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How to Repair an Ignition Lock Cylinder

If your car key isn't turning, it's time to change the ignition lock cylinder. The lock cylinder is a tumbler made of mechanical that your key slides into, and not the switch which is an electrical part of the ignition system.

Over time, "wafers" can break or become worn out. WD-40 and graphite are able to temporarily solve the problem however, replacing the tumblers is the only way to fix it.

chrome_trhg3QMQrz.pngRemoval of the Steering Column

Most modern cars no longer utilize a steering column lock cylinder. They use a key to start the car by pressing and turning a switch in the dash panel. This modern system is easier and more efficient than the traditional lock cylinder method. However, there are some older vehicles that utilize the traditional ignition lock cylinder. If this component fails, it may be necessary to replace it to start the car. This is a task that should be left to experts.

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

On the side of the steering column that is closest to the driver, you will find an Allen head bolt that holds the signal and wiper assembly to the column. Unscrew this bolt and place it aside. Depending on the year of your car, you may have 3 or 4 small screws with a flat head that hold the plastic cover over the turn signal switch. Unscrew them and put them aside.

To access the lock cylinder, you will need to dismantle the wiper/signal assembly. This will require the use of a special tool or to do it using a piece of metal like a cold chisel. Locksmiths can also make use of a bolt removal kit.

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

Locksmiths can use a shear tool to take off the lock cylinder or they can make use of a torch to slit the pin and 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 an entirely new ignition.

Replacing the Ignition Cylinder

The ignition cylinder is the mechanical cylinder that houses and locks your car's key. The cylinder "reads" the anti-theft code and fits your key to turn on or off your car. The cylinder is susceptible to wear and tear over time. It can also break or get bent. In this situation you'll need replace the cylinder to get your car started.

Signs of a damaged or worn cylinder are issues with turning your key, or the ignition switch not advancing 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 may be able to use some WD-40 or graphite to tweak the cylinder but this only works for a limited period of time.

If you've got a new key to replace the ignition cylinder, and follow the steps outlined above to install it. Install the new ignition cylinder by making sure it's properly placed into the steering column tube flange and aligned with keyway on the shroud. Consult your car's manual or an expert to make sure that the cylinder is aligned correctly.

Once the cylinder has been installed and the ignition switch is turned to ACC or RUN. You should hear a click that indicates the ignition switch is fully set inside the cylinder. If your car has an anti-theft system, you will need to follow the anti-theft relearn process to program the new ignition cylinder into your key.

Some experts recommend that you have a professional replace your ignition cylinder. This is due to the fact that it is often necessary to disable the airbag on the steering column in order for access to the cylinder. The replacement may require removing the steering wheel and the ignition covers. This is why it's recommended to leave this job to a professional mechanic with experience. They'll be able to take off the cover for your steering wheel and install a brand new ignition locking cylinder into your vehicle. They'll also be able to ensure that the ignition lock cylinder is programmed with your key, and that it is properly started when you insert it.

Installing the Ignition Cylinder

Although cylinders for ignition locks are becoming less essential in modern vehicles because of advancements in remote start and push-tostart systems, they're widespread on older cars. If your car's ignition lock repair switch or key seems to be stuck, or if you're experiencing difficulty starting your vehicle it's possible that a damaged ignition lock cylinder may be the cause. It's easy to fix the issue by replacing the ignition lock cylinder.

The ignition cylinder is a mechanical part of the system which connects to the ignition switch in your car and provides power to the rest the engine. While many people confuse the term "ignition switch" with the ignition cylinder, they are actually two separate parts. The switch is the electrical portion that connects to your car's computer and transmits signals to activate the motor when you turn the ignition key.

The pins on the cylinders of ignition locks move upwards and downwards, permitting your key to slide and rotate inside the cylinder. Every movement of the key and cylinder creates friction, which keeps the key in position. However, as time passes, the wafer tumblers can wear out. When the tumblers have worn down, your car's key will not be able to slide into or rotate 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 can become stuck and become difficult to insert or remove from the cylinder. These are all signs that your ignition lock cylinder should be replaced as soon as is possible.

It's not difficult to change the ignition cylinder, but you should only do it if you are confident that you will follow the correct procedure for your specific make and model. You can do the job quickly and correctly with a complete repair ignition lock Cylinder manual for your vehicle. If you are not comfortable installing the ignition cylinder yourself it is possible to have one of our ASE-certified mobile mechanics perform the work for you at a time and location.

Testing the Ignition Cylinder

The ignition lock Cylinder is a mechanical piece that is fitted to your key and permits it to turn and start your car. It is inserted into the ignition switch which locks the ignition and reads the anti-theft codes to allow the key to turn. The ignition lock cylinder can wear out and eventually fail. This can cause issues with the power of your vehicle or make it difficult to insert and remove keys.

The most common signs that a car's lock cylinder is about be damaged is having trouble starting your vehicle or finding positions where the key gets stuck when you try to turn it. These issues are typically a sign that the cylinder is in need of be replaced. You might even see a warning light flashing on your dashboard, signalling an imminent failure.

As the cylinder ages it may be damaged due to corrosion or wear and tear. This can cause the pins and tumblers to wear down and break and prevent the ignition of your car from working. In some instances, the ignition will still work if you move it around however this is a dangerous indicator that something is wrong.

You can test your ignition cylinder to see whether it's worn-out or if the key has been bent or damaged. You can test with a multimeter if there's voltage between the red wire connection of the module and the battery terminal of the ignition coil. If you are unable to detect any voltage, the module and switch will most likely need to be replaced.

It is best to engage an expert mechanic to repair the ignition cylinder, since it can cost anywhere between $200 to $300. It can be complicated due to the fact that you may need to remove other components, such as the steering column, to access the ignition cylinder. The replacement process may require you to deactivate the airbag system, and then reprogram your key to work with the new ignition cylinder. This can be done at an authorized dealer, but you can learn how to do it yourself with the appropriate tools and directions.

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