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 component of the ignition system that sends energy to the engine of your car, the lock cylinder is the mechanical tumbler your key is able to slide into.
Over time, "wafers" can break or become worn out. The use of WD-40 or graphite may temporarily resolve the issue, but replacement is the only way to fix it permanently.
The steering column can be removed
Most modern cars no longer use a steering column lock cylinder. Instead, they have keys that are used to start the car by pressing and turning an on the dash panel. This modern system functions better and is much simpler than the lock-cylinder system of the past. Some older cars still use the traditional lock cylinder. If this part fails, you may require replacing it in order to restart the vehicle. This is not a job for the novice and should be left to an experienced professional.
With a screwdriver, take out the fasteners holding the trim panels covering the lower and upper parts of the steering column. This will allow you access to the area around the steering column.
You will find an Allen head bolt on the side of the steering wheel closest to the driver. This bolt keeps the signal unit and wiper in place. Unscrew this bolt and set it aside. Depending on your car's year you might see 3 or 4 small screws with flat heads that keep the plastic over the turn-signal switch in place. Remove these screws and set them aside.
To get to the lock cylinder, you'll need to take off the signal/wiper unit. This will require the use of a specially designed tool or perform the task using a piece of metal like a cold chisel. A locksmith can also use the bolt removal kit.
If you are unable to insert the key into the ignition switch, the lock cylinder may be stuck. You can try inserting the key and moving it to the ACC position to press the lock cylinder pin or you can call a locksmith for help.
A locksmith can use a shear cylinder removal tool or cut the pin from the lock cylinder using torch and then shave it to remove it from the assembly. 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 cylindrical cylinder is a mechanical component which houses and locks the key of your car. The cylinder "reads" the anti-theft code and then fits your key to turn on or off your vehicle. The cylinder wears down over time. It may also become bent or damaged. If this occurs, the cylinder may have to be replaced in order for your vehicle to start.
A worn or broken cylinder can cause problems turning the key, or causing the ignition switch to not move into the ACC position or RUN or a warning light to illuminate on the dashboard. If you have an extra, put it inside the lock. You could try using some WD-40 or graphite to adjust the cylinder's settings, however, this is only for a brief period of period of time.
If you have a new key to replace the ignition cylinder, and follow the steps outlined above to install it. Install the new ignition cylinder by making sure it's securely placed into the steering column tube flange and aligned with keyway on the shroud. If you are unsure of the proper alignment of the cylinder, refer to your vehicle's repair manual or an automotive expert.
Once the cylinder has been installed, turn the ignition key to ACC or RUN. Listen for a click that signifies that the ignition switch has been fully seated in the cylinder. If your car has an anti-theft device, you'll need to follow the anti-theft relearn process to program the new ignition cylinder into your key.
Some experts recommend having a professional replace the ignition cylinder, as it is usually required to deactivate the airbag in the steering column to access the cylinder. In addition, the replacement process will likely require removal and replacement of the steering wheel and ignition covers. This is why it's best to leave the job to a mechanic with experience. They will be able remove the cover on your steering wheel and install a new ignition locking cylinder inside your vehicle. They'll also be able make sure that the ignition lock cylinder has been programmed using your key, and that it will start correctly when you insert it.
Installing the Ignition Cylinder
While ignition lock cylinders are becoming less essential in modern vehicles because of advances in remote start and push-to-start systems, they're prevalent on older vehicles. If you're having difficulty getting your car started or the ignition switch is faulty, it could be an issue with your ignition cylinder. Luckily, it's relatively easy to replace the ignition lock cylinder and repair the problem.
The ignition cylinder is a mechanical component of the system which connects to the ignition switch of your car and supplies power to the rest the engine. Many people confuse the term "ignition switch" with the ignition cylinder, they're actually two separate parts. The switch is an electrical device that connects to the computer in your car to transmit signals to turn on the engine when you turn the ignition key.
Ignition lock cylinders have pins that move up and down to allow the key to slide into and rotate inside the cylinder. Each movement of the cylinder and key creates friction that keeps the key in position. However, as time passes the wafer tumblers will wear out. When the tumblers wear down, the key will not be able to slide into the cylinder, or turn it.
The first indication of trouble is usually a worn out ignition coil in most cars. The key can be stuck and make it difficult to insert into or out of the ignition lock cylinder. These are all signs that your ignition lock cylinder should be replaced as soon as it is possible.
It's not a big deal to replace the ignition cylinder, but you should only do it if are confident that you can follow the proper procedure for your car's specific model and make. A complete repair manual for your vehicle will assist you in getting the job done efficiently and correctly. If you're not confident installing the ignition cylinder on your own, have one of our ASE certified mobile mechanics do the repair for you at a time and place that's convenient to you.
Test the Ignition Cylinder
The ignition lock cylinder, also known as the ignition lock cylinder, is a mechanical component that fits your key to permit it to turn and start your car. It's located inside the ignition switch which is locked to the ignition and reads the anti-theft code to authorize key turning. The cylinder for the ignition lock will wear out and eventually fail. This can cause problems with the vehicle's power supply or make it difficult to remove and insert keys.
The main signs that a car's lock cylinder is about go bad include difficulty starting your car or locating locations where the key is stuck when you attempt to turn it. These issues are typically a sign that the cylinder needs to be replaced. In some cases you may notice a warning light on your dashboard that indicates the possibility of a failure.
As the cylinder age, it may be damaged due to wear and tear. This can cause the pins and tumblers to wear out and break and stop your car's ignition from unlocking. In certain instances, the ignition will still work if you jostle it around however this is a dangerous indication that something is wrong.
You can test your ignition cylinder to see if it's worn out or the key is bent or damaged. If you own a multimeter, you can probe the module's red wire connection and the battery terminal of the ignition coil to see if there is voltage. If you do not find any, then the switch and module are likely to require replacement.
The replacement of the ignition cylinder usually costs between $200 and $300 and it's generally recommended to have an expert mechanic do the job. car ignition lock is made more complicated by the fact that you might need to remove other components to access the ignition cylinder, including the steering column. Depending on the model of your vehicle the replacement process may be accompanied by the need to disable the airbag system, and then you'll need change the programming of your key to work with the new cylinder. This is usually handled by an authorized dealer. However, you can do it yourself if have the right tools and the right instructions.