[EclipseRST]

Ok first thing to know is the motor turning over? Or are you talking about the starter not even turning the motor over. When you turn the key on does the car try to start but just keeps turning over? If so you need to check if you have Spark and Fuel. If you have those then you need to check compression. If everything is fine and you still cant get it started your timing is off.

Now if it just doesnt turn over, check the batter connection and check the connection of the wires that run to the starter. Make sure everything is grounded good and the power wire to the starter is good and has a good tight connection. Maybe even take some jumper cables and run the black wire to one of the starter bolts and then to the negative battery cable. If that works then you need a better ground to the starter. If not it seems as if your starter could be bad! Good luck.