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How to Repair an Ignition Lock Cylinder

If your car's ignition key isn't turning, it's time to replace the ignition lock cylinder. The lock cylinder is a mechanical tumbler which your key slides into, as opposed to the switch, which is an electrical component of the ignition system.

Over time, "wafers" can break or become worn out. WD-40 and graphite may temporarily resolve the issue but replacing the tumblers is the only option.





The steering column can be removed

Modern cars don't have steering column locks. Instead, they use keys that are used to start the car by pressing and turning the switch on the dash panel. This newer method is easier and more efficient than the older lock cylinder method. Some older vehicles still employ the old lock cylinder. If this part fails, you may require replacing it in order to restart the vehicle. This is not an activity for the beginner and is best left to a professional.

With a screwdriver, take out the fasteners holding the trim panels that cover the lower and upper steering column. This allows you to access the area around the steering column.

On the side of the steering column that is closest to the driver, you'll find an Allen head bolt that pins the wiper/signal assembly in place. Unscrew this bolt and place it aside. Depending on the year of your vehicle you might find three or four small screws with flat heads that hold the plastic that covers the turn signal switch in place. Remove these screws and set them aside.

To access the lock cylinder you will have to take off the wiper/signal unit. You can employ a special tool accomplish this, or ghetto it using the help of a piece of metal, for example a cold-chisel. Locksmiths can also utilize an instrument to remove bolts.

If you are unable to insert the key into the ignition switch, the lock cylinder may be stuck. You can call an locksmith or insert the key into the ignition switch and then move it to the ACC to press the pin of the lock cylinder.

A locksmith can use a shear tool to remove the lock cylinder or they can make use of a torch to cut the pin and then shave the pin to remove it. They can change the cylinder's key to match your current keys and save you the expense of purchasing a new ignition cylinder.

Replacing the Ignition Cylinder

The ignition Cylinder is the mechanical cylinder that houses and locks your car's key. The cylinder is affixed to the key and "reads" the anti-theft code to allow or denial of the starting of your vehicle. Over time, the cylinder can wear out. It can be bent or broken. If this occurs, the cylinder will need to be replaced in order for your car to begin.

The signs of a damaged or worn cylinder are issues when turning your key or with the ignition switch not moving into the ACC or RUN position, or with a warning light appearing on the dashboard. If you have a spare, you can try using it in the lock. You could try using graphite or WD-40 to fine-tune the cylinder, but this only works for a short period of time.

Replace the ignition cylinder if have an additional key. Follow the instructions above to install the new ignition cylinder. When installing the new ignition cylinder make sure it is properly seated in the steering column tube flange, and that it is correctly aligned with the keyway on the shroud for the steering column. If you're unsure about the proper alignment of the cylinder, consult your car's repair manual or an automotive expert.

After the cylinder has been installed then turn the key to the ACC or RUN position. You should hear a click confirm that the ignition switch has been fully seated into the cylinder. If your vehicle is equipped with an anti-theft system, you'll have to follow the anti-theft relearn process for the new ignition cylinder in order to program it to your key.

Some experts suggest that you have a professional replace your ignition cylinder. This is because it is often necessary to disable the steering column airbag in order to access the cylinder. Furthermore, the replacement will likely require removal and replacement of the steering wheel and ignition covers. Because of this, it is a task best left to a professional mechanic. They'll be able to take off the cover on your steering wheel and install a new ignition locking cylinder into your car. They'll also be able to make sure that the ignition lock cylinder is programmed with your key and is working correctly when you insert it.

Installing ignition lock repair

While ignition lock cylinders are becoming less necessary in modern vehicles thanks to advances in remote start and push-to-start systems, they're prevalent on older vehicles. If your car's ignition switch or key seems to be stuck, or if you're experiencing difficulty starting your vehicle, a defective ignition lock cylinder could be to blame. It's a good thing that it's fairly easy to replace the ignition lock cylinder, and then fix the issue.

The ignition cylinder is the part of the system that is inserted into the ignition switch of your car and supplies power to the rest of the engine. The ignition switch and the ignition cylinder are two separate components. 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.

Pins on ignition lock cylinders move upwards and downwards, which allows your key to move and rotate within the cylinder. Each movement of the key and cylinder creates friction, which keeps the key in place. However, over time the wafer tumblers may wear out. If the tumblers get worn out the key will be unable to slide into the cylinder or rotate it.

The first sign of trouble is usually a worn ignition coil in most cars. However, the key could also begin to stick and become difficult to remove or insert from the ignition cylinder. These are indications that you should replace the ignition lock cylinder as fast as you can.

It's not a big deal to replace your ignition cylinder, but you should only do it if are confident that you can follow the correct procedure for your vehicle's specific model and make. A full repair manual for your vehicle will assist you in getting the job done efficiently and correctly. If you're not confident installing the ignition cylinder on your own, you can have one of our ASE-certified mobile mechanics perform the job for you at a time and place.

Testing the Ignition Cylinder

The ignition lock cylinder is a mechanical component that is affixed to your key and allows it to rotate and start your vehicle. It's affixed to the ignition switch, which locks the ignition and reads the anti-theft code to allow the key to turn. The cylinder that locks the ignition can wear out and eventually fail. This can cause problems with your vehicle's power or make it difficult to insert and remove keys.

The most obvious indications that your car's lock-cylinder is about to fail is difficulty in starting it, or locations where the key is caught when you turn it. These issues are typically an indication that the cylinder must be replaced. In some instances, you might even notice a warning light on your dashboard that indicates an imminent failure.

As the cylinder age it may be damaged due to corrosion or wear and wear and. This can cause the wafer tumblers and pins to wear down, cause damage or even break, which could stop your car's ignition from functioning. The ignition may still work in some cases when you move it around. However, this could be a sign that something is wrong.

You can examine the cylinder in your ignition and see whether the cylinder or the key is damaged or worn out. You can use a multimeter to check whether there is a voltage difference between the red wire connector of the module and the battery terminal of the ignition coil. If you don't find any or no voltage, then the module and switch probably 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 task. 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 procedure for replacing it may be accompanied by the need to disable the airbag system, and you'll have to reprogramme your key to work with the new cylinder. This is typically done at an authorized dealer however, you can also learn how to do it yourself using the proper tools and instructions.