How to Repair an Ignition Lock Cylinder
If your car's keys isn't turning, it's time to change the ignition lock cylinder. The lock cylinder is a mechanical tumbler that your key can slide into, and not the switch, which 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 solution.
Removing the Steering Column
Modern cars do not utilize a steering column lock cylinder. They make use of keys to start the car by pressing and turning a switch in the dashboard panel. This newer system is much simpler and more effective than the older lock cylinder method. Some older cars still use the traditional lock cylinder. If this part fails, it may be required to replace it in order to start the car. This isn't a task for the novice and is best left to professionals.
With a screwdriver, take out the fasteners that hold the trim panels that cover the lower and upper steering column. This allows you to access the area around the steering column.
On the side of the column closest to the driver, you'll find 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 vehicle, you may find 3 or 4 small screws with flat heads that hold the plastic on top of the turn-signal switch in place. Unscrew them and put them aside.
To access the lock cylinder, you'll have to take off the wiper/signal unit. You can either employ a special tool remove it or ghetto it with a piece metal, like a cold-chisel. A locksmith will also be 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. You can try inserting the key and then moving it to the ACC position to release the lock cylinder pin, or you can call an expert locksmith for assistance.
A locksmith will be able to use a shear cylinder removal tool or cut the pin from the lock cylinder with an electric torch, and then shave it to remove it from the assembly. They can re-key your ignition cylinder so that it matches the keys you already have. This will save you money on an entirely new ignition.
Replace the Ignition Cylinder
The ignition cylinder is the mechanical cylinder which houses and locks your car's key. The cylinder "reads" the anti-theft codes and matches your key to allow you to start or stop your vehicle. Over time the cylinder wears out. It can also be bent or damaged. In this case you'll need replace the cylinder in order to get your car running.
A worn or broken cylinder may cause issues when turning the key, or the ignition switch not moving into the ACC position or RUN, or a warning light to appear on the dashboard. If you have a spare, try using it in the lock. You might be able finesse the cylinder with some graphite or WD-40, but this method is only effective for a limited time.
Replace the ignition cylinder if have an additional key. Follow the steps above to install the new ignition cylinder. When installing the new ignition cylinder make sure it is properly 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'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 and the key is turned to the ACC or RUN position. You should hear a click that indicates that the ignition switch is fully installed in the cylinder. If your vehicle is equipped with an anti-theft device, you will have to go through the anti-theft relearning procedure for the new ignition cylinder to program it to your key.
Some experts recommend hiring a professional to replace the ignition cylinder, since it is usually necessary to disable the airbag inside the steering column to access the cylinder. Furthermore, the replacement will likely require removing and replacing the ignition and steering wheel covers. This is why you should let a mechanic with experience. They'll be able to remove the steering column cover and properly install a new ignition lock cylinder in your vehicle. They'll also ensure the ignition lock cylinder is programmed using your key and that it is working correctly when you insert it.
Installing the Ignition Cylinder
Even though ignition lock cylinders have become less important in modern vehicles because of remote start and push-tostart technology, older vehicles still have these cylinders. If your car's ignition switch is stuck, or you're having difficulty starting your car, a defective ignition lock cylinder may be the cause. It's a good thing that it's fairly easy to replace the ignition lock cylinder and fix the issue.
The ignition cylinder is the mechanical part of the system that is inserted into the ignition switch of your car and sends power to the rest of the engine. Many people confuse the phrase "ignition switch" with the ignition cylinder, they're two distinct components. The switch is the electrical component that connects to the computer in your car and transmits signals to turn on the motor when you turn the key.
The pins on cylinders for ignition locks move up and down, permitting your key to move and rotate within the cylinder. Each movement of the cylinder and the key creates a little friction that keeps the key in place but over time, these tiny movements could cause the wafer tumblers to wear down. If the tumblers get worn out the key will not be able to slide into the cylinder or rotate it.
The first sign of trouble is usually a worn-out ignition coil in the majority of cars. The key may also get stuck and be difficult to insert into or out of the ignition lock cylinder. These are indications that you need to replace the ignition lock cylinder as quickly as possible.
It's not difficult to change your ignition cylinder, but you should only do it if you are certain that you will follow the correct procedure for your vehicle's specific make and model. A complete repair manual for your car will help you get the task done quickly and accurately. If G28CarKeys 're not confident installing the ignition cylinder on your own then let one of our ASE certified mobile mechanics complete the repair for you at a time and in a location that's convenient for you.
Testing the Ignition Cylinder
The ignition lock cylinder, also known as the ignition lock cylinder is a mechanical device that is fitted to your key to permit it to turn and start your vehicle. It's located inside the ignition switch, which locks the ignition and reads the anti-theft code to permit key turning. The ignition lock cylinder will wear out and eventually fail. This could cause issues with the vehicle's power supply or make it difficult to remove and insert keys.
The most obvious indicators that your car's lock cylinder is in danger of failing is difficulties in starting it or locations where the key gets caught when you turn it. These signs usually mean that the cylinder is damaged and needs replacement. You might even notice an alert light flashing on your dashboard to indicate an imminent failure.
As the cylinder gets older, it can become damaged due to corrosion or wear and tear. This could cause the pins and tumblers made of wafer to wear down, cause damage or even break, which could make it impossible for your car's ignition to continue working. The ignition might still work in some cases if you move it around. However it could indicate that something is not right.
You can examine your ignition cylinder and see whether the cylinder or the key is damaged or worn out. You can use a multimeter to check whether there is a voltage difference between the red wire connection of the module and the battery terminal of the ignition coil. If you do not find any or no voltage, then the switch and module probably need to be replaced.
Replacing the ignition cylinder typically costs $200 to $300, and it's recommended to hire an experienced mechanic complete the task. The process is complicated by the fact that you might have to take other parts to access the ignition cylinder, including the steering column. The replacement process may require you to deactivate the airbag system, and then reprogram your key to work with the new ignition cylinder. This is typically done at a dealer, but you can learn how to do it yourself with the appropriate tools and directions.