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How to Repair an Ignition Lock Cylinder

If your car's key won't turn, it's time to replace the ignition lock cylinder. In contrast to the switch, which is the electrical component of the ignition system, which sends energy to the engine of your car the lock cylinder is the mechanical tumbler your key slides into.

Over time, "wafers" can break or become worn out. Using WD-40 or graphite may temporarily resolve the issue, but replacement is the only way to fix it permanently.

Eliminating the Steering Column

Modern cars do not have steering column locks. Instead, they use a key that is used to start the vehicle by pressing and turning an on the dashboard panel. This newer system works much better and is simpler than the old lock-cylinder method. Certain older vehicles still use the old lock cylinder. If this part fails, you may need to replace it in order 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 covering the lower and upper parts of the steering column. This will allow you access to the area around the steering column.

You will find 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. Based on the year of your car, you might have 3 or 4 small flat head screws that secure the plastic cover that covers the turn signal switch in place. Take these screws off and put them aside.

To get to the lock cylinder you will need to take off the signal/wiper unit. This requires the use of a specific tool or do it with an object of metal such as a cold chisel. A locksmith can also use a 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 call a locksmith for assistance.

A locksmith can employ a shear tool to take off the lock cylinder, or they can make use of a torch to cut the pin, then shave it down to take it off. They can re-key your ignition cylinder so that it matches the keys you already have. This will save you money on the purchase of a new ignition.

Replace the Ignition Cylinder

The ignition cylinder is a cylindrical mechanical component which houses and secures the key in your vehicle. The cylinder fits the key and "reads" the anti-theft codes to allow or deny starting of your vehicle. The cylinder wears down over time. It can also be bent or damaged. If this occurs, the cylinder may require replacement to allow your vehicle to start.

A damaged or worn cylinder can cause problems 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 an extra key, use it inside the lock. You might be able make the cylinder more pliable using graphite or WD-40, but this method is only effective for a limited time.

If you have a new key you can replace the ignition cylinder and follow the steps outlined above to install it. When installing the new ignition cylinder, make sure it is properly placed within the flange on the steering column tube and is aligned correctly with the keyway on the shroud of the steering column. If you are unsure of the correct alignment of the cylinder, check your car ignition key replacement's repair 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 has been fully seated into the cylinder. If your vehicle has an anti-theft system, you will have to perform the anti-theft relearn procedure to programme the new ignition cylinder to your key.

Some experts suggest that you hire a professional to replace your ignition cylinder. This is due to the fact that it's often necessary to disable the airbag in the steering column for access to the cylinder. The replacement may require removing the steering wheel and the ignition covers. For these reasons, this is a job that should be left to an experienced mechanic. They will be able remove the cover on your steering wheel and install a brand new ignition locking cylinder inside your vehicle. They'll also be able verify that the ignition lock cylinder is programmed with your key and that it begins to work properly when you insert it.

Installing the Ignition Cylinder

Although cylinders for ignition locks are becoming less necessary in modern vehicles due to advancements in push-to-start and remote start systems, they are still common on older cars. If your ignition switch or key seems to be stuck, or you're having trouble starting the vehicle the problem could be due to a malfunctioning ignition lock cylinder may be the cause. It's simple to fix your vehicle's problem by replacing the cylinder of the ignition key won't turn lock.

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

The pins on cylinders for ignition locks move up and down, which allows your key to slide and rotate inside the cylinder. Every movement of the cylinder and key creates a little friction that helps keep the key in place, but over time, these small movements can cause the tumblers on the wafer to wear down. When the tumblers are worn down and the key is no longer able to slide into the cylinder, it will be unable to slide into the cylinder or rotate it.

A damaged ignition cylinder is usually the first sign of trouble in most vehicles. The key can also get stuck and be difficult to insert into or remove from the ignition lock cylinder. These are indications that you need to replace the ignition lock cylinder as fast as possible.

Replacing your ignition cylinder is not difficult, but it is something that should be handled by a professional do-it-yourselfer if you're confident enough to follow the proper procedure for your specific brand and model of vehicle. You can complete the job quickly and accurately by using a complete repair manual for your vehicle. If you're not comfortable installing the ignition lock repair cylinder yourself, you can have one of our ASE-certified mobile ignition lock repair services mechanics complete the work for you at a convenient time and place.

Test the Ignition Cylinder

The ignition lock cylinder, also known as the ignition lock cylinder, is a mechanical device that fits your key to allow it to turn and start your car. It is mounted inside the ignition switch which locks the ignition and reads the anti-theft codes to allow key turning. The cylinder for the ignition lock is susceptible to wear and can eventually fail, causing issues powering your vehicle or making it difficult to insert and remove the key.

The main signs that a car's lock cylinder is about to go bad include difficulty starting your vehicle or finding places where the key gets stuck when you attempt to turn it. These are usually an indication that the cylinder needs to be replaced. In some cases, you might even notice a warning light on your dashboard, which signals an imminent failure.

As the cylinder ages, it can become damaged by corrosion or simply wear and tear. This can cause the pins and tumblers to wear down and break, preventing the ignition of your car from unlocking. In some cases, the ignition will still work if you move it into different positions but this is a warning indication that something is wrong.

You can test your ignition cylinder to determine whether it's worn-out or if the key is bent or damaged. If you have a multimeter, you could back-probe the module's red connection and the ignition coil's battery terminal to determine if there's any voltage. If you don't find any, then the module and switch are likely to require replacement.

It is best to engage a professional mechanic to repair the ignition cylinder as it could cost between $200 and $300. The process is made more complicated by the fact that you may need to remove other components to access the cylinder for ignition, such as the steering column. Depending on your vehicle the procedure for replacing it may be accompanied by the need to disable the airbag system, and you'll need to reprogramme your key to work with the new cylinder. This is usually handled by a dealer. However, you could do it yourself if you have the proper tools and the right instructions.