How to Repair an Ignition Lock Cylinder
If your car's key will not turn, it's time to replace the cylinder for ignition lock. In contrast to the switch which is the electrical portion of the ignition system that sends the power to the engine of your vehicle The lock cylinder is the mechanical tumbler your key can slide into.
Over time, "wafers" can break or wear out. WD-40 and graphite may temporarily resolve the issue, but replacing the tumblers is the only way to fix it.
Removing the Steering Column
Modern cars don't have steering column locks. Instead, they utilize keys that are used to start the car by pressing and turning a switch on the dash panel. This modern system is easier and more efficient than the traditional lock cylinder method. Some older cars still use the traditional lock cylinder. If this component fails, you might require replacing it in order to restart the vehicle. This is not a job for the beginner and should be left to an experienced professional.
Remove the trim panels that cover the lower and upper columns of the steering using a screwdriver. This will allow access to the area around the steering column.
On the side of the steering column closest to the driver, you'll see an Allen head bolt that pins the wiper/signal assembly in place. Unscrew this bolt and set it aside. Based on the year of your car, it could have 3 or 4 small screws with flat heads that hold the plastic cover over the turn signal switch in place. Remove these screws and set them aside.
To get to the lock cylinder you will have to take off the wiper/signal unit. This will require the use of a specially designed tool, or you could do it with the help of a piece of metal, such as a cold chisel. Locksmiths can also make use of the bolt removal kit.
If you can't insert the key into the ignition switch, the lock cylinder may be stuck. You can try inserting the key, then moving it to the ACC position to depress the lock cylinder pin or call a locksmith for help.
A locksmith can use a shear tool to take off the lock cylinder, or they can use a torch to cut the pin and then shave the pin to take it off. They will be able to change the cylinder's key to match the keys you have and will help you save the expense of purchasing a new ignition cylinder.
Replacing the Ignition Cylinder
The ignition cylinder is a cylindrical mechanical part that is used to house and lock the key to your vehicle. The cylinder is affixed to the key and "reads" anti-theft code to allow or deny starting of your vehicle. As time passes the cylinder wears out. It could also break or become bent. If this happens, the cylinder will require replacement in order for your vehicle to begin.
Symptoms of a broken or worn cylinder can be seen in problems with turning the key, or the ignition switch not moving into the ACC or RUN position, or a warning light appearing on the dashboard. If you have a spare, you can try using it inside the lock. You might be able to finesse the cylinder with some graphite or WD-40, but this method is only effective for a certain amount of time.
If you have a brand new key to replace the ignition cylinder, and follow the instructions above to install it. Install the new ignition cylinder making sure it's securely fitted into the steering-column tube flange and aligned with keyway on the shroud. If you are unsure of the correct alignment of the cylinder, consult your car's repair manual or an expert.
Once the cylinder has been installed, turn the ignition key to ACC or RUN. Listen for a click that indicates that the ignition switch is fully installed within the cylinder. If your vehicle is equipped with an anti-theft device, you will have to follow the anti-theft relearn procedure for the new ignition cylinder in order to program it to your key.
Some experts suggest replacing the ignition cylinder, as it is typically necessary to disable the airbag in the steering column in order to access the cylinder. In addition, the replacement process will likely involve removal and replacement of the steering wheel and ignition covers. This is why it's recommended to leave the job to a professional mechanic with experience. They'll be able to remove the steering wheel cover and install a brand new ignition locking cylinder into your car. They will also be able ensure that the ignition lock cylinder is programmed using your key, and that it starts correctly when you insert it.
Installing the Ignition Cylinder
Although cylinders for ignition locks are becoming less necessary in modern vehicles due to advances in remote start and push-tostart systems, they're prevalent on older vehicles. If you're having difficulty starting your car or if the ignition switch is faulty, it could be a defective ignition cylinder. It's relatively simple to replace the ignition lock cylinder and fix the problem.
The ignition cylinder is the mechanical part of the system that slides into the ignition switch of your car and sends power to the rest of the engine. The ignition switch as well as the ignition cylinder are separate components. The switch is the electrical portion that connects to the computer in your car and transmits signals to turn on the motor when you turn the ignition key.
Ignition lock cylinders have pins that move upwards and downwards to allow your key to slide into and rotate in the cylinder. Each movement of the cylinder and key creates friction, which keeps the key in place. However, as time passes the wafer tumblers may wear out. When the tumblers are worn down and the key is no longer able to slide into the cylinder, it will not be able to slide into the cylinder or rotate it.
The first indication of trouble is usually a worn out ignition coil in most cars. However, the key could also begin to stick and become difficult to insert or remove from the cylinder. These are indicators that you need to replace the ignition lock cylinder as soon as you can.
Replacing the ignition cylinder on your vehicle isn't difficult, but it is an undertaking that should be completed by a trained DIYer only when you're confident enough to follow the right procedure for your specific make and model of vehicle. You can complete the task quickly and accurately with a complete repair manual for your vehicle. If you're not comfortable installing the ignition cylinder on your own it is possible to 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 is a mechanical piece that is fitted to your key and allows it to rotate and start your car. It's located inside the ignition switch, which locks the ignition and reads the anti-theft code to authorize key turning. The cylinder for the ignition lock is susceptible to wear and can eventually fail, leading to problems with the power supply to your vehicle or making it hard to insert and remove the key.
The most common indications that a car's lock cylinder is about to go bad include difficulty starting your vehicle or finding locations where the key is stuck when you attempt to turn it. These are usually a sign that the cylinder is in need of be replaced. You might even notice a warning light flashing on your dashboard to signal the possibility of a failure.
As the cylinder ages it is likely to be damaged through wear and wear and tear. This could cause the pins and wafer tumblers to wear out and break and stop the ignition of your car from working. The ignition could still function in certain situations if you move it around. However, this could indicate that something is wrong.
You can test the cylinder of your ignition and determine whether the cylinder or 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 are unable to detect any voltage, the module and switch are likely to require replacement.
The replacement of the ignition cylinder usually costs between $200 and $300 and it's generally recommended to hire an experienced mechanic complete the task. car ignition switch repair 's not easy due to the fact that you may need remove other components such as the steering column, in order to get to the ignition cylinder. Depending on the model of your vehicle, the replacement procedure can be accompanied by the need to disable the airbag system, and then you'll need to reprogram your key to work with the new cylinder. This can be done at a dealer however, you can also learn how to do it yourself with the appropriate tools and directions.