the wire ontop of the rad snapped off should i just satur that wire back ontop????

 

That wire is the coolant level sensor... if you just leave it be your "add coolant" light will always be lit. If you really don't think you need the light then just ground the wire. That's what I did when mine snapped off a while ago , that way the light was turned off.

 

Or you can throw down the $10 for a new sensor...