How to Repair an Ignition Lock Cylinder
If your car's key will not turn or turn, it's time to replace the cylinder for ignition lock. Contrary to the switch that is the electrical component of the ignition system, which sends power to your vehicle's engine, the lock cylinder is the mechanical tumbler your key can slide into.
Over time, "wafers" can break or become worn out. Using WD-40 or graphite may temporarily fix the problem, but replacement is the only permanent solution.
Removing the steering column
Modern cars do not use steering column locks. Instead, they use keys that can be used to start the car by pressing and turning the switch on the dash panel. This modern system is easier and more efficient than the older lock cylinder method. However, there are some older vehicles that use the traditional ignition lock cylinder. If this component fails, it could be necessary to replace it to get the car started. This is not a job for the novice and is best left to an experienced professional.
With a screwdriver, take out the fasteners holding the trim panels that surround the lower and upper parts of the steering column. This will allow you access to the area around the steering column.
On the side of the column that is closest to the driver, you'll notice an Allen head bolt that holds the assembly of the wiper and signal. Remove this bolt and place it aside. Depending on the year of your car, you might have three or four small screws with flat heads that secure the plastic cover that covers the turn signal switch. Remove these screws and place them aside.
To get to the lock cylinder, you'll have to take off the wiper/signal unit. You can either use a special tool to remove it or ghetto it with an object of metal, such as a cold-chisel. Locksmiths are also able to use a shear bolt removal kit.
If you are unable to insert the key into the ignition switch the lock cylinder could be stuck. Try inserting the key and then moving it to the ACC position to depress the lock cylinder pin or you can contact an expert locksmith for assistance.
A locksmith can use a shear cylinder removal tool or they can cut the pin from the lock cylinder using an electric torch, and then shave it down to remove it from the cylinder. They will be able to change the cylinder's key to match your existing keys and will help you save the cost of buying a new ignition cylinder.
Replacing the Ignition Cylinder
The ignition cylinder is the cylindrical mechanical part that houses and locks your car's key. The cylinder "reads" the anti-theft code and fits your key to start or stop your vehicle. As time passes the cylinder wears out. It could also break or get bent. In this instance you'll need replace the cylinder in order to start your car.
The signs of a damaged or worn cylinder are issues when turning your key or with the ignition switch not moving into the ACC or RUN position, or with a warning light appearing on the dashboard. If you have a spare, you can try using it in the lock. You might be able to finesse the cylinder with some graphite or WD-40, however this technique only works for so long.
Replace the ignition cylinder when you have an additional key. Follow the steps above to install the new ignition cylinder. When installing the new ignition cylinder, ensure it is seated within the steering column tube flange, and that it is aligned correctly with the keyway on the shroud of the steering column. 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 and the ignition switch is turned to ACC or RUN. You should hear a click confirm that the ignition switch has been completely seated into the cylinder. If your vehicle has an anti-theft system, you will be required to go through the anti-theft relearn procedure to programme the new ignition cylinder into your key.
Some experts suggest having a professional replace the ignition cylinder since it is typically necessary to disable the airbag inside the steering column to gain access to the cylinder. The replacement may require removing the steering wheel and the covers for ignition. This is why it's best to leave the job to a mechanic with experience. They'll be able to remove the cover on your steering wheel and install a new ignition locking cylinder inside your car. They'll also be able make sure that the ignition lock cylinder is programmed using your key and is working properly when you insert it.
Installing the Ignition Cylinder
Although ignition lock cylinders have become less important in modern cars due to remote start and push-tostart systems older vehicles still have them. If your car's ignition switch is stuck, or if you're experiencing difficulty starting your vehicle it's possible that a damaged ignition lock cylinder may be the reason. It's a good thing that it's fairly easy to replace your vehicle's ignition lock cylinder and repair the issue.
The ignition cylinder is the part of the system that is inserted 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 are actually two separate parts. does a new ignition switch require a new key is the electrical portion that connects to the computer in your car and transmits signals to turn on the motor when you turn the key.
The pins on the cylinders of ignition locks move up and down, permitting your key to move and rotate within the cylinder. Every movement of the key and cylinder creates friction that keeps the key in its place. However, over time the wafer tumblers may wear out. If the tumblers get worn out the key will be unable to slide into the cylinder, or turn it.
The first sign of trouble is usually a worn ignition coil in most cars. However, the key could also begin to stick 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.
Replacing the ignition cylinder on your vehicle isn't difficult, but it's an undertaking that should be done by a professional do-it-yourselfer if you're confident enough to follow the right procedure for your specific make and model of vehicle. A complete 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 then let one of our ASE certified mobile mechanics complete the repair for you at a time and location that is convenient for you.
Testing the Ignition Cylinder
The ignition lock Cylinder is a mechanical piece that is affixed to your key and permits it to rotate and start your vehicle. It's located inside the ignition switch which is locked to the ignition and reads the anti-theft code to allow key turning. The ignition lock cylinder is prone to wear and may eventually fail, causing problems with the power supply to your vehicle or making it hard to insert and remove the key.
The main signs that a car's lock cylinder is about be damaged is having trouble starting your car or locating locations where the key is stuck when you try to turn it. These issues are typically a sign that the cylinder needs to be replaced. In certain instances, you might even notice an alert light on your dashboard that indicates the possibility of a failure.
As the cylinder ages, it may be damaged through wear and wear and. This can cause the pins and tumblers made of wafer to wear out, cause damage or even break, which could make it impossible for your car's ignition to continue functioning. In certain instances the ignition may work if you jostle it in different directions but this is a dangerous indicator that something is wrong.
You can test your ignition cylinder to see whether it's worn-out or if the key is bent or damaged. You can test with a multimeter 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, the switch and module are likely to require replacement.
Replacing the ignition cylinder typically costs between $200 and $300, and it's usually best to let a professional mechanic perform the task. The process is complicated due to 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 reprogramme your key in order to work with the new ignition cylinder. This can be done at the dealership, but you can learn how to do it yourself using the proper tools and instructions.