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How to Repair an Ignition Lock Cylinder

If your car's keys won't turn it's time to change the ignition key replacement lock cylinder. Contrary to the switch which is the electrical portion of the ignition system that sends energy to the engine of your car The lock cylinder is the mechanical tumbler that your key can slide into.

Over time they "wafer" tumblers will wear out or break. WD-40 and graphite are able to temporarily solve the problem however, replacing the tumblers is the only solution.

Removing the steering column

Most modern cars no longer use a steering column lock cylinder. Instead, they use keys that can be used to start the vehicle by pressing and turning a switch on the dashboard panel. This newer system works much more efficiently and is less complicated than the older lock-cylinder method. However, there are older cars that still utilize the traditional ignition lock cylinder. If this part is damaged, it might be required to replace it in order to get the car started. This isn't a task for the beginner and is best left to an experienced professional.

Remove the trim panels that cover the lower and upper column of the steering with a screwdriver. This will allow you to access the area around your steering column.

On the side of the steering column closest to the driver, you will find an Allen head bolt that holds the assembly of the wiper and signal. Unscrew this bolt and place it aside. Based on the year of your car, you might have three or four small screws with a flat head that hold the plastic cover over the turn signal switch in place. Unscrew these and set them aside.

To access the lock cylinder, you'll have to take off the wiper/signal unit. This will require the use of a special tool or you can ghetto perform the task using a piece of metal like a cold chisel. Locksmiths can also utilize an instrument to remove bolts.

If you can't insert the key into the ignition key replacement switch, the lock cylinder may be stuck. You can try inserting the key, then moving it to the ACC position to release the pin on the lock cylinder, or you can call a locksmith for help.

Locksmiths can use a shear tool to take off the lock cylinder. They can use a torch to cut the pin and then shave the pin to remove it. They can re-key the cylinder to match your existing keys and will save you the cost of a new ignition cylinder.

Replace the Ignition Cylinder

The ignition Cylinder is the mechanical cylinder which houses and locks your car's key. The cylinder fits the key and "reads" anti-theft code to allow or denial of the starting of your vehicle. The cylinder wears down over time. It could also be bent or broken. In this instance you'll need to replace the cylinder in order to get your car started.

A damaged or worn cylinder may cause issues when turning the key, or the ignition switch not moving into the ACC position or RUN, or a warning lamp to appear on the dashboard. If you have a spare, consider using it inside the lock. You may be able to use graphite or WD-40 to adjust the cylinder's settings, but this is only effective for a brief period of period of time.

Replace the ignition cylinder lock repair cylinder if you have a replacement key. Follow the steps above to install the new ignition cylinder. When installing the new ignition cylinder, make sure it is properly installed in the flange on the steering column tube and is aligned correctly with the keyway on the shroud of the steering column. If you're unsure about the proper alignment of the cylinder, refer to your vehicle's repair manual or an automotive expert.

After the cylinder has been installed then turn the key to the ACC or RUN position. Listen for the click to confirm that the ignition switch is fully seated into the cylinder. If your vehicle is equipped with an anti-theft device, you will need to perform the anti-theft relearn procedure for the new ignition cylinder to program it to your key.

Some experts recommend having a professional replace the ignition cylinder, as it is often required to shut off 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 this job to a mechanic with experience. They'll be able to remove the steering wheel cover and install a new ignition locking cylinder into your car. They'll also be able to ensure that the ignition lock cylinder is programmed with your key, and that it will start correctly when you insert it.

Installing the Ignition Cylinder

Although ignition lock cylinders are becoming less important in modern vehicles due to advancements in remote start and push-tostart systems, they're prevalent on older vehicles. If your ignition switch or key seems to be stuck or you're having difficulty starting your car it's possible that a damaged ignition lock cylinder could be to blame. It's simple to fix your car's issue by replacing the ignition lock cylinder.

The ignition cylinder is the mechanical portion of the system that is inserted into the ignition and key replacement switch in your car and sends power to the rest of the engine. While many people confuse the term "ignition switch" with the ignition cylinder, they are actually two separate parts. The switch is an electronic component that connects to the computer in your car to send signals to start the engine when you turn the ignition key.

The pins on cylinders for ignition locks move upwards and downwards, allowing your key to move and rotate within the cylinder. Each movement of the cylinder and the key creates a tiny friction that keeps the key in place, but over time, these small movements could cause the wafer tumblers to wear down. When the tumblers wear 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.

A worn-out ignition cylinder is usually the first indication of trouble in most vehicles. The key can also become stuck and difficult to insert into or remove from the ignition lock cylinder. These are indications that you need to replace your ignition lock cylinder as fast as you can.

Replacing your ignition cylinder is not difficult, but it's an undertaking that should be done by a trained DIYer only if you're confident enough to follow the correct procedure for your particular make and model of vehicle. You can do the job quickly and correctly by using a complete repair manual for your vehicle. If you're not confident installing the ignition cylinder on your own, you can have one of our ASE-certified mobile mechanics complete the job for you at a convenient time and location.

Test the Ignition Cylinder

The ignition lock cylinder, also referred to as the ignition lock cylinder, is a mechanical component that fits your key to permit it to turn and start your vehicle. It's located inside the ignition switch that locks the ignition and reads anti-theft codes to permit the key to turn. The cylinder that locks the ignition is susceptible to wear and may eventually fail, leading to issues powering your vehicle or making it difficult to remove and insert the key.

The most common indicators that a lock cylinder is preparing to go bad include difficulty starting your car or locating places where the key gets stuck when you try to turn it. These signs usually mean that the cylinder is worn down and requires replacement. In some instances, you might even notice an alert light on your dashboard that signals an imminent failure.

As the cylinder age it is prone to being damaged by corrosion or wear and tear. This can cause the pins and wafer tumblers to wear down and break or damage, preventing your Car ignition system Repair's ignition from unlocking. In certain instances, the ignition will still function if you jerk it into different positions but this is a dangerous sign that something could be wrong.

You can test the cylinder of your ignition to determine 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 of the module and the battery terminal of the ignition coil. If you don't find any, the switch and module likely need replacing.

It is recommended to hire an expert mechanic to repair the ignition cylinder as it can cost between $200 and $300. The process is made more complicated by the fact that you could have to take other parts to access the ignition cylinder, including the steering column. The replacement process may require you to turn off the airbag system, and then reprogram your key to work with the new ignition cylinder. It's usually done by a dealer. However, you could do it yourself if have the right tools and the right instructions.