What Causes the Car Ignition Lock Cylinder to Not Turn?
1 Answers
If the car lock cylinder won't turn, it indicates either a problem with the lock cylinder or the steering wheel being locked. First, check the specific reason why the lock cylinder isn't turning. If the lock cylinder is stiff or the key is stuck, you can use a rust remover by spraying it into the keyhole and then moving the key back and forth. Steering Wheel Lock: This is a common anti-theft feature in cars. In this case, don't force the key. The driver should gently turn the key with their right hand while lightly turning the steering wheel with their left hand to align the steering lock's teeth. If it still doesn't turn, try using a spare key. If neither key works, it indicates a problem with the lock cylinder, which should be replaced. The main function of a lock cylinder is to transmit torque from the head, which then drives other parts of the lock, allowing it to open and close. Normally, when the key is inserted, the lock cylinder's pin should drop, aligning all parts on the same plane, enabling the lock cylinder to turn. When the key is removed, the pin pops back up, preventing the lock cylinder from turning. Detailed Cause Analysis: The steering wheel has an ignition switch assembly, with one half being the lock cylinder and the other half the base. If the base is faulty, it must be replaced. If the base lacks lubrication, you can try spraying dashboard wax. The lock cylinder may not turn due to key wear, where the key has become smaller than its original size. When the key is worn to a certain extent, inserting it won't fully lower the lock cylinder's pin, causing misalignment and preventing the lock cylinder from turning. If the issue is due to key wear, consult a professional locksmith to create a larger-sized key based on the worn one.
