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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 cylinder that controls the ignition. Unlike the switch that is the electrical portion of the ignition system, which sends the power to the engine of your vehicle the lock cylinder is the mechanical tumbler your key is able to slide into.

Over time, "wafers" can break or wear out. The use of WD-40 or graphite may temporarily resolve the issue, but replacement is the only permanent solution.

Eliminating the Steering Column

Most modern cars no longer have a steering column lock cylinder. Instead, they have keys that are used to start the vehicle by pressing and turning a switch on the dash panel. This newer system is much simpler and more efficient than the older lock cylinder method. Certain older vehicles still use the old lock cylinder. If this component fails, it may be necessary to replace it to get the car started. This is a task that should be left to experts.

Using a screwdriver, remove the fasteners that hold the trim panels that cover the lower and upper steering column. This will allow access to the area surrounding the steering column.

On the side of the column that is closest to the driver, you'll see an Allen head bolt that holds the signal and wiper assembly to the column. Remove this bolt and place it aside. Depending on your car's year, you may find 3 or 4 small screws with flat heads, which hold the plastic over the turn-signal switch in place. Remove these screws and set them aside.

To access the lock cylinder, you'll have to take off the wiper/signal unit. You can employ a special tool do this or ghetto it using the help of a piece of metal, for example a cold-chisel. Locksmiths are also capable of using the shear bolt removal kit.

If the key can't be put into the ignition switch, it's a sign that the lock cylinder is stuck. Try inserting the key and moving it to the ACC position to press the lock cylinder pin, or call an expert locksmith for assistance.

A locksmith can use a shear cylinder removal tool or cut the pin off of the lock cylinder with torch and then shave it down to take it off the lock. They can re-key the ignition cylinder to ensure it matches the keys you already have. This will save you money on an entirely new ignition.

Replacing the Ignition Cylinder

The ignition cylindrical cylinder is a mechanical part that houses and locks the key to your vehicle. The cylinder "reads" the anti-theft code and then fits your key to start or stop your car ignition replacement. As time passes the cylinder will wear out. It may also become bent or damaged. If this happens, the cylinder will need to be replaced to allow your car to begin.

A damaged or worn cylinder can cause problems turning the key, or the ignition switch to not move into the ACC position or RUN, or a warning lamp to show up on the dashboard. If you have a spare, try using it inside the lock. You might be able make the cylinder more pliable using graphite or WD-40, however this method only works for so long.

If you have a new key, replace the ignition cylinder and follow the instructions above to install it. Install the new ignition cylinder making sure that it is properly fitted into the steering-column tube flange and aligned to the keyway on the shroud. Consult your car's manual or an expert to ensure the cylinder is correctly aligned.

Once the cylinder has been installed and the ignition switch is turned to ACC or RUN. Watch for a click which signifies that the ignition switch has been fully installed in the cylinder. If your vehicle is equipped with an anti-theft system, you'll have to follow the anti-theft relearn procedure for the new ignition cylinder in order to program it to your key.

Some experts recommend having a professional replace the ignition cylinder since it is often required to deactivate the airbag inside the steering column in order to access the cylinder. The replacement process will likely require removing the steering wheel and ignition covers. This is a job that should be left to a skilled mechanic. They'll be able to remove the cover on the steering column and properly install a new ignition lock cylinder in your vehicle. They will also be able ensure that the ignition lock cylinder has been programmed by your key and that it starts correctly when you insert it.

Installing the Ignition Cylinder

While ignition lock cylinders are becoming less important in modern vehicles thanks to advances in remote start and push-to-start systems, they are still widespread on older cars. If you're having difficulty starting your car or the ignition switch is not working it could be due to an issue with your ignition cylinder. It's a good thing that it's fairly easy to replace your car's ignition lock cylinder, and then fix the issue.

The ignition cylinder is the part of the system that is inserted into your car's ignition switch and provides power to the rest of the engine. Many people confuse the phrase "ignition switch" with the ignition cylinder, they are actually two separate parts. The switch is an electrical device that connects with your car's computer system to transmit signals to turn on the engine when you turn the ignition key.

The pins on the cylinders of ignition locks move up and down, which allows your key to slide and rotate inside the cylinder. Every movement of the cylinder and the key creates a tiny friction that helps keep the key in place, but over time, these tiny movements can cause the tumblers on the wafer to wear down. When the tumblers have worn down, your car's key will not be able to slide into or turn the cylinder.

The first indication of trouble is usually a worn-out ignition coil in the majority of cars. The key could be stuck and make it difficult to insert into or remove from the ignition lock cylinder. These are indications that you should replace your ignition lock cylinder as quickly as you can.

It's not difficult to change your ignition cylinder, however, you should only do it if are confident that you can follow the proper procedure for your car's specific model and make. A complete Repair ignition lock cylinder 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 complete the job for you at a time and location.

Testing the Ignition Cylinder

The ignition lock cylinder, also known as the ignition lock cylinder, is a mechanical device that fits on your key to allow it to turn and start your vehicle. It's mounted inside the ignition switch that locks the ignition and reads anti-theft coding to authorize key turning. The cylinder that locks the ignition will wear out and eventually fail. This could cause issues with the vehicle's power supply or make it difficult to insert and remove keys.

The most obvious indicators that your car's lock cylinder is in danger of failing is difficulties in starting it or areas where the key becomes stuck when you turn it. These problems are usually an indication that the cylinder must be replaced. In some instances you may notice an indicator light on your dashboard that indicates an imminent failure.

As the cylinder age it is prone to being damaged by corrosion or wear and tear. This can cause the wafer tumblers and pins to wear out, cause damage or even break, which will stop your car's ignition from functioning. In some cases the ignition may work if you jostle it in different directions, but this is a dangerous sign that something could be wrong.

You can check the cylinder in your ignition and see if the key or cylinder is damaged or worn out. If you own a multimeter, it is possible to probe the module's red wire connection and the ignition coil's battery terminal to see if there is voltage. If you don't find any, the switch and module probably need to be replaced.

The replacement of the ignition cylinder usually costs $200 to $300, and it's usually best to let a professional mechanic perform the job. It can be complicated because you may have remove other parts like the steering column, to get to the ignition cylinder. The replacement process may require you to disable the airbag system and reprogramme your key to work with the new ignition cylinder. This can be done at a dealer however, you can learn how to do it yourself using the appropriate tools and directions.