How to Repair an Ignition Lock Cylinder
If your car's key won't turn and it's time to replace the ignition lock cylinder. The lock cylinder is a tumbler made of mechanical that your key slides into, in contrast to the switch, which is an electrical component of the ignition system.
Over time, "wafers" can break or become worn out. Using WD-40 or graphite could temporarily resolve the issue, but replacement is the only solution that lasts.
Removal of the Steering Column
Modern cars do not utilize a steering column lock cylinder. Instead, they utilize keys that can be used to start the vehicle by pressing and turning the switch on the dashboard panel. This modern system works better and is simpler than the older lock-cylinder method. Some older vehicles still employ the traditional lock cylinder. If this part fails, it may be required to replace it in order to get the car started. This is a job that should be handled by professionals.
Remove the trim panels that cover the lower and upper steering columns with the help of a screwdriver. This will allow access to the area surrounding the steering column.
There is an Allen head bolt on the side of the steering wheel that is closest to the driver that keeps the signal unit and wiper in the correct position. Remove this bolt and place it away. Based on the year of your car, you might have 3 or 4 small screws with a flat head that hold the plastic cover over the turn signal switch in place. Remove these screws and place them aside.
To access the lock cylinder, you'll have to take off the signal/wiper assembly. This requires the use of a specially designed tool, or you could to do it using the help of a piece of metal, such as a cold chisel. Locksmiths are also able to use a shear bolt removal kit.
If you can't insert the key into the ignition switch the lock cylinder could be stuck. Try inserting the key and moving it to the ACC position to press the lock cylinder pin or you can contact an expert locksmith for assistance.
A locksmith can use a shear tool to remove the lock cylinder. They can use a torch to cut the pin and then shave the pin to take it off. 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.
Replacing the Ignition Cylinder
The ignition cylindrical cylinder is a mechanical component which houses and secures the key of your car. The cylinder "reads" the anti-theft code and fits your key to turn on or off your car. As time passes the cylinder wears out. It may also become bent or damaged. If car ignition switch replacement occurs, the cylinder may have to be replaced in order for your car to begin.
Signs of a damaged or worn cylinder are issues with turning your key, or the ignition switch not moving to the ACC or RUN position, or a warning light appearing on the dash. If you have a spare, consider 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.
Replace the ignition cylinder if you have an alternative key. Follow the steps above to install the new ignition cylinder. Install the new ignition cylinder by making sure it's securely fitted into the steering-column tube flange and aligned to the keyway on the shroud. Consult your car's manual or an expert to make sure the cylinder is correctly aligned.

Once the cylinder has been installed and the ignition switch is turned to ACC or RUN. Listen for the click to confirm that the ignition switch is fully seated into the cylinder. If your vehicle has an anti-theft device, you will have to perform the anti-theft relearn process to programme the new ignition cylinder to your key.
Some experts suggest that you hire a professional to replace your ignition cylinder. This is due to the fact that it's often necessary to disable the airbag in the steering column for access to the cylinder. Additionally, the replacement is likely to involve removal and replacement of the ignition and steering wheel covers. This is why it's recommended to let an experienced mechanic. They'll be able remove the cover on the steering column and install a brand new ignition lock cylinder in your vehicle. They'll also be able make sure that the ignition lock cylinder has been programmed with your key and starts properly when you insert it.
Installing the Ignition Cylinder
While ignition lock cylinders are becoming less essential in modern vehicles thanks to advances in push-to-start and remote start systems, they're prevalent on older vehicles. If your ignition switch or key is stuck or you're experiencing difficulty starting your vehicle, a defective ignition lock cylinder may be to blame. It's easy to fix the issue by replacing the cylinder of the ignition lock.
The ignition cylinder is the part of the system that slides into the ignition switch of your car and supplies power to the rest of the engine. While many people confuse the phrase "ignition switch" with the ignition cylinder, they're actually two separate parts. The switch is the electrical component that connects to your car's computer and transmits signals to activate the motor when you turn the key.
Ignition lock cylinders feature 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 tiny friction that keeps the key in place, but over time, these tiny movements can cause the wafer tumblers to wear down. If the tumblers get worn out the key will not be able slide into the cylinder or rotate it.
The first indication of trouble is usually a worn-out ignition coil that is found in the majority of automobiles. However, the key can become stuck and become difficult to insert or remove from the cylinder. These are all indications that your ignition lock cylinder should be replaced as soon as is possible.
It's easy to change your ignition cylinder, however, you should only do it if are confident that you can follow the correct procedure for your vehicle's specific make and model. You can do the job quickly and efficiently with a complete repair guide for your vehicle. If you're not comfortable installing the ignition cylinder on your own, you can have one of our ASE-certified mobile mechanics do the job for you at a convenient time and place.
Testing the Ignition Cylinder
The ignition lock Cylinder is a mechanical piece that is affixed to your key and allows it to rotate and start your vehicle. It is placed inside the ignition switch, which locks the ignition and reads the anti-theft codes to authorize the key to turn. The cylinder that locks the ignition is prone to wear and can eventually fail, causing issues powering your vehicle or making it hard to insert and remove the key.
The main signs that a car's lock cylinder is about to fail is difficulty getting your car started or locating positions where the key gets stuck when you attempt to turn it. These problems are usually an indication that the cylinder is in need of be replaced. In some instances you may notice a warning light on your dashboard, which signals an impending failure.
As the cylinder gets older it is prone to being damaged by corrosion or simply wear and wear and tear. This could cause the pins and tumblers to break down and break, preventing the ignition of your car from unlocking. In certain instances the ignition may function if you jerk it into different positions, but this could be a indication that something is wrong.
You can examine your ignition cylinder and see whether the cylinder or key is damaged or worn out. If you own a multimeter, it is possible to back-probe the module's red connection and the ignition coil's battery terminal to determine if there's the voltage. If you do not find any, then the switch and module likely need replacing.
The replacement of the ignition cylinder typically costs between $200 and $300, and it's recommended to hire a professional mechanic perform the job. The process is made more complicated by the fact that you may require removing other components to access the cylinder for ignition, such as the steering column. The replacement procedure may also require you to disable the airbag system and reprogram your key to work with the new ignition cylinder. This process is usually done by an authorized dealer however, you can also learn how to do it yourself using the appropriate tools and directions.