Don's got the idea. If they are really stuck, you can yank them out with the pliers. Just don't break anything off one of them and they will go back. Make sure to cover the engine with a large towel, sheet or blanket. Otherwise, one of the clips is bound to get away from you and end up where it will never be seen again. I can attest to the fact that things that fall into the engine area are usually lost for good.
