won't start on 2004 Ford Explorer

I have a 2004 for explorer, it wouldn't start the other day. I bought a new batter and it still wouldn't start. They said it was something to do with the alarm system, it wasn't recognizing the key. It would have to go to a ford dealer ship. Are they expensive do you know, or what can I do?

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1 answer
Usually there is a chip on the key that wears and the ignition switch won't recognize the key, call your local ford dealer parts dept and tell them whats happening and ask them how much to cut you a new key.