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How to Repair an Ignition Lock Cylinder If your car's keys will not turn or turn, it's time to replace the cylinder that controls the ignition. The lock cylinder is a mechanical tumbler that your key slides into, in contrast to the switch that is an electrical part of the ignition system. Over time, “wafers” can break or wear out. WD-40 and graphite are able to temporarily fix the issue however, replacing the tumblers is the only option. Removing the Steering Column Modern cars do not have a steering column lock cylinder. They use keys to start the car by pressing and turning a switch in the dash panel. This newer system works much more efficiently and is less complicated than the old lock-cylinder method. However, there are older vehicles that utilize the traditional ignition lock cylinder. If this part is damaged, it might be necessary to replace it to allow the car to start. This isn't a task for the novice and should be left to a professional. Remove the trim panels that cover the upper and lower column of the steering with the help of a screwdriver. This will allow access to the area surrounding the steering column. On the side of the column that is closest to the driver, you will see an Allen head bolt that holds the signal and wiper assembly to the column. ignition lock repair services and set it aside. Depending on the year of your vehicle you might see three or four small screws with flat heads that keep the plastic that covers the turn signal switch in place. Unscrew these and set them aside. To get to the lock cylinder, you'll have to remove the wiper/signal unit. You can either use a special tool to do this or ghetto it with an object of metal, such as a cold-chisel. Locksmiths can also make use of the bolt removal kit. If you are unable to insert the key into the ignition switch the lock cylinder might be stuck. You can try inserting the key, then moving it to the ACC position to release the lock cylinder pin, or you can call a locksmith for assistance. A locksmith can use a shear tool to remove the lock cylinder, or they can make use of a torch to cut the pin, then shave the pin down to take it off. They can change the cylinder's key to match your current keys and save you the expense of purchasing a new ignition cylinder. Replacing the Ignition Cylinder The ignition cylindrical cylinder is a mechanical component which houses and locks the key to your car. The cylinder is affixed to the key and “reads” the anti-theft codes to allow or denial of the starting of your vehicle. The cylinder can wear down over time. It could also break or get bent. In this case you'll need to replace the cylinder to get your car started. The 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 an extra key, use it in the lock. You may be able to smooth the cylinder using graphite or WD-40, however this method is only effective 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 that it is properly placed into the steering column tube flange and aligned to the keyway on the shroud. Refer to the car's manual or an expert to ensure the cylinder is correctly aligned. Once the cylinder is installed and the key is turned to the ACC or RUN position. Watch for a click which indicates the ignition switch is fully set in the cylinder. If your vehicle is equipped with an anti-theft device, you will have to go through the anti-theft relearn procedure for the new ignition cylinder in order to program it to your key. Some experts suggest hiring a professional to replace your ignition cylinder. This is because it's usually necessary to deactivate the airbag on the steering column in order in order to access the cylinder. The replacement will also likely require removing the steering wheel and the covers for ignition. This is a task best left to a professional mechanic. They'll be able remove the steering column cover and then properly install a new ignition lock cylinder to your vehicle. They will also be able make sure that the ignition lock cylinder is programmed using your key, and that it is properly started when you insert it. Installing the Ignition Cylinder Even though ignition lock cylinders are no longer as important in modern vehicles due to remote start and push-tostart systems older cars still make use of these cylinders. If you're having trouble starting your car or if the ignition switch is faulty it could be due to an issue with the ignition cylinder. Luckily, it's relatively easy to replace the ignition lock cylinder and fix the problem. The ignition the cylinder is a part of the system that slides into the ignition switch in your car and provides power to the rest of the engine. Many people confuse the term “ignition switch” with the ignition cylinder, they are actually two separate components. The switch is the electrical portion that connects to the computer in your car and sends signals to activate the motor when you turn the key. Ignition lock cylinders have pins that move upwards and downwards to allow your key to slide into and rotate inside the cylinder. Every movement of the cylinder and the key creates a tiny friction that keeps the key in place, but in time, these tiny movements could cause the wafer tumblers to wear down. When the tumblers wear down and the key is no longer able to slide into the cylinder, it will not be able slide into the cylinder or rotate it. The first sign of trouble is usually a worn out ignition coil that is found in the majority of automobiles. However, the key can be stuck and become difficult to insert or remove from the ignition cylinder. These are indicators that you should replace your ignition lock cylinder as quickly as possible. It's not a big deal to change your ignition cylinder, however, you should only do it if are confident that you will follow the correct procedure for your vehicle's specific model and make. A full repair manual for your vehicle will assist you in getting the job done quickly and correctly. If you're not comfortable installing the ignition cylinder yourself, you can 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 known as the ignition lock cylinder, is a mechanical part that is fitted to your key in order to enable it to turn and start your vehicle. It's affixed to the ignition switch which is locked to the ignition and reads anti-theft coding to authorize key turning. The cylinder that locks the ignition can wear out and eventually fail. This could cause issues with your vehicle's power or make it difficult to insert and remove keys. Some of the most common signs that your car's lock-cylinder is about to fail is difficulties in starting it or locations where the key gets caught when you turn it. These problems are usually an indication that the cylinder needs to be replaced. In certain instances you may even see an indicator light on your dashboard that signals an imminent failure. As the cylinder ages it is likely to be damaged by corrosion or wear and tear. This could cause the pins and wafer tumblers to wear out, damage or break and stop the ignition of your car from working. In some instances, the ignition will still work if you move it around, but this could be a indicator that something is wrong. You can test the cylinder in your ignition and see whether the cylinder or the key is damaged or worn out. You can test with a multimeter if there's voltage between the red wire connection of the module and the battery terminal of the ignition coil. If you do not find any, then the module and switch probably need to be replaced. The replacement of the ignition cylinder typically costs $200 to $300, and it's usually best to let a professional mechanic perform the task. It can be complicated because you may have to remove other components such as the steering column, in order to reach the ignition cylinder. The replacement procedure may also require you to deactivate the airbag system, and then reprogram your key to work with the new ignition cylinder. This process is usually done by a dealer however, you can also learn how to do it yourself with the right tools and instructions.