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How to Fix Car Ignition Switch Problems If your car starts and runs, but the ignition switch won't turn on the spark plugs, there could be a variety of reasons. Some are simple and cheap to fix, while others require specialized equipment and assistance of mechanics. Lubricate the socket before you use it. You can apply graphite powder or silicon spray. Also, ensure that the ignition cylinder is free of obstructions and loose springs. Battery It could be that your battery is dying if your car won't start. This is a common problem that can be fixed with an extra jump or charging the battery. If this doesn't fix the issue your ignition switch could be bad. This component is responsible for transferring power from the battery to other electrical components such as the starter motor and ignition coil. If the ignition switch is defective it will not allow current to be passed through, and the engine will not start. The battery is the source of 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 be corroded and stop the battery from providing electricity to the rest of the vehicle. By disconnecting the battery, you can use a wire bristle to remove any corrosion. You can also use baking soda as a solution to clean the terminals. It's possible that your vehicle's battery has just reached the end of its lifespan and is in need of replacement. A new battery will provide the correct voltage to your vehicle's spark plugs which is necessary to ensure that your engine is running properly. The ignition coil is responsible for turning low voltage from the battery to 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 to ignite the plugs. Your engine won't start. You can test the ignition coil by looking for a spark inside the engine or turning the key to see if the engine turns over. It is also possible to replace your starter motor. If you hear a grinding noise when you turn on your ignition, it's a sign that the bearings within the starter are starting to wear out. It could be a costly repair, so it is recommended to replace your starter motor immediately if you begin to notice signs of wear. Changing the starter motor is an easy task that involves replacing some bolts and parts. 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 issue with your alternator, you must first test the battery. This will enable you to determine if your alternator draining the battery, or if your battery is old and in need of replacement. When the vehicle is idle, the alternator provides power to the dash light and radio. It also powers the windshield wipers, the power windows, the electric steering, heated seats, and the power windows. You can use a voltage meter to check your battery and the alternator for proper voltage levels. If your battery is less than 6 volts, it must be replaced or charged right away. A dead or low-volt battery will also prevent the starter motor from turning the engine and will require more jumper cables to start your car. Before you start dismantling the alternator, ensure that the ignition is turned off and that all doors are locked. Disconnect the negative cable and store it safely. Wear safety gear. Refer to a repair manual specific to your vehicle for directions on how to remove the alternator, or any other component. If your car has a warning light wire, you can remove it from the side of the generator after taking off the belt. The wire will be connected directly to an alternator terminal identified WL or IN. Some vehicles, however have a separate relay to perform this purpose. If your warning light doesn't come on, it is likely to be an issue with your vehicle. You should regularly inspect your alternator for any indications of a malfunction. ignition key won't come out can perform certain of these tests by yourself, however it is best to bring your car into Les Schwab so that they can look it over and give you expert advice. Our certified technicians will test your battery posts, battery (the terminals marked + and +) for corrosion relays, fuses as well as voltage output, cold cranking amps and more to determine what the problem is. Starter Motor The starter motor is a crucial component of the ignition system. It is responsible for turning over the engine so that it can take in air, which is essential to ignite the fuel. When your car won't start it's usually caused by a problem with the starter motor. There are a few troubleshooting methods to help you determine the issue and resolve it. When you turn the key on your vehicle's ignition the switch inside the starter is activated by the pinion gear, which fits into grooves on the flywheel. The pinion gear turns the flywheel that begins the engine. When you release the key the pinion gear retracts, and disconnects from the flywheel to prevent damage. The starter motor may be affected by a range of things, such as mechanical issues (such as teeth that don't mesh on the flywheel) or a dead cell. A malfunctioning starter motor may sound like a dead cell phone battery. It will make a clicking sound as it tries but cannot turn the engine around. If the starter motor isn't functioning One of the first things a mechanic would check is the state of charge of the battery and its terminals. If the battery has corrosion or is depleted it needs to be charged 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 massive magnet switch, transmits a surge of power from the battery cables to the starter. This switch basically connects the battery cable to the windings inside the starter, which make the electric motor turn and also pushes a rod that actuates an engaging fork that is then pushed by the gear pinion to automatically engage with the flywheel. A jumper wire can be used to disable the ignition. This is a temporary option, and it isn't recommended unless you are able to do it correctly. You'll need to carefully route the jumper wire through the battery terminals, and ensure that the switch is in the “Start” position. Ignition Switch The ignition switch is the place where you insert your car keys. This will enable electrical flow to your starter and to start the engine, but it isn't immune to wear and tear like other car components. The switch may also become stuck in its slot or even locked. You should check for problems regularly to identify the problem before your car doesn't start. If your key is a struggle to turn or gets stuck in the ignition, it could be locked. This problem is common in vehicles because of a lack oil lubrication. You can make use of a graphite or silicone-based lubricant to lubricate the release pin. Spray a bit of it into the ignition and then try moving the key. If it's stuck you can try using a piler or hacksaw blade. An ignition problem can lead to a number of other issues as well. The anti-theft feature could not function or the starter motor could not start when you insert the key. This could also cause the auxiliary functions to stop working or cease to function. A malfunctioning ignition switch could also leave you with lots of wear and tear on other components. For instance, if you have a heavy keychain or a variety of items on your keychain it can strain the ignition switch when you plug it in, and could increase the wear on its internal components. Extreme temperature fluctuations may affect the materials and lubricants used in the ignition switch. If you've got a new ignition switch, it's important to test it prior reassembling the steering column and the other components. Make sure the replacement ignition switch functions and that your engine is running smoothly. Also, make sure the new ignition switch is compatible with your vehicle's make and model. If you're not sure of your ability to install an ignition switch that is new it could be worth hiring a service shop at a dealership to do it for you. They can also test and connect other parts or even replace them.