the ignition switch replaced by an expert in the event that it isn't working. It's not easy to replace the ignition switch, without disabling your steering column. This could lead to an unintentional airbag being deployed when you don't do it correctly. It's best to leave it to your local locksmith to handle this.

2. Check the Wiring

Your car might not start if you cannot turn the key or if it will not start. This could be due a number components in the ignition system. It is important to know how the ignition system functions to identify problems and make the right repairs.

The ignition switch is a low-voltage multi-pole electrical switch that can be operated by a key. It has four positions, which include "off", "accessory", "run" and the "lock". If the switch is in the lock position (which usually has the red indicator) the ignition circuit is active and it is not possible to start the engine.

You can use a voltmeter quickly test the ignition switch and ignition coil. The voltmeter should read approximately 12.6 volts when the ignition switch is in the running position. If the voltage is below that, there is an open circuit somewhere within the system. This could be at the battery, the solenoid or the ignition coil itself.

Disconnect the electrical connector so that it doesn't interfere with the test. Then you should set the voltmeter in the resistance or continuity mode and put one lead on one of the ignition switch terminals. 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 then it's time to replace the switch.

Use a new ignition key and high-quality ignition cylinder when replacing the switch to ensure your vehicle runs and starts properly. When replacing the switch, ensure not to strike the pins of the ignition cylinder with your tools. In the event of a collision, they'll become stuck and the engine will not run. In certain vehicles, you'll have to remove the steering column and gear selector to get access to the ignition cylinder. This isn't easy and isn't recommended until you have an owner’s guideline that states it's safe. If you do not, it is possible to cause severe damage to your steering column and the shift mechanism.

3. Check the Cylinder

If you've tried the battery, the wiring and the ignition switch, but still cannot get your car to start it could be time to examine the cylinder. It's the part that holds your key and is connected to the steering wheel lock so that a potential thief cannot control the car without a key.

If your cylinder has started to wear out, you may notice that the key won't turn. Sometimes, the pins within the cylinder become stuck when they adjust to the shape of your key, which can cause your car ignition barrel replacement 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 properly installed prior to tapping.

Another sign that your cylinder is failing is when you need to move the key around and test it in various positions before it gets started. This is a negative sign and should be corrected right away as it will only get worse with time.

To check the cylinder you must remove the cover on the steering wheel and disconnect the battery. You'll then be able to pull out the old ignition switch and the metal ignition cylinder. If you don't have a spare ignition switch lying around, it's likely possible to take your original ignition switch and the cylinder to a locksmith and reuse them as long as they are in good condition. After replacing the ignition switch and cylinder ensure that you reconnect the wiring, secure it and reattach all covers and panels that you took off.

4. Check the Spark Plugs

The spark plug is the final link in your ignition system chain. The engine won't run in the event that the spark plug fails. It can be that your vehicle won't start at all, or it will run badly. In either case, it is likely that one of several things are preventing or impeding electrical current from crossing spark plug gaps, which ignites the fuel mixture and air within your engine.

Be sure to use gloves and protective tools before working with your spark plugs. Spark plugs can be hot and cause serious injuries when you touch them with your naked skin.

There may be a slight brown or gray residue on the tip of the electrode when the spark plug is damaged. The electrode could also be covered with a dark coating. These deposits or fouling can hinder high-voltage electrical currents from jumping across the gap of your spark plug and igniting an engine.

If you suspect your spark plugs could 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 are good you should be able to see a strong blue spark across the gap at the tip of the central electrode.

If you don't see a spark, you've found the issue. The next step is to go back through the ignition chain, testing each part until you find out what's hindering the spark plugs from doing their job. All systems wear out and eventually break This is especially applicable to ignition systems. Regular maintenance can reduce the time it takes to repair and avoid major problems in the worst case.