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How to Fix Car Ignition Switch Problems
If your car starts and runs, but the ignition switch won't turn over the spark plugs, there may be a variety of causes. Some are simple and cheap to fix, while others require special equipment and the help of a mechanic.
Lubricate the key socket first. You can use graphite powder or a silicon aerosol spray. Also, ensure that the ignition cylinder is free of obstructions and springs that are loose.
Battery
It could be that your battery is dead when your car isn't starting. This is a common issue which can be fixed with charging the battery or making the jump. If this does not solve the issue, it's possible that the ignition switch is not working properly. This component supplies battery power to the other electrical components, including the starter motor and the ignition coil. If the ignition switch is defective, it won't allow current to flow through it and the engine won't begin.
The battery is the source of all the electrical energy that is used in your vehicle. The battery is a black box that has positive (+) and negatively (-) terminals on the top. The terminals can be corrosion-prone, which can stop the battery from supplying power to the rest of 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 using baking soda as a solution.
It is also possible that your car battery is at the end of its lifespan and requires replacement. A new battery will supply the correct voltage to your vehicle’s spark plugs. This is crucial for a functioning engine.
The ignition coil converts low voltage from your battery into high voltage, which causes it to ignite the spark plugs of your car and then start the engine. If the ignition coil is faulty and is not in a position to ignite the plugs and your engine won't start. You can test the ignition coil by looking for a spark in the engine or turning the key to see whether the engine is turning.
It is also possible to replace the starter motor. If you hear a grating sound when you turn the key in your ignition, it is a sign that the bearings within the starter are starting to wear out. It is a costly repair, so it is recommended to replace your starter motor immediately if you begin to notice signs of wear. The replacement of the starter motor is an easy task that requires replacing some bolts and parts.
Alternator
The alternator is an instrument that charges your battery while your engine is running. It also is the power source for your car's electrical components. If you suspect that there is a problem with your alternator, you should test the battery first. This will help you determine whether your alternator is causing the battery to deplete or if the battery is just old and should be replaced.
Your car's alternator also supplies power for the dashboard lights, windshield wipers, electric steering, power windows, heated seats and your radio even when the vehicle is idle. A voltmeter can be used to determine the voltage of your alternator and battery. If your battery's voltage is lower than 6 volts, it must be charged immediately or replaced. A low or dead batteries will also prevent the starter from turning the engine over, and will require additional jumper cables in order to start your vehicle.
Before you begin removing the alternator, switch off the ignition and lock all doors. Additional Info and store it in a safe place. Wear safety equipment. Consult a vehicle's specific repair manual for guidance on how to access the alternator, as well as any other components you'll need to take off.
If your car has a warning light wire, you can disconnect it from the side of the generator after removing the belt. This will usually connect directly to an alternator's terminal that is marked WL or IND. Certain vehicles have a separate relay to perform this function. If the warning light doesn't blink, you may suspect a different problem.
You should regularly inspect your alternator for signs of malfunction. You can do certain of these tests yourself, but it is recommended to bring your vehicle to Les Schwab so that they can look it over and provide you with expert advice. Our trained technicians can test your battery, battery posts (the terminals marked + and -) for corrosion, fuses, relays, voltage output as well as cold cranking amps and more to determine what the problem is.
Starter Motor
The starter motor is a crucial element of the ignition system. It turns the engine to allow air to be sucked into it, which is needed to ignite the fuel. It is typical for the starter motor to be the cause when your car doesn't turn. There are a number of troubleshooting methods to help you determine the issue and fix it.
When you turn the key on your vehicle's ignition, a switch on the starter engages with a pinion gear that fits into grooves on the flywheel. The pinion gear turns the flywheel, which starts the engine. The pinion gear retracts when you release the key to prevent damage.
The starter motor could be affected by a variety of factors, including mechanical issues (such as teeth that don't mesh on the flywheel) or dead cells. A defective starter motor will sound like a dead battery; it'll make a clicking noise as it tries to turn the engine, but it won't.
If the starter motor isn't functioning, one of the first things a mechanic should examine is the condition of charge on the battery and its terminals. If the battery is depleted or has rust on its terminals, it will require charging or replaced.
Depending on the extent of the problem, the mechanic could test the solenoid on the starter using a multimeter. The solenoid is a huge magnet switch, delivers an electric current from the battery cables to the starter. This switch essentially connects the battery cable to the windings inside the starter, which turn the electric motor, plus it pushes the rod, which turns an engaging fork that will then push the gear that pinions to automatically engage with the flywheel.
Another option is to bypass the ignition switch using a jumper wire. This is a temporary fix and you shouldn't try it unless confident about how to do it. You'll need to be careful about routing the jumper wire to the battery terminals and be sure the switch is set to the "Start" position.
Ignition Switch
The ignition switch is the place where you insert your car key. This allows the system to allow electrical flow to the starter and start up the engine, but it isn't immune to wear and tear as other car components. The switch may also become stuck in its slot or even locked. You should be looking for issues regularly so you can act before the car stops working.
If your key is experiencing a struggle to turn, or becomes stuck in the ignition, it could be locked. This issue occurs in many vehicles due to a lack grease. Using a graphite or silicone-based oil on the release pin can aid. Spray a small amount into the ignition and then try moving the key. If it's still stuck, use a piler or hacksaw blade to assist in moving it.
An issue with the ignition can also lead to other problems. The anti-theft device may not function or the starter motor may not crank when you put in the key. It could also cause other functions to stop working or not work at all.
A failing ignition can also cause extra wear and tear on other parts. If you own a keychain with multiple items, or a bulky one, it can cause strain on the ignition switch and increase wear on the internal components. Extreme temperature changes can also impact the materials and lubricants used in the ignition switch.
It is important to test the replacement ignition switch prior to assembling the other components and the steering column. Make sure that the switch works and that your engine starts without any issues. Also, make sure the new ignition switch is compatible with your vehicle's make and model. It might be worth it to have a dealership install the ignition switch for you if you aren't confident in your ability to install it. They can also test the replacement and install any other parts that need to be connected or replaced.
