How to diagnose an ignition key that won't turn

If the car key won't turn in the ignition and the steering wheel is locked, this is an easy fix. Try to shake the steering wheel and check the battery.

It can be frustrating when you put the key in your car's ignition and it refuses to turn. Your mind is racing with all the possible options for what could go wrong, but thankfully, most ignition key problems are not only common, but can be fixed quickly. There are three main factors to keep in mind when looking for reasons why your key won't turn, and with some troubleshooting, these tips can help you get started safely and get going in just a few short steps.

The three main reasons why the ignition key won't turn are: problems with related components, problems with the key itself, and problems with the ignition lock cylinder.

• Functions: Always make sure your parking brake is on to keep your vehicle safe when performing these steps.

Various components related to the ignition system are the most common culprits for your car key not being able to turn the ignition. Fortunately, they are also the fastest to identify and fix. There are three components to be aware of:

Component 1: Steering wheel. In many vehicles, when the key is removed, the steering wheel is blocked from turning. Sometimes this lock can cause the steering wheel to get stuck, which in turn means the car key is also stuck and unable to move to free it. "Wobbling" the steering wheel from side to side while trying to turn the key can release the lock pressure and allow the key to turn.

Component 2: Gear Selector. Some vehicles do not allow the key to be turned unless the vehicle is in either park or neutral. If the vehicle is parked, shake the shift lever slightly to make sure it is in the correct position and try turning the key again. This only applies to vehicles with automatic transmission.

Component 3: Battery. If the car's battery is dead, you will often notice that the key won't turn. This is not uncommon in more expensive vehicles, which often use more sophisticated electronic ignition systems. Check battery life to be sure.

Reason 2 of 3: Problems with the key itself

Often the problem is not in the relevant components of the car, but in the car key itself. The following three factors may explain why your key cannot turn in the ignition:

Factor 1: bent key. Bent keys can sometimes get caught in the ignition cylinder but won't line up properly inside so the car can start. If your key looks bent, you can use a non-metal mallet to gently flatten the key. Your goal is to use something that won't damage the key, so this should ideally be made from rubber or wood. You can also place the key on a piece of wood to soften the blow. Then tap the key very gently until it is straight and try to start the car again.

Factor 2: worn key. Worn out keys are actually very common, especially on older cars. If your car key is worn out, this will prevent the pins inside the cylinder from dropping properly and starting the car. If you have a spare key, try using that first. If you don't, you can get a spare key by writing down your Vehicle Identification Number (VIN), which is located on the windshield on the driver's side or inside the door jamb. You will then need to contact your dealer to have a new key made.

• Some newer vehicles have key codes attached to the key set. If your key is worn out and you need a new one, you can provide this code to your dealer instead of the VIN.
  
  

Factor 3: Wrong Key. Sometimes this is a simple mistake and the wrong key is inserted into the cylinder. This most commonly occurs when someone has more than one car key on their keychain. Many keys look the same, especially if they are the same brand. So double check if the correct key is being used to try to start the car.

• If you see that your key is dirty, cleaning it can also help. Cleaning the key itself is also very easy. Use a cotton swab and rubbing alcohol to remove any foreign material that may be stuck to the key. After that, you can try to start the car again.

• Some resources recommend tapping the key with a hammer or other object while it is in the ignition, but this is not recommended due to the high risk of not only breaking the cylinder, but also breaking the key. This can cause part of the key to get stuck inside the cylinder causing more damage.

Cause 3 of 3: Problems with the ignition lock cylinder

The ignition lock cylinder, also known as the ignition lock cylinder, is another area that can cause key turning problems. The following are two of the most common ignition cylinder and key won't turn problems.

Problem 1: Obstacle. An obstruction inside the key cylinder will prevent the key from turning the ignition correctly. Look inside the key cylinder with a flashlight. You will want to look for any obvious obstacle. Sometimes when a key cylinder has completely failed, you will see metal debris inside.

• If you are trying to clean the ignition lock cylinder, always wear safety goggles to protect your eyes from flying particles. Use an electric cleaner or compressed air to clean and follow the precautions and instructions on the can. Make sure your work area is well ventilated. If necessary, you can try to repeat the spraying. If any debris has been successfully removed, the key should go in easier.

Problem 2: Stuck Springs. The pins and springs inside the key cylinder match the unique shape of your key so only your key will work to turn your car on. There may be problems turning the key due to problems with the pins or springs. When this happens, use a small hammer to gently tap on the ignition key. This can help loosen stuck pins or springs. You don't want to hit hard - the goal is to use the faucet's vibration, not force, to help loosen stuck pins or springs. Once they are free, you can try to insert the key and turn it.

The methods listed above are great ways to get your key to turn if it refuses to budge. However, if you are still struggling with key turning issues after trying all of these tips, you should see a mechanic for further diagnosis. AvtoTachki provides certified mobile mechanics who come to your home or office and easily diagnose why your key won't turn and make the necessary repairs.