It's going again...at least for now. Thanks to all for the help.
I'm not sure if this was THE problem, but it was a problem. To you guys that know a lot more about this than I do, do think this was it or should I continue on with the autopsy. Her's what happened: While looking at the firewall plug for looseness ( it was tight), I remembered from my question about the weak lights ( relays came in to fix that this weekend ), it appears that the infamous horn relay is a major intersection in a Chevelle's electrical life contentment. So, I was looking around it for any loose or disconnected wires and, lo and behold, one of the screws that held several wire to one of the relay lugs was very loose allowing the wire lugs to wiggle - a lot. Now I am assuming that electrical connections and wiggle are not coexisting terms and can lead in cases to heat and bad connections. I tightened the screw up, several complete turns, and the car ran just fine. Do ya think that this was the cause - not full voltage to all the operating systems - or just an " oh,by the way" type thing and the culprit is still there - hiding for me to be out on the road - happy and cruisin and then pop and it coasts to a stop....again. Thanks again for your help. Seems I'm gonna owe a lot of people a beer at a Chevelle get together some day. Fine by me. Best regards to all Scott Dallas
