I know when my main relay went bad, I still heard the damn thing clicking everytime. What some of my symptoms were, it would start fine for the day but when drive it no matter how long or far, if i tried to start it back up it would fire then die in a few seconds. Starting fluid worked for a little while. So did jumpin it. But it would crank strong no matter what it just wouldn't fire. But if you need a picture of a main relay here it is. It's located right above the coin holder thing on the driver's side.
http://cgi.ebay.com/ebaymotors/ws/eB...spagename=WDVW