How to Fix Car Ignition Switch Problems
If your car starts and runs, but the ignition switch isn't able to turn over the spark plugs, there could be a variety of reasons for this. Some are easy and cheap to fix, others require special tools and assistance from a mechanic.
First, lubricate the key socket. You can use graphite powder or a silicon aerosol spray. Make sure that the ignition cylinder is clean and has no obstructions or loose springs.
Battery
It could be that your battery is dead if your car won't start. This is a common problem that can be solved with an extra jump or charging the battery. If this doesn't solve the issue, your ignition switch may be defective. This component is responsible for transferring power from the battery to other electrical components, such as the starter motor as well as the ignition coil. If the ignition switch is damaged it will not allow current to flow through, and the engine will not start.
The battery is responsible for all the electrical energy that is used in your car. It's a black box with positive (+) and negative (-) terminals that are on the top. The terminals may become damaged, preventing the battery from supplying electricity to the rest of the vehicle. By disconnecting the battery, you can make use of a wire bristle to remove any corrosion. You can also apply baking soda as a solution to help clean the terminals.
It's possible that your vehicle's battery is nearing the end of its lifespan and is in need of replacement. A new battery will supply the right voltage to the spark plugs in your vehicle, which is required for a properly working engine.
The ignition coil is responsible for turning low voltage from the battery to high voltage that can ignite the spark plugs of your car to start the engine. If the ignition coil is damaged, it will not be able to spark the plugs. Your engine won't start. The ignition coil can be inspected by examining the engine for a spark or turning the key to see if it turns over.
You may need to replace the starter motor, too. If you hear a grinding sound as you turn the ignition key it means that the starter bearings are deteriorating. This can be a costly fix, so it's recommended to replace the starter motor early on when you see any signs of wear and wear and tear. The starter motor can be replaced by replacing a few bolts and components.
Alternator
The alternator is a device that charges your battery when your engine is running. It also powers your car's electrical components. If you suspect that there is a problem with your alternator, you should test the battery first. This will enable you to determine if your alternator is draining the battery, or if your battery is old and needs replacement.
While the vehicle is idle the alternator is able to supply power to the dash light and radio. It also powers the windshield wipers, the power windows, the electric steering, the heated seats, and the power windows. You can use a voltmeter to examine your battery and alternator for proper voltage levels. If your battery's voltage is lower than 6 volts, then it needs to be replaced or charged as soon as possible. Batteries that are dead or not charged can also stop the starter from turning over the engine and may require additional jumper cables to start your car.
Before you begin dismantling the Alternator, shut off the ignition and lock all doors. Unplug the negative cable and secure it. Wear safety gear. Check out a specific vehicle repair manual to learn how to access the alternator and any other components you'll need to remove.
If your vehicle is equipped with a warning light wire, you can remove it from the side of the generator after taking off the belt. It will typically connect directly to the alternator's terminal that's labeled WL or IND. Certain vehicles, however, have a separate relay to perform this function. If your warning light does not appear, you must think about a different cause.
You should check regularly your alternator for any signs of malfunction. While you could perform some of the tests yourself, it's best to bring your vehicle into Les Schwab for a free inspection and expert advice. Our technicians will test for corrosion on your battery posts, battery (+ and -), fuses, relays as well as voltage output as well as cold starting amps and more.
Starter Motor
The starter motor is an essential element of the ignition system. It turns the engine so that air can be sucked in which will ignite the fuel. It is quite common that the starter motor will be at fault when your car doesn't turn. There are many methods of troubleshooting that can be used to assist you in identifying and fixing the issue.
When you turn the key on the ignition of your vehicle, a switch in the starter is activated by a pinion gear that fits into grooves on the flywheel. The pinion gear turns the flywheel, which in turn starts the engine. The pinion gear retracts when you remove the key, thereby preventing damage.
There are a myriad of things that could cause problems with the starter motor such as an electrical problem in the internal windings, a mechanical issue (such as teeth not meshing with the pinion gear or flywheel) or a dead battery. A faulty starter motor can sound like a dead cell phone battery. It can make a clunk sound as it tries to turn the engine.
The charge level and the battery's terminals will be examined by a mechanic when the starter motor fails to work. If the battery is corroded or is not functioning properly, it will need to charged or replaced.
Depending on the extent of the problem The mechanic can also test the starter solenoid with a multimeter. The solenoid is a massive magnetic switch that sends an electric current from the battery cables that are thick to the starter. This switch essentially connects the long battery cable to the wires inside the starter that actually turn the electric motor, plus it pushes the rod, which turns an engaging fork which in turn pushes the gear that pinions to automatically engage with the flywheel.
Another option is to disable the ignition switch by using an extension wire. This is a temporary option, and it isn't recommended unless you are able to do it right. You will need to carefully route your jumper wires to the battery terminals, and make sure that the switch is in the "Start position".
Ignition Switch
The ignition switch is where you insert your car key. The system uses this to start the engine and to send electric current to the starter. However it isn't immune to wear like other components of the car. The switch may also become stuck in its slot or even locked. You should check for problems regularly so you can act before the car stops working.
If your key seems to struggle to turn, or becomes stuck in the ignition, it may be locked. This issue is common in vehicles because of a lack lubrication. Using a silicone or graphite-based grease on the pin that releases the key can help. Spray a bit of it into the ignition, and then try moving the key. If you're stuck you can try using a hacksaw or piler blade.
A problem with the ignition could cause a host of other issues, too. The anti-theft function may stop working or the starter motor might not turn on when you insert the key. It could also cause other functions to cease functioning or cease to function at all.
A failing ignition can also cause additional wear and tear to other components. For instance, if have a heavy keychain or a variety of items on your keychain, it could put strain on the ignition switch when you put it in, and could increase the wear on its internal components. Extreme temperature fluctuations may affect the lubricants and materials used in the ignition switch.
Once you have a replacement ignition switch, it's important to test it prior to assembling the steering column and the other components. Make sure the replacement ignition switch is working and that your engine is running smoothly. You should also double-check that the new ignition switch is compatible with the vehicle's make and model. If ignition key replacement of your ability to install a new ignition switch you might consider hiring a service shop at a dealership to do it for you. They can also test and connect other parts or replace them.