How to Repair an Ignition Lock Cylinder

If your car's keys isn't turning, it's time to change the ignition lock cylinder. In contrast to the switch that is the electrical component of the ignition system that supplies the power to the engine of your vehicle, the lock cylinder is the mechanical tumbler your key slides into.

Over time they "wafer" tumblers will wear out or break. WD-40 and graphite can temporarily solve the problem however, replacing the tumblers is the only way to fix ignition switch it.

Removing the steering column

Modern cars do not utilize a steering column lock cylinder. Instead, they have a key that is used to start the vehicle by pressing and turning the switch on the dash panel. This modern system functions better and is simpler than the lock-cylinder system of the past. However, there are some older cars that still utilize the traditional ignition lock cylinder. If this part fails, it may be required to replace it in order to start the car. This is not an activity for the novice and should be left to professionals.

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 wiper/signal assembly in place. Unscrew this bolt and set it aside. Based on the year of your car, you might have 3 or 4 small screws with a flat head that hold the plastic cover over the turn signal switch in place. Remove these screws and set them aside.

To access the lock cylinder, one will need to dismantle the wiper/signal assembly. This will require the use of a specific tool or you can ghetto to do it using an object of metal such as a cold chisel. Locksmiths can also make use of an instrument to remove bolts.

If you're unable to insert the key into the ignition switch, the lock cylinder may be stuck. You can either contact a locksmith or insert the key into the ignition switch and move it to the ACC to depress the pin of the lock cylinder.

A locksmith can make use of a shear cylinder removal tool or they can cut the pin from the lock cylinder with torch and then shave it down to take it off the lock. They can replace the cylinder's keys to match your existing keys and will help you save the cost of a new ignition cylinder.

Replacing the Ignition Cylinder

The ignition Cylinder is the mechanical cylinder that houses and secures your car's key. The cylinder "reads" the anti-theft code and then fits your key to allow you to start or stop your car. As time passes, the cylinder can wear out. It may also become bent or broken. If this happens, the cylinder will need to be replaced to allow your vehicle to begin.

The signs of a damaged or worn cylinder can be seen in problems with turning the key, or with the ignition switch not advancing into the ACC or RUN position, or a warning light appearing on the dash. If you have a spare, you can try using it inside the lock. You may be able use graphite or WD-40 to tweak the cylinder however, this is only for a limited period of time.

If you have a new key you can replace the ignition cylinder, and follow the steps outlined above to install it. Install the new ignition cylinder making sure that it is properly fitted into the steering-column tube flange and aligned with keyway on the shroud. If you're not sure about the proper alignment of the cylinder, check your car's repair ignition lock cylinder manual or an expert.

After the cylinder has been installed then turn the key to the ACC or RUN position. You should hear a click that indicates that the ignition switch is fully installed inside the cylinder. If your vehicle is equipped with an anti-theft system, you will be required to go through the anti-theft relearn process to programme the new ignition cylinder into your key.

Some experts recommend having a professional replace the ignition cylinder since it is usually necessary to disable the airbag in the steering column to access the cylinder. The replacement will also likely require removing the steering wheel and the ignition covers. This is a job that should be left to an experienced mechanic. They'll be able to take off the steering wheel cover and install a brand new ignition and key replacement locking cylinder in your car. They'll also be able to ensure the ignition lock cylinder is programmed using your key and that it starts properly when you insert it.

Installing the Ignition Cylinder

Even though ignition lock cylinders have been less significant in modern vehicles due to remote start and push-tostart systems, older vehicles still have these cylinders. If your car's ignition switch seems to be stuck, or if you're experiencing difficulty starting your vehicle, a defective ignition lock cylinder may be the cause. It's relatively simple to replace your car's ignition lock cylinder and fix car ignition the issue.

The ignition cylinder is a mechanical component of the system that slides into the ignition switch in your car and provides power to rest the engine. While many people confuse the term "ignition switch" with the ignition cylinder, they're two distinct components. The switch is an electrical device that connects with your car's computer system to send signals to start the engine when you turn the ignition key.

Pins on ignition lock cylinders move up and down, permitting your key to slide and rotate inside the cylinder. Each movement of the cylinder and key creates a small amount of friction that keeps the key in place but over time, these tiny movements can cause the tumblers on the wafer to wear down. When the tumblers are worn down, the key of your car won't be able slide into or turn the cylinder.

The first indication of trouble is usually a worn out ignition coil that is found in the majority of automobiles. However, the key could be stuck and become difficult to remove or insert from the ignition cylinder. These are signs that you should replace your ignition lock cylinder as quickly as possible.

Replacing your ignition cylinder is not difficult, but it's an undertaking that should be handled by a skilled do-it-yourselfer only if you're able to follow the right procedure for your specific brand 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 place that's convenient to you.

Test the Ignition Cylinder

The ignition lock Cylinder is a mechanical piece that is affixed to your key and allows it to rotate and start your vehicle. It is placed inside the ignition switch, which secures the ignition, and reads the anti-theft number to allow key turning. The cylinder for the ignition lock is susceptible to wear and may eventually fail, causing issues powering your vehicle or making it hard to insert and remove the key.

The most obvious indicators that your car's lock cylinder is about to fail are difficulty starting it or finding areas where the key becomes stuck when you turn it. These problems are usually a sign that the cylinder is in need of be replaced. You might even notice an alert light flashing on your dashboard to indicate an imminent failure.

As the cylinder ages it is likely to be damaged by corrosion or wear and tear. This could cause the wafer tumblers and pins to wear out, cause damage or even break, which will make it impossible for your car's ignition to continue functioning. The ignition might still work in certain situations if you move it around. However it could indicate that something is wrong.

You can check the cylinder's ignition to determine whether it's worn out, or the key is bent or damaged. If you own a multimeter, it is possible to back-probe the module's red connection and the ignition coil's battery terminal to determine if there's any voltage. If you do not find any voltage then the switch and module are likely to need to be replaced.

Replacing the ignition cylinder typically costs between $200 and $300, and it's generally recommended to let a professional mechanic perform the job. 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. Depending on the model of your vehicle, the replacement procedure can also require disabling the airbag system, and then you'll need to reprogramme your key to work with the new cylinder. This is usually handled by an agent. However, you can do it yourself if you have the right tools and the right instructions.