hi, either your starter solenoid, the thing the battery + cable connects to, or the starter itself is bad. Change the solenoid out first, it's not very expensive. and basically a 5 minute job. Next, check, and clean, EVERY electrical connection you see or find. You are dealing with a 30+ year old car. How old are you? and how much do you know about cars? Not trying to pry, but it would help us to help you if we knew, what you are, and are not , familiar with. Eagles are fairly complex machines, and they are very rewarding IF you know your way around them. Don't give up, we are here to help. god luck, gz