How to Fix Car Ignition Problems
A car won't start unless the ignition switch sends the electrical signal to the starter motor. Normal wear and tear over time may result in the switch not functioning properly.
Utilizing specially designed tools, you can remove the steering column trim and gain access to the ignition cylinder module. Consult your repair manual to learn how to do it correctly.
1. Check the Switch
A bad switch is one of the most frequent ignition problems. It regulates the time when relays are activated and deactivated by acting as bridge. Since it doesn't transmit the full power of devices like the starter, it's a lighter-duty component that is less likely to fail. The switch can still be damaged or damaged or corroded.
One sign of a bad switch is a difficulty turning the key. This could be due to various factors, including improperly inserting the key, or wearing out the mechanism over time. It's not uncommon to see people confuse their keys with those of others. This can cause mechanical damage.
Before contacting a locksmith, you may try a few options. First, you'll need to make sure the battery is charged and that there are no other electrical issues within the system. Also, you should check the voltage of each component to see if they're capable of supplying 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, a round module that holds everything together. You'll need to use a flathead and a piece of material long enough to press the pin in. You can employ anything from a paintbrush to a Kabob stick, but be careful of anything brittle as it could break into the hole.
Remove any trim pieces that cover the area around the switch when you are ready to go. After taking off the trim pieces, remove any screws holding the switch in position. Then carefully remove it. Depending on the model, you might also need to disconnect any wires that connect to it. If you have a manual for your vehicle and model, it will show you exactly how to do this.
It is best to have the ignition switch replaced by professionals in the event that it isn't working. It's not easy to replace the ignition switch without removing your steering column. This could lead to an unintentional airbag deployment if you do it incorrectly. It's best to allow your locksmith to handle this.
2. Check the Wire
Your car might not start if it is difficult to turn the key or it will not start. This could be due to a number components in the ignition system. It's important to understand how the ignition system works so that you can pinpoint problems and make the right repairs.
The ignition switch is a low voltage multi-pole electrical switch which is turned by the key. It has four positions that are off run, accessory, and "lock." When the switch is locked (which is typically marked by a red light) the ignition circuit is active and it is not possible to start your car.
You can use a voltmeter to quickly test the ignition switch or ignition coil. If the ignition switch is set to run, the voltmeter should show about 12.6, If the voltage falls below that level, it's a sign there's an open circuit somewhere within the system. This could be at the battery, the solenoid or at the ignition coil itself.
Disconnect the electrical connector so that it does not interfere with the test. Set the voltmeter to the resistance or continuity modes and connect one lead on one of the terminals of the ignition switch. The other lead should go 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.
If you're replacing the switch, be sure to use a new ignition cylinder as well as a high quality key cut to ensure that your vehicle will run and start correctly. Also, when you replace the ignition switch, be cautious not to touch the cylinder's pins on the ignition with your tools, or they'll get stuck and your engine won't be able to start. In some vehicles, you'll need remove the steering column and gear selector to get access to the ignition cylinder. This can be a challenge and isn't recommended until you have a vehicle's owner's manual that says it's safe. If you do not, it is possible to cause serious damage to your steering column and the shift mechanism.
3. Check the Cylinder
If you've sifted 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 component that holds the key and is mechanically connected to the steering lock so that thieves can't drive the car without it.
If your cylinder has started to wear out, you may notice that the key won't turn. Sometimes, G28CarKeys in the cylinder become stuck when they adjust to the shape of your key, which could cause your car not to start. Or, the cylinder might be shaky and a tap using the small hammer from a tack can assist in releasing it. Just be careful not to jumble the springs inside and ensure that your key is properly inserted before tapping.
Another indication that your cylinder is failing is when you need to move the key around and try multiple positions before it starts. This is a red flag and should be corrected immediately, since it will only get worse with time.
To examine the cylinder, you will need to remove the steering wheel cover and disconnect the battery. The old ignition switch should be simple to take off, as will the metal ignition cylinder. If you don't have an extra ignition switch lying around, it's 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 make sure to reconnect the wiring to secure it, then reattach all covers and panels that were removed.
4. Check the Spark Plugs
The spark plug is the last link in your ignition system chain. When it breaks, the engine can't run. This can take the form of your car not running at all, or it could start but run poorly. In either case, the cause is likely to be one of the things that hinder or prevent electricity from crossing the spark plug gap which causes your engine's air and fuel mixture.
Before you begin working on your spark plugs, be sure that you work on a level surface and employing protective gloves and tools to keep from getting zapped. Spark plugs can get very hot and could cause serious injuries if they are touched with bare hands.
You may notice a light gray or brown fleck on the top of the electrode if the spark plug is defective. It could also have a black coating on the sides of the electrode. These deposits, or corrosion, can prevent high-voltage electrical current from crossing the spark plug gap and igniting your engine.
If you suspect that your spark plugs could be to blame You can test them by taking the plugs from their tube in the ignition coil. This can be done by disconnecting the coil and the plug wire. After that, you'll be required to follow the correct procedure for your vehicle to remove the components that cover the plugs. Once you have removed the plugs you can place them on a metal surface that is grounded and then crank the engine. If they're working you will see a bright blue spark across the gap in the middle of the central electrode.
If you aren't seeing a spark, you've identified the problem. Next, you'll need to go backwards through the ignition chain and test each component until the spark plugs aren't functioning. It's important to remember that all systems wear out and break down over time and this is particularly the case with ignition systems. However, regular maintenance can reduce the wear and tear and avoid a major headache at the worst moment.