How to Fix Car Ignition Switch Problems
There are many reasons why your car might run and start but the ignition won't turn on the spark plugs. Some are easy and inexpensive to repair, while others require specialized equipment and help of an expert mechanic.
First, lubricate the socket of the key. You can apply graphite powder or silicon spray. Also, make sure the ignition cylinder is free of obstructions and loose springs.
Battery
It could be that your battery is dead when your car isn't starting. This is a common issue that can be solved by an extra jump or charging the battery. If this doesn't solve the issue, your ignition switch may be bad. This component carries battery power to other electrical components, such as the starter motor and ignition coil. If the ignition switch is defective it will not allow current to flow through it and the engine won't begin.
The battery is the source of all electrical energy in your vehicle. It's a black, insulated box with positive (+) and negative (-) terminals on top. The terminals can be corroded and stop the battery from supplying power to the rest of the vehicle. Clean the battery's terminals by disconnection of the battery and using a wire brush to remove any corrosion. G28 Car Keys can also apply a baking soda solution to clean the terminals.
Your car battery may also be at the end of its life and will require replacement. A new battery will provide the proper voltage to your vehicle's spark plugs. This is essential to ensure that your engine is running properly.
The ignition coil converts the battery's low voltage into high voltage that causes the spark plugs in your car and then start the engine. If the ignition coil is damaged and is not capable of sparking the plugs, and your engine won't start. The ignition coil can be tested by checking the engine for sparks or turning the key to see whether it spins.
You may need to replace the starter motor too. If you hear a grinding sound when you turn on your ignition it is a sign that the starter bearings are worn out. This could be a costly fix, so it's best to replace the motor of your starter early in the event that you notice signs of wear and tear. It's an easy task that requires replacing some bolts and parts.
Alternator
The alternator charges your battery and powers the electrical components of your car when the engine is running. Check the battery first if you suspect your alternator is malfunctioning. This will allow you to determine whether your alternator is causing the battery to run out or whether your battery is simply old and needs to be replaced.
When the vehicle is idle the alternator supplies power to the dash light and radio. It also provides power to the windshield wipers, the power windows, electric steering, heated seats, and the power windows. You can use a voltage meter to examine your battery and alternator to determine the proper voltage levels. If your battery is less than 6 volts, then it needs to be replaced or charged as soon as possible. A low or dead battery will also prevent the starter motor from turning the engine over and will require more jumper cables to start your car.
Before you begin removing the alternator, make sure the ignition is off and all doors are locked. Remove the negative cable and store it safely. Wear safety equipment. Refer to a vehicle specific repair manual for guidance on how to gain access to the alternator and any other components you'll need to take off.
If your vehicle has a warning light wire, you can disconnect it from the back of the generator following taking off the belt. It will typically connect directly to the alternator's terminal that is marked as WL or IND. Some vehicles have a separate relay that can perform this function. If your warning light does not come on, you should be able to identify a different issue.
The alternator is a crucial component in your vehicle, and you should inspect it regularly for signs of problems. You can perform certain of these tests yourself, but it's best to bring your car to Les Schwab so they can inspect it and provide you with expert advice. Our technicians will test for corrosion on your battery posts, battery (+ and -) fuse, relays, and fuses and voltage output, cold starting amps, and many more.
Starter Motor
The starter motor is an important element of the ignition system. It turns the engine over so that air can be sucked in, which is needed to ignite the fuel. It is common that the starter motor will be at fault when your car won't turn over. There are many troubleshooting techniques that can aid in diagnosing and fixing the issue.
When you turn the key in the ignition of your vehicle, a switch on the starter engages with an pinion gear that is fitted into grooves on the flywheel. The pinion gear is then turned the flywheel, which begins the engine. The gear retracts once you release the key to prevent damage.
The starter motor may be affected by a variety of things, such as a mechanical problem (such as teeth not lining up on the flywheel) or a dead cell. A malfunctioning starter motor may sound like a dead phone battery. It will make a clicking sound as it attempts to turn the engine over.
The charge level and the battery's terminals will be examined by a mechanic if the starter motor doesn't work. If the battery is corroded or is not functioning properly it needs to be charged or replaced.
Depending on how serious the issue is, the mechanic can test the solenoid by using a multimeter. The solenoid is a massive magnet switch, delivers a surge of power from the thick batteries cables to the starter. This switch essentially connects the long battery cable to the wires inside the starter, which turn the electric motor, plus it pushes an actuator rod that turns on an engaging fork that in turn pushes the pinion gear to automatically engage with the flywheel.
Another option is to bypass the ignition switch using an extension wire. This is an interim solution, and you should not attempt it unless you are confident about how to do it. You will need to carefully connect 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 key into the car. This will allow electrical flow to the starter and start up the engine, but it isn't immune to wear and tear as other parts of your car. The switch could also become stuck inside its slot or be locked. You should check for problems frequently to be able to act before the car won't start.
It could be locked if your key is difficult to turn or gets stuck in the ignition. This is a typical issue for a variety of vehicles and occurs due to a lack of lubrication. Using some graphite or silicone-based grease on the pin that releases the key could help. Spray some lubricant on the ignition, and then move the key. If it's stuck then try using a piler or hacksaw blade.
An ignition problem could cause a host of other issues too. The anti-theft device may not function or the starter motor may not start when you plug the key in. This could also cause the secondary functions to stop working or cease to function.
A malfunctioning ignition could cause extra wear and tear on other parts. If you have a keychain with multiple items, or a bulky one, it can put strain on the ignition switch, which can cause wear on the internal components. Extreme temperature fluctuations can impact the materials and lubricants in the ignition switch.
It's important to test the new ignition switch prior to reassembling other parts and the steering column. Make sure that the new ignition switch works and that the engine starts smoothly. Also, make sure the new ignition switch is compatible with your vehicle's make and model. It may be worthwhile to get a dealership to install the ignition switch for you, if you aren't confident in your ability to install it. They can also test and connect any other components or even replace them.