How to Repair an Ignition Lock Cylinder
If your car's ignition key isn't turning and it's time to replace the cylinder for ignition lock. Unlike 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 that your key is able to slide into.
Over time over time, these "wafer" tumblers can wear out or break. WD-40 and graphite are able to temporarily resolve the issue however, replacing the tumblers is the only way to fix it.
The steering column can be removed
Modern cars do not use steering column locks. They make use of keys to start the car by pressing and turning a switch in the dashboard panel. This newer method is simpler and more effective than the old lock cylinder method. Some older cars still use the old lock cylinder. If this component fails, it may be required to replace it to allow the car to start. This isn't a task for the beginner and is best left to an experienced professional.
Using a screwdriver, remove the fasteners that hold the trim panels that cover the lower and upper parts of the steering column. This will allow access to the area around the steering column.
You will see an Allen head bolt on the side of the steering wheel closest to the driver. It holds the wiper/signal unit in place. Unscrew G28 and put it aside. Based on the year of your car, it could have three or four small screws with flat heads that secure the plastic cover that covers the turn signal switch. Unscrew these and set them aside.
To get to the lock cylinder you will have to take off the wiper/signal unit. This requires the use of a specific tool or to do it using a piece of metal like a cold chisel. A locksmith will also be able to use a shear bolt removal kit.
If the key isn't able to be put into the ignition switch, it's likely that the lock cylinder is stuck. You can try inserting the key and then moving it to the ACC position to depress the lock cylinder pin, or you can call a locksmith for help.
A locksmith will be able to use a shear cylinder removal tool or cut the pin from the lock cylinder using 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 save you the expense of purchasing a new ignition cylinder.
Replace the Ignition Cylinder
The ignition Cylinder is a cylindrical mechanical component which houses and secures the key in your vehicle. 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 could also be bent or damaged. In this instance you'll need replace the cylinder to start your car.
A worn or broken cylinder may cause issues when turning the key, or cause the ignition switch not moving into the ACC position or RUN, or a warning light to illuminate on the dashboard. If you have an extra key, put it in the lock. You might be able smooth the cylinder using graphite or WD-40, however this method only works for a limited time.
If you've got a new key you can replace the ignition cylinder and follow the steps above to install it. When installing the new ignition cylinder ensure it is seated within the flange on the steering column tube and is correctly aligned with the keyway on the shroud for the steering column. If you're not sure about the proper alignment of the cylinder, refer to your vehicle's repair manual or an automotive expert.
After the cylinder has been installed, turn the ignition key to ACC or RUN. You should hear a click that indicates that the ignition switch is fully set within the cylinder. If your vehicle is equipped with an anti-theft system, you will have to go through the anti-theft relearning procedure for the new ignition cylinder to program it to your key.
Some experts suggest replacing the ignition cylinder, since it is usually required to shut off the airbag in the steering column in order to access the cylinder. The replacement process will likely require removing the steering wheel and the covers for ignition. Because of this, it is a job that should be left to a skilled mechanic. They'll be able to remove the cover on the steering column and properly install a new ignition lock cylinder into your vehicle. They'll also verify that the ignition lock cylinder has been programmed with your key and is working properly when you insert it.
Installing the Ignition Cylinder
Although ignition lock cylinders have been less significant in modern vehicles due to remote start and push-tostart systems, older vehicles still have them. If your car's ignition switch or key seems to be stuck, or you're experiencing difficulty starting your vehicle, a defective ignition lock cylinder could be the reason. It's relatively simple to replace your vehicle's ignition lock cylinder, and then fix the problem.
The ignition cylinder is a mechanical component of the system that slides into the ignition switch of your vehicle and provides power to the rest the engine. While many people confuse the phrase "ignition switch" with the ignition cylinder, they are actually two separate components. The switch is the electronic component that connects to the computer in your car and sends signals to activate the motor when you turn the key.
Pins on ignition lock cylinders move upwards and downwards, permitting your key to slide and rotate inside the cylinder. Every movement of the cylinder and the key creates a small amount of friction that helps keep the key in place, but over time, these tiny movements could cause the wafer tumblers to wear down. When the tumblers have worn down, the key of your car won't be able to slide into or turn the cylinder.
A damaged ignition cylinder typically the first sign of trouble in the majority of vehicles. However, the key can become stuck and become difficult to insert or remove from the cylinder. These are indications that you should replace your ignition lock cylinder as quickly as possible.
It's not a big deal to replace your ignition cylinder, but you should only do it if you are confident that you will 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 quickly and correctly. If you're not comfortable installing the ignition cylinder yourself, have one of our ASE certified mobile mechanics complete the repair for you at a time and in a location that is convenient for you.
Test the Ignition Cylinder
The ignition lock Cylinder is a mechanical piece that is affixed to your key and allows it to turn and start your car. It is inserted into the ignition switch, which locks the ignition and reads the anti-theft codes to allow key turning. The ignition lock cylinder is prone to wear and eventually fail, leading to problems with powering your vehicle or making it difficult to remove and insert the key.
The most obvious indicators that a lock cylinder is about go bad include difficulty getting your car started or locating locations where the key is stuck when you try to turn it. These are usually an indication that the cylinder needs to be replaced. You might even see an alert light flashing on your dashboard to signal an imminent failure.
As the cylinder gets older it may be damaged by corrosion or simply wear and wear and. This could cause the pins and wafer tumblers to break down and break and stop your car's ignition from unlocking. In certain instances, the ignition will still work if you move it in different directions, but this could be a indication that something is wrong.
You can check the cylinder's ignition to see if it's worn out or if the key has been bent or damaged. You can use a multimeter to determine 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 voltage then the switch and module will likely require replacement.
The replacement of the ignition cylinder usually costs between $200 and $300 and it's generally recommended to let an experienced mechanic complete the task. The process is complicated by the fact that you might require removing other components to access the cylinder for ignition, such as the steering column. Based on the vehicle you have the procedure for replacing it may also require you to disable the airbag system, and then you'll need to reprogram your key to work with the new cylinder. This is usually handled by a dealer. However, you can do it yourself if have the right tools and instructions.