How can i remove the ignition cylinder on a 98 oldsmobile silhouette?

Call a locksmith. It might cost you a buck or two, but still cheaper than replacing the entire switch.

You will have to purchase a steering wheel puller and remove your steering wheel. Look behind the steering wheel and you will find screws holding the center pad on the wheel. Remove them and unplug any wiring connector. You will find a bolt holding on your wheel. Unscrew the large bolt and then apply your puller to break loose the wheel.

The next step is to ascertain how to release the ignition cylinder. You could probably find that info on Google or purchase a repair manual for a 98 Olds and that will tell you how it is done. You shouldn't require any specials tools for that. Once remove just insert your new cylinder which you will have to also purchase.

It may cost you a few bucks, but it is not as hard as you may think. If you took it to a mechanic it will cost you quite a bit more than doing it yourself.

If you call a locksmith, he will no doubt have to remove the cylinder, and even then I doubt very seriously that he will be able to remove such an item with teeth on it from the cylinder without damaging it. Therefore, save yourself some money and do it yourself.

Call a locksmith. Or you could try pressing a potato into the cylinder. That can help pull things like a saw blade out of the cylinder.