How to Repair an Ignition Lock Cylinder
If your car key will not turn, it's time change the ignition lock cylinder. In contrast to the switch, which is the electrical part of the ignition system, which sends energy to the engine of your car The lock cylinder is the mechanical tumbler that your key can slide into.
Over time over time, these "wafer" tumblers will wear out or break. WD-40 and graphite are able to temporarily solve the problem however, replacing the tumblers is the only way to fix it.
The steering column can be removed
Modern cars do not have steering column locks. They make use of a key to start the vehicle by pressing and rotating the switch on the dash panel. This newer system is much simpler and more effective than the old lock cylinder method. However, there are older cars that still use the traditional ignition lock cylinder. When this part fails, you might require replacing it in order to restart the vehicle. This is a task that should be left to professionals.
Remove the trim panels that cover the lower and upper column of the steering with a screwdriver. This will allow access to the area around the steering column.
You will see an Allen head bolt on the side of the steering wheel that is closest to the driver. This bolt holds the unit for the wiper/signal unit in position. Remove the bolt and set it aside. Based on the year of your car, it could have 3 or 4 small flat head screws that secure the plastic cover that covers the turn signal switch in place. Remove these screws and set them aside.
In order to get at the lock cylinder, you'll have to take off the signal/wiper assembly. This requires the use of a specific tool or you can ghetto do it with the help of a piece of metal, such as a cold chisel. Locksmiths are also capable of using the shear bolt removal kit.
If you are unable to insert the key into the ignition switch, the lock cylinder may be stuck. You can either contact an locksmith or insert the key into the ignition switch, then move it to the ACC to press the lock cylinder's pin.
A locksmith can use a shear tool to take off the lock cylinder or they can make use of a torch to cut the pin, then shave the pin to take it off. They can re-key your ignition cylinder to ensure it matches the keys you already have. This will save you money on the purchase of a new ignition.
Replace the Ignition Cylinder
The ignition cylinder is a cylindrical mechanical component which houses and locks the key to your vehicle. The cylinder "reads" the anti-theft code and fits your key to turn on or off your car. As time passes the cylinder will wear out. It could also be bent or broken. In this instance you'll need replace the cylinder to start your car.

A damaged or worn-out cylinder may cause issues when turning the key, or causing the ignition switch to not move into the ACC position or RUN, or a warning lamp to show up on the dashboard. If you have an extra, use it in the lock. You may be able to finesse the cylinder with some graphite or WD-40, but this technique only works for a limited time.
Replace the ignition cylinder when you have a replacement key. Follow the steps above to install the new ignition cylinder. When installing the new ignition cylinder, make sure it is properly seated within the flange of the steering column tube, and that it is correctly aligned with the keyway on the shroud for the steering column. If you're not sure about the correct alignment of the cylinder, consult your car's repair manual or an expert.
After the cylinder has been installed then turn the ignition key to ACC or RUN. Listen for the click to confirm that the ignition switch has been fully seated in the cylinder. If your vehicle has an anti-theft device, you will need to perform the anti-theft relearning procedure for the new ignition cylinder to program it to your key.
Some experts suggest hiring a professional to replace the ignition cylinder, as it is typically required to deactivate the airbag inside the steering column in order to access the cylinder. The replacement will also likely require the removal of the steering wheel and the covers for ignition. This is why you should let an experienced mechanic. They will be able remove the cover for your steering wheel and replace it with a new ignition locking cylinder into your vehicle. They will also be able make sure that the ignition lock cylinder is programmed by your key and that it starts correctly when you insert it.
Installing the Ignition Cylinder
Although ignition lock cylinders are becoming less necessary in modern vehicles thanks to advancements in remote start and push-to-start systems, they're prevalent on older vehicles. If your car's ignition switch or key seems to be stuck or you're having trouble starting the vehicle, a defective ignition lock cylinder could be to blame. It's relatively simple to replace your car's ignition lock cylinder and repair the problem.
The ignition cylinder is a mechanical part of the system which slides into the ignition switch of your car and provides power to rest the engine. While many people confuse the term "ignition switch" with the ignition cylinder, they're actually two separate components. The switch is the electrical component that connects to your car's computer and sends signals to activate the motor when you turn the ignition key.
Ignition lock cylinders have pins that move upwards and downwards to let your key slide into and rotate in the cylinder. Each movement of the cylinder and the key creates a small amount of friction that helps keep the key in place, but over time, these small movements can cause the tumblers on the wafer to wear down. If the tumblers wear down, your car's key won't be able to slide into or rotate the cylinder.
The first sign of trouble is usually a worn-out ignition coil in the majority of cars. The key could also get stuck and be difficult to insert into or remove from the ignition lock cylinder. ignition cylinder repair are indicators that you should replace your ignition lock cylinder as quickly as possible.
It's not difficult to replace the ignition cylinder, but you should only do it if you are confident that you will follow the correct procedure for your specific make and model. A full repair manual for your vehicle will help you get the task done quickly and accurately. If you are not comfortable installing the ignition cylinder on your own it is possible to have one of our ASE-certified mobile mechanics do the job for you at a convenient time and place.
Test the Ignition Cylinder
The ignition lock cylinder, also referred to as the ignition lock cylinder, is a mechanical component that fits on your key to permit it to turn and start your vehicle. It is placed inside the ignition switch that locks the ignition, and reads the anti-theft code to authorize key turning. The ignition lock cylinder will wear out and eventually fail. This can cause issues with the vehicle's power supply or make it difficult to remove and insert keys.
The most obvious signs that your car's lock-cylinder is about to fail are difficulties in starting it or areas where the key becomes stuck when you turn it. These problems usually mean that the cylinder is worn down and requires replacement. In some cases you may even see an indicator light on your dashboard that signals the possibility of a failure.
As the cylinder ages, it can become damaged by corrosion or simply wear and wear and tear. This could cause the wafer tumblers and pins to wear out, cause damage or even break, which will make it impossible for your car's ignition to continue working. The ignition may still work in some instances by moving it around. However it could indicate that something is wrong.
You can check the cylinder's ignition to see whether it's worn-out or the key is bent or damaged. You can use a multimeter to check if there's voltage between the red wire of the module and the battery terminal of the ignition coil. If you are unable to detect any voltage or a switch, the module will likely require replacement.
The replacement of the ignition cylinder usually costs $200 to $300, and it's usually best to have an expert mechanic do the task. It's not an easy task due to the fact that you may need remove other components like the steering column, in order to reach the ignition cylinder. Depending on your vehicle, the replacement procedure can also require you to disable the airbag system, and then you'll need to reprogramme your key to work with the new cylinder. It is usually done by an authorized dealer. However, you can do it yourself if you have the right tools and instructions.