How to Repair an Ignition Lock Cylinder
If your car key will not turn, it's time change the ignition lock cylinder. The lock cylinder is a tumbler made of mechanical that your key can slide into, as opposed to the switch which is an electrical component of the ignition system.
Over time, "wafers" can break or become worn out. WD-40 and graphite are able to temporarily solve the problem, but replacing the tumblers is the only way to fix it.
Removing the Steering Column
Modern cars do not use steering column locks. They use keys to start the car by pressing and rotating a switch in the dash panel. This modern system functions better and is simpler than the older lock-cylinder method. Some older vehicles still employ the old lock cylinder. When this part fails, you may require replacing it in order to restart the vehicle. This isn't a task for the novice and is best left to an experienced professional.
With a screwdriver, take out the fasteners holding the trim panels that cover the lower and upper steering column. This will allow you access to the area around your steering column.
On the side of the steering column closest to the driver, you'll notice an Allen head bolt that pins the assembly of the wiper and signal. Unscrew this bolt and set it aside. Depending on the year of your car, it could have three or four small screws with flat heads that hold the plastic cover over the turn signal switch. Take these screws off and put them aside.
To access the lock cylinder you will need to take off the signal/wiper unit. This will require the use of a specific tool or you can ghetto to do it using the help of a piece of metal, such as a cold chisel. ignition lock repair near me can also make use of a bolt removal kit.
If you're unable to insert the key into the ignition switch the lock cylinder could be stuck. You can either call a locksmith or insert the key into the ignition switch and move it to the ACC to press the lock cylinder's pin.
A locksmith can make use of a shear cylinder removal tool or cut the pin from the lock cylinder using torch and then shave it to remove it from the cylinder. They can also re-key your ignition cylinder to ensure it matches the keys you already have. This will save you money on a new ignition.
Replace the Ignition Cylinder
The ignition cylinder is a cylindrical mechanical part that is used to house and lock the key to your car. The cylinder is fitted to the key and "reads" the anti-theft code to allow or deny starting of your vehicle. Over time the cylinder will wear out. It could also be bent or broken. If this happens, the cylinder will have to be replaced to allow your car to start.
The signs of a damaged or worn cylinder can be seen in problems with turning the key, or the ignition switch not moving to the ACC or RUN position, or a warning light appearing on the dashboard. If you have a spare, try using it in the lock. You might be able make the cylinder more pliable using graphite or WD-40, however this technique only works for so long.
If you have a brand new key, replace the ignition cylinder and follow the steps outlined above to install it. When installing the new ignition cylinder ensure that it is placed in the flange on the steering column tube, and that it is properly aligned with the keyway on the steering column shroud. If you are unsure of the proper alignment of the cylinder, check your car's repair manual or an expert.
After the cylinder has been installed then turn the ignition key to ACC or RUN. Watch for a click to confirm that the ignition switch has been fully seated in the cylinder. If your vehicle has an anti-theft device, you will have to follow the anti-theft relearn process for the new ignition cylinder to program it to your key.
Some experts recommend that you have a professional replace your ignition cylinder. This is because it is often necessary to disable the steering column airbag to get to the cylinder. The replacement will also likely require the removal of the steering wheel and the covers for ignition. This is why it's best to leave this job to a professional mechanic with experience. They'll be able to remove the cover on your steering wheel and install a brand new ignition locking cylinder inside your car. They'll also be able verify that the ignition lock cylinder is programmed with your key, and that it starts correctly when you insert it.
Installing the Ignition Cylinder
While ignition lock cylinders are becoming less necessary in modern vehicles thanks to advances in push-to-start and remote start systems, they're common on older cars. If your ignition switch or key is stuck or you're having difficulty starting your car, a defective ignition lock cylinder may be the cause. It's relatively simple to replace the ignition lock cylinder, and then fix the issue.
The ignition the cylinder is a part of the system which connects to the ignition switch in your car and provides power to the rest the engine. 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 the computer in your car and transmits signals to activate the motor when you turn the key.
Ignition lock cylinders feature pins that move up and down to allow your key to slide into and rotate in the cylinder. Every movement of the cylinder and key creates a little friction that helps keep the key in place, but over time, these tiny movements could cause the wafer tumblers to wear down. When the tumblers are worn down, your car's key won't be able to slide into or rotate the cylinder.
A worn-out ignition cylinder is usually the first indication of trouble in the majority of vehicles. The key could also become stuck and difficult to insert into or remove from the ignition lock cylinder. These are indications that you should replace the ignition lock cylinder as fast as possible.
It's not difficult to replace the ignition cylinder, but you should only do it if are certain that you will follow the proper procedure for your car's specific model and make. You can complete the job quickly and correctly by using a complete repair manual for your vehicle. If you're not comfortable installing the ignition cylinder on your own You can let one of our ASE-certified mobile mechanics complete the job for you at a convenient time and place.
Testing the Ignition Cylinder
The ignition lock cylinder is a mechanical part that fits your key and permits it to rotate and start your car. It is inserted into the ignition switch which locks the ignition and reads the anti-theft codes to allow the key to turn. The cylinder for the ignition lock is susceptible to wear and may eventually fail, leading to issues powering your vehicle or making it difficult to insert and remove the key.
The most obvious indicators that your car's lock cylinder is about to fail is difficulty starting it or finding areas where the key gets caught when you turn it. These problems are usually an indication that the cylinder must be replaced. You might even see an alert light flashing on your dashboard to indicate an imminent failure.
As the cylinder ages, it can become damaged due to corrosion or wear and wear and tear. This can cause the pins and wafer tumblers to wear out and break or damage and prevent the ignition of your car from unlocking. In some cases the ignition may function if you jerk it around however this could be a indicator that something is wrong.

You can check the cylinder of your ignition and determine whether the cylinder or key is damaged or worn out. You can test with a multimeter if there's voltage between the red wire connector 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 most likely require replacement.
Replacing the ignition cylinder typically costs between $200 and $300, and it's generally recommended to let an experienced mechanic complete the job. It can be complicated because you may have remove other components, such as the steering column, to reach the ignition cylinder. The replacement process may require you to turn off the airbag system and reprogram your key in order to work with the new ignition cylinder. It's usually done by an agent. However, you could do it yourself if you have the right tools and the right instructions.