How to Repair an Ignition Lock Cylinder

If your car ignition lock's key will not turn, it's time change the ignition lock cylinder. The lock cylinder is a mechanical tumbler that your key slides into, as opposed to the switch which is an electrical part of the ignition system.

Over time over time, these "wafer" tumblers can wear out or break. The use of WD-40 or graphite may temporarily solve the issue but replacement is the only solution that lasts.

The steering column can be removed

Modern cars do not utilize a steering column lock cylinder. They make use of does a new ignition switch require a new key key to start the vehicle by pressing and rotating the switch on the dashboard panel. This modern system works more efficiently and is less complicated than the older lock-cylinder method. However, there are older vehicles that employ the traditional ignition lock cylinder. If this component is damaged, you will need to replace it to be able to start the vehicle. This is a job that should be handled by professionals.

Using a screwdriver, remove the fasteners that hold the trim panels that cover the upper and lower steering column. This allows you to access the area around the steering column.

You will see an Allen head bolt on the side of the steering wheel that is closest to the driver. This bolt holds the wiper/signal unit in position. Unscrew this bolt and place it aside. Depending on your car's year, you may find three or four small screws with flat heads that hold the plastic over the turn-signal switch in place. Remove these screws and set them aside.

To access the lock cylinder, you'll need to dismantle 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 can also make use of the bolt removal kit.

If you're unable to insert the key into the ignition switch, the lock cylinder may be stuck. Try inserting the key, then moving it to the ACC position to release the pin on the lock cylinder, or you can call an expert locksmith for assistance.

A locksmith can employ the shear tool to remove the lock cylinder, or they can make use of a torch to cut the pin and then shave the pin down to remove it. They will be able to replace the cylinder's keys to match your existing keys and save you the cost of a new ignition cylinder.

Replace the auto ignition key replacement Cylinder

The ignition cylinder is the cylindrical mechanical component that houses and locks your car's key. The cylinder is affixed to the key and "reads" the anti-theft codes to permit or block the start of your vehicle. The cylinder wears down over time. It may also become bent or damaged. In this situation, you will need to replace the cylinder in order to get your car running.

A worn or broken cylinder may cause issues when turning the key, or causing the ignition switch to not move into the ACC position or RUN or a warning light to appear on the dashboard. If you have a spare, you can try using it in the lock. You could try using some WD-40 or graphite to tweak the cylinder but this only works for a short period of time.

Replace the ignition cylinder if have a replacement key. Follow the instructions above to install the new ignition cylinder. When installing the new ignition cylinder ensure that it is installed in the flange of the steering column tube and is properly aligned with the keyway on the shroud for the steering column. If you are unsure of the correct alignment of the cylinder, check your car's Repair Ignition Lock Cylinder manual or an expert.

After the cylinder is installed and the ignition switch is turned to ACC or RUN. Listen for the click to confirm that the ignition switch is fully seated in the cylinder. If your vehicle has an anti-theft system, you will need to perform the anti-theft relearning procedure for the new ignition cylinder in order to program it to your key.

Some experts recommend replacing the ignition cylinder, since it is typically necessary to disable the airbag inside the steering column to gain access to the cylinder. Furthermore, the replacement will likely require removing and replacing the steering wheel and ignition covers. This is why it's recommended to leave the job to an experienced mechanic. They will be able remove the cover on your steering wheel and replace it with a new ignition locking cylinder into your vehicle. They will also be able ensure that the ignition lock cylinder has been programmed using your key, and that it will start correctly when you insert it.

Installing the Ignition Cylinder

Although cylinders for ignition locks are becoming less necessary in modern vehicles because of advancements in remote start and push-tostart systems, they are still widespread on older cars. If your ignition switch or key is stuck, or you're having trouble starting the vehicle it's possible that a damaged ignition lock cylinder could be to blame. It's relatively simple to replace your vehicle's ignition lock cylinder and repair the problem.

The ignition cylinder is a mechanical component of the system which connects to the ignition switch of your car and supplies power to the rest the engine. Many people confuse the term "ignition switch" with the ignition cylinder, they're actually two separate parts. The switch is an electrical component that connects to your car's computer to transmit signals to turn on the engine when you turn the ignition key.

Pins on ignition lock cylinders move up and down, permitting your key to move and rotate within the cylinder. Each movement of the cylinder and key creates a tiny friction that keeps the key in place but over time, these tiny movements could cause the wafer tumblers to wear down. When the tumblers are worn down, the key will be unable to slide into the cylinder or rotate it.

The first sign of trouble is usually a worn out ignition coil that is found in the majority of automobiles. However, the key could become stuck and become difficult to insert or remove from the ignition cylinder. These are all signs that the ignition lock cylinder must be replaced as soon as it is possible.

Replacing your ignition cylinder isn't difficult, but it is an undertaking that should be done by a trained DIYer only when you're confident enough to follow the right procedure for your specific brand and model of vehicle. A full repair manual for your car can help you get the job done quickly and correctly. If you're not confident installing the ignition cylinder on your own make one of our ASE certified mobile mechanics do the repair for you at a time and in a location that's convenient to you.

Test the Ignition Cylinder

The ignition lock cylinder is a mechanical component that is fitted to your key and permits it to rotate and start your car. It's mounted inside the ignition switch, which locks the ignition and reads anti-theft coding to authorize key turning. The cylinder that locks the ignition is prone to wear and can eventually fail, leading to problems with the power supply to your vehicle or making it difficult to remove and insert the key.

The most obvious signs that a car's lock cylinder is about fail is difficulty starting your vehicle or finding places where the key gets stuck when you attempt to turn it. These are usually a sign that the cylinder is in need of be replaced. You may even see a warning light flashing on your dashboard to signal an impending failure.

As the cylinder age it can be damaged by corrosion or wear and tear. This could cause the pins and tumblers to wear out, damage or break and stop the ignition of your car from working. In some instances, the ignition will still work if you move it in different directions however this is a dangerous sign that something could be wrong.

You can check the cylinder's ignition to see whether it's worn-out or if the key is bent or damaged. If you own a multimeter, it is possible to back-probe the module's red wire connection and the ignition coil's battery terminal to see if there is any voltage. If you don't see any voltage, then the switch and module likely need replacing.

The replacement of the ignition cylinder usually costs between $200 and $300 and it's usually best to have a professional mechanic perform the job. The process is complicated by the fact that you might have to take other parts to access the cylinder that controls ignition, including the steering column. The replacement process may require you to disable the airbag system, and then reprogram your key to work with the new ignition cylinder. This is typically done at a dealer however, you can learn how to do it yourself using the proper tools and instructions.