Ten Repair Ignition Lock Cylinder-Related Stumbling Blocks You Shouldn't Post On Twitter
How to Repair an Ignition Lock Cylinder
If your car's key will not turn, it's time to replace the ignition lock cylinder. In contrast to the switch that is the electrical part of the ignition system, which sends power to your vehicle's engine the lock cylinder is the mechanical tumbler that your key slides into.
Over time, "wafers" can break or wear out. Utilizing WD-40 or graphite can temporarily resolve the issue, but replacement is the only way to fix it permanently.
Eliminating the Steering Column
Modern cars do not use steering column locks. Instead, they use a key that is used to start the vehicle by pressing and turning the switch on the dashboard panel. This newer method is simpler and more effective than the old lock cylinder method. Certain older vehicles still use the old lock cylinder. When car ignition lock fails, you may require replacing it in order to start the vehicle. This isn't a task for the beginner and is best left to professionals.
Using a screwdriver, remove the fasteners that hold the trim panels that surround the lower and upper steering column. This will allow you access to the area surrounding the steering column.
You will find an Allen head bolt on the side of the steering wheel closest to the driver. It keeps the signal unit and wiper in the correct position. Unscrew the bolt and put it aside. Depending on the year of your car, you may have 3 or 4 small screws with a flat head that secure the plastic cover that covers the turn signal switch in place. Unscrew them and put them aside.
In order to get at the lock cylinder, you'll need to remove the wiper/signal assembly. You can make use of a specific tool to remove it or ghetto it with the help of a piece of metal, for example a cold-chisel. Locksmiths will also be capable of using a shear bolt removal kit.
If the key can't be inserted into the ignition switch, it's likely that the lock cylinder is stuck. You can try inserting the key, then moving it to the ACC position to release the lock cylinder pin or call an expert locksmith for assistance.
A locksmith can use a shear cylinder removal tool or they can cut the pin off of the lock cylinder using an electric torch, and then shave it to take it off the lock. They can also re-key your ignition cylinder so that it matches the keys you already have. This will save you money on a new ignition.
Replacing the Ignition Cylinder
The ignition cylinder is a cylindrical mechanical part that houses and secures the key in your vehicle. The cylinder is affixed to the key and "reads" the anti-theft code to permit or block the start of your vehicle. Over time the cylinder will wear out. It may also become bent or broken. If this occurs, the cylinder will have to be replaced to allow your vehicle to start.
A damaged or worn-out cylinder can cause problems turning the key, or cause the ignition switch to not move into the ACC position or RUN, or a warning lamp to show up on the dashboard. If you have a spare, try using it inside the lock. You might be able smooth the cylinder using graphite or WD-40, however this method only works for a certain amount of 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, ensure it is seated in the flange on the steering column tube and is properly aligned with the keyway on the shroud of the steering column. Refer to the car's manual or an expert to confirm that the cylinder is aligned correctly.
Once the cylinder has been installed, turn the ignition key to ACC or RUN. You should hear a click confirm that the ignition switch is fully seated into the cylinder. If your vehicle has an anti-theft system, you'll need to perform the anti-theft relearn procedure for the new ignition cylinder in order to program it to your key.
Some experts recommend hiring a professional to replace the ignition cylinder since it is typically required to shut off the airbag in the steering column to gain access to the cylinder. The replacement process will likely require removing the steering wheel and the ignition covers. Because of this, it is a task best left to a professional mechanic. They will be able remove the cover on your steering wheel and install a brand new ignition locking cylinder into your car. They'll also ensure the ignition lock cylinder is programmed with your key and that it starts properly when you insert it.
Installing the Ignition Cylinder
Although ignition lock cylinders are becoming less essential in modern vehicles due to advances in push-to-start and remote start systems, they're widespread on older cars. If your ignition switch or key seems to be stuck, or if you're having difficulty starting your car, a defective ignition lock cylinder could be to blame. Luckily, it's relatively easy to replace the ignition lock cylinder and fix the problem.
The ignition cylinder is the mechanical portion of the system that is inserted into the ignition switch in your car and sends power to the rest of the engine. Many people confuse the term "ignition switch" with the ignition cylinder, they're two distinct components. The switch is the electrical portion that connects to the computer in your car and sends signals to activate the motor when you turn the key.
The pins on the cylinders of ignition locks move up and down, which allows your key to slide and rotate inside the cylinder. Each movement of the cylinder and the key creates a tiny friction that helps keep the key in place, but over time, these tiny movements can cause the wafer tumblers to wear down. If the tumblers get worn out, the key will be unable to slide into the cylinder or rotate it.
The first indication of trouble is usually a worn out ignition coil in most cars. The key could also become stuck and 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 is possible.
Replacing the ignition cylinder on your vehicle isn't difficult, but it is an undertaking that should be done by a skilled do-it-yourselfer only if you're able to follow the correct procedure for your specific make and model of vehicle. A full repair manual for your vehicle can help you get the job done quickly and correctly. If you're not confident installing the ignition cylinder on your own You can let one of our ASE-certified mobile mechanics perform the work for you at a convenient time and place.
Testing the Ignition Cylinder
The ignition lock cylinder, also known as the ignition lock cylinder is a mechanical component that fits your key in order to enable it to turn and start your car. It is inserted into the ignition switch, which locks the ignition and reads the anti-theft number to authorize the key to turn. The cylinder that locks the ignition will wear out and eventually fail. This could cause issues with the vehicle's power supply or make it difficult to insert and remove keys.
The main indicators that a lock cylinder is preparing to fail is difficulty starting your vehicle or finding positions where the key gets stuck when you try to turn it. These signs usually mean that the cylinder is damaged and needs replacement. You might even notice a warning light flashing on your dashboard, signalling the possibility of a failure.
As the cylinder ages, it may be damaged by corrosion or wear and tear. This can cause the pins and tumblers to wear out and break, preventing the ignition of your car from unlocking. In some cases, the ignition will still work if you move it around, but this is a dangerous indicator that something is wrong.
You can check your ignition cylinder and see if the key or cylinder is damaged or worn out. You can use a multimeter to determine 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 probably need to be replaced.
Replacing the ignition cylinder typically costs between $200 and $300 and it's usually best to have an expert mechanic do the job. It can be complicated because you may have remove other parts, such as the steering column, in order to reach the ignition cylinder. The replacement procedure may also require you to disable the airbag system, and then reprogram your key in order to work with the new ignition cylinder. This is usually handled by a dealer. However, you can do it yourself if have the proper tools and instructions.