Can I spray wd40 in my ignition switch?

Then, how do you lubricate an ignition switch?

How to Lubricate an Ignition Key Lock

1. Soak your key in water to clean the key off.
2. Spray the key with a lubricant like WD-40, and be sure the entire key is covered with a light coat.
3. Spray the lock cylinder with the lubricant.
4. Insert the key into the lock and turn it in both directions to spread the lubricant over the cylinder.

Subsequently, question is, how do you test an ignition switch? Put the ignition key into the ignition switch and crank the engine. If the engine cranks, then your ignition switch is obviously working fine. If the engine does not crank, and you hear a "click" when you first turn the key to the "III" position, then your ignition switch is not the problem.

Beside this, what would cause a car key not to turn in the ignition?

The most common reason that a car key will not turn is that the steering wheel has locked. Pull the steering wheel in the direction that has give, and hold it there. Turn the key toward the accessory position while keeping the steering wheel turned. If nothing happens, rock the steering wheel as you turn the key.

Does a new ignition switch come with a key?

The new lock cylinder does come with new keys but you would have to use the original key to open the doors or have all of the lock cylinders on the doors and trunk match the new ignition lock cylinder.