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How to Fix Car Ignition Switch Problems

There are a variety of reasons your car may run and start but the ignition won't turn on the spark plugs. Some are easy and cheap to fix, others require specialized tools and assistance from a mechanic.

The first step is to lubricate the socket of the key. You can apply graphite powder or silicon aerosol spray. Make sure that the ignition cylinder is clean and has no obstructions or loose springs.

Battery

If your car doesn't start, it could be due to the battery being dead. This is a common issue that can be solved with either charging your battery or the jump. If this doesn't solve the issue, it's likely that your ignition switch is not working properly. This component is responsible for transferring battery power to other electrical components like the starter motor and ignition coil. If the ignition switch is damaged, it won't allow current to be passed through, and the engine will not start.

The battery is the source of all electrical energy in your vehicle. It's a black, insulated box with positive (+) and negative (-) terminals that are on top. The terminals could be corroded and stop the battery from supplying power to the rest the vehicle. By disconnecting the battery you can make use of a wire bristle to get rid of any corrosion. You can also clean the terminals with baking soda as a solution.

It is also possible that your car's battery is at the end of its life and needs to be replaced. A new battery will provide the right voltage to the spark plugs in your vehicle which is necessary to ensure that your engine is running properly.

The ignition coil is responsible for changing low voltage from the battery into high voltage, which will then ignite your car's spark plugs to start the engine. If your ignition coil is not working properly it won't be able 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 determine whether it is turning.

It is possible to replace the starter motor too. If you hear a grinding noise when you turn on your ignition and key replacement, it is a sign that the bearings within the starter are starting to wear out. This could be a costly fix, so it's recommended to replace the starter motor early on if you notice any signs of wear and tear. The starter motor can be replaced by replacing some bolts and other parts.

Alternator

The alternator is an instrument that charges your battery when your engine is running. It also provides power to your car's electrical parts. If you suspect a problem with your alternator, you should first test the battery. This will allow you to determine if your alternator 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 lights as well as the radio. It also powers the windshield wipers, the power windows, electric steering, the heated seats, and the power windows. You can use a voltmeter check your battery and the alternator for proper voltage levels. If your battery is less than 6 volts, it should be replaced or charged as soon as possible. A dead or weak battery will also prevent the starter motor from turning the engine, and will require additional jumper cables to start your car.

Before you begin dismantling the Alternator, shut off the ignition and lock all doors. You should also disconnect the negative cable from the battery, and then put it away in a safe location and put on the safety gear. Refer to a repair manual specific to your vehicle to get instructions on how to remove the alternator, or any other components.

After you've removed the belt, if your car has one take off the warning light wire from the back of the alternator. This wire will connect directly to an alternator connector marked WL or IN. Certain vehicles have a separate relay to perform this function. If your warning light does not come on, it is likely that there is an issue that is not related to the one you are experiencing.

The alternator is a vital component of your vehicle, and it is important to examine it regularly for signs of trouble. While you could perform some of the tests yourself, it's best to bring your vehicle to Les Schwab for a complimentary inspection and expert advice. Our technicians will test for corrosion on your battery, battery posts (+ and +) and relays, fuses, as well as voltage output and cold starting amps and much more.

Starter Motor

The starter motor is an essential component of the ignition system. It is responsible for turning the engine so that it can suck into air, which is required to ignite the fuel. It is typical for the starter motor to be at fault when your car doesn't turn. There are many troubleshooting techniques that can be used to assist you in identifying and fixing the issue.

When you turn on your vehicle's ignition key, a switch within the starter turns on a pinion-gear that fits into grooves in the flywheel. The pinion gear turns the flywheel, which begins the engine. When you release the key, the pinion gear retracts, and disconnects from the flywheel to avoid damage.

There are many things that could cause problems in the starter motor, including an electrical failure in the internal windings, a mechanical problem (such as teeth no longer meshing with the flywheel or pinion gear) or a dead battery. A faulty starter motor can sound like a dead phone battery. It can make a clicking sound as it tries but cannot turn the engine.

If the starter motor doesn't work, one of the first things a mechanic should look at is the state of charge of the battery and its terminals. If the battery has corrosion or is low it must be charged or replaced.

Depending on how serious the problem is, the mechanic can test the solenoid by using a multimeter. The solenoid is a massive magnet switch, delivers an energy surge from the long battery cables to the starter. This switch basically connects the battery cable to windings within the starter that turn the electric motor, plus it pushes the rod, which turns an engaging fork that in turn pushes the gear pinion to automatically engage with the flywheel.

A jumper wire can be used to bypass the ignition. This is a temporary solution however it shouldn't be a recommendation unless you're able to do it correctly. You will need to carefully connect your jumper wires to the battery terminals, and then make sure that the switch is in the "Start position".

Ignition Switch

The ignition switch is the place where you insert your key into the car. This allows the system to enable electrical flow to your starter and then start the engine, but it's not immune from wear and tear like other parts of your car. The switch can also get stuck inside its slot or be locked. It is important to check it regularly for any issues so that you can act before the car doesn't start.

If your key is experiencing a struggle to turn, or gets stuck in the ignition, it might be locked. This is a common problem for a variety of vehicles and occurs due to a lack of lubrication. Using a graphite or silicone-based lubricant on the release pin can aid. Spray a small amount into the ignition and then try moving the key. If it's stuck then try using a piler or hacksaw blade.

An issue with the ignition may cause other issues. The anti-theft feature could stop working or the starter motor may not be able to turn on when you insert the key. This could also cause the other functions to stop functioning or lose power.

A failing ignition can also cause extra wear and tear on other components. If you own keys that have multiple items, or a large one, this could cause strain on the lost ignition key switch and accelerate wear on the internal components. Extreme temperature fluctuations may impact the materials and lubricants in the lost ignition key switch.

If you've purchased a replacement ignition switch, it's crucial to test it prior reassembling the steering column and other components. Make sure that the new ignition switch functions and that your engine starts smoothly. You should also double-check that the new ignition switch is compatible with your vehicle's make and model. It could be worth it to hire a dealership to install the ignition switch for you if you are not confident about your ability to install it. They can also test the replacement and install any other parts that require to be connected or replaced.