How to Fix Car Ignition Problems
The car won't begin to start until the ignition switch is sending an electrical signal to the starter motor. Over time normal wear and tear may cause the switch to malfunction.
With the help of specialized tools, you are able to remove the steering column trim and gain access to the ignition cylinder module. Consult your repair manual for instructions on how to do this in a safe manner.
1. Check the Switch
One of the most frequently encountered ignition issues is a malfunctioning switch. It controls when relays are activated and deactivated, acting as bridge. It is less likely to fail due to the fact that it does not channel full power from devices such as the starter. However it's still possible for the switch to become damaged or damaged or corroded.
One sign of a damaged switch is a difficulty turning the key. This can be caused by many things that include improperly inserting the key, or wearing out the mechanism over time. repair ignition lock cylinder 's also common for people to misplace their keys to their car with the keys of someone else, which can cause mechanical damage.
Before calling a locksmith you may try a few options. First, make sure that the battery is fully charged and there aren't any electrical issues within the system. You should also test the voltage of each component to determine if it's providing enough power. Once you've done these steps, you're ready to start troubleshooting.
Luckily the ignition switch is pretty simple to replace. It is connected to the ignition module, a round piece of equipment that connects everything. To replace it, you'll need a flathead screwdriver and something long enough to press the pin into. You can make use of anything from a paintbrush, to a kabob stick, but avoid anything brittle as it could break into the hole.
Remove any trimming pieces that overhang the switch when you're ready to work. Once you've done this, loosen and remove any screws that keep the switch in place and then gently remove it. Depending on the model, you may have to cut off any cables connected to it. If you have an instruction 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 if it doesn't work. It can be difficult to replace the ignition switch without removing the steering column. This could lead to an accidental airbag being deployed in the event that you don't do it correctly. It is recommended to let your local locksmith take care of this.
2. Verify the Wire
If you're unable to turn the key in the ignition or your car won't start, your issue could be due to any of the components in your car's ignition system. Understanding how the ignition system works will help you determine the cause of the problem and make the correct repairs.
The ignition switch is an electric switch with multiple poles that is operated by the key. It has four positions including off run, accessory, and "lock." When the switch is locked (which is typically shown by a red light), the ignition circuit is active and it is impossible to start your car.
You can use a voltmeter to quickly test the ignition switch and ignition coil. The voltmeter should read approximately 12.6 volts when the ignition switch is in the run position. 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 solenoid, the battery or even the ignition coil itself.
Connect the electrical connector to the ignition switch to ensure no other components interfere with your test. Set the voltmeter on the continuity or resistance modes and then place 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 then 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 is running and starts correctly. When replacing the switch, make sure not to strike 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 gear selector to get access to the ignition cylinder. This isn't easy and isn't recommended until you have a vehicle's owner's manual that states it's safe. Otherwise, serious damage to the steering column and shifting mechanism is likely.
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 to start It could be time to examine the cylinder. The cylinder is the part that holds the key and is mechanically connected to the steering lock to ensure that thieves can't drive the car without it.
You might observe that your key will not turn if the cylinder is worn out. The pins in the cylinder can get stuck as they adapt to the shape of your key. This could cause your car to not start. The cylinder could also be loose. A tap with the small tackhammer may help. Be careful not mixing the springs, and make sure your key is correctly placed.
If you need to jiggle and move the key around before it will start, this is another indication that your cylinder has become damaged. This is a sign of trouble and needs to be fixed immediately, as it will continue to get worse as time passes.
To test the cylinder, you must remove the cover for the steering wheel and disconnect the battery. The old ignition switch should be easy to remove, as should the metal ignition cylinder. If you don't have a spare switch, you may be able take your original ignition cylinder as well as switch to locksmiths for reuse so long they're in good shape. After replacing the ignition switch and cylinder, ensure that you reconnect the wiring and secure it before reattaching all covers and panels that you took off.
4. Check the Spark Plugs
The spark plug is your ignition system's final link. If it fails it will stop the engine from running. This can take the form of your car not starting at all, or it may start but then run poorly. In either case, the reason is likely to be one of a few things that prevent or impair the flow of electricity across the spark plug gap which causes your engine's air and fuel mixture to run.
Be sure to use protective tools and gloves before you begin working with your spark plugs. Spark plugs can get very hot and can cause serious injuries if handled with hands that are not protected.
You might notice a light gray or brown fleck on the edge of the electrode when a spark plug is bad. It could also have a black coating on the side of the electrode. These deposits or a build-up of fouling could hinder high-voltage electrical currents from jumping across the gap of your spark plug, igniting an engine.
If you suspect that your spark plugs could be the culprit You could test them by remove them from their tube inside the ignition coil. This can be accomplished by disconnecting the coil as well as the plug wire. Then, you'll have to follow the proper procedure for your vehicle to take off the components that are covering the plugs. After you have removed the plugs, place them on a metal surface that is grounded, and begin the engine. If they are good you will see a strong blue spark extending across the gap between the tip of the central electrode.
If you don't see a spark, you've identified the problem. The next step is to go through the ignition chain, testing each part until you find out what's hindering the spark plugs from doing their job. It's important to remember that all systems wear out and break down over time, and this is especially true of ignition systems. That said, routine maintenance can reduce the wear and tear and avoid a big problem at the worst time.