On our 83 245, in the morning at cold start up , the idle seems to surge up and down, up and down, sometimes stalling on the down side. then you hear the click somewhere,from in the console or what have you, then idle is fine.. Also seems to do this on a warm sitting motor that is not completly cold. I have cleaned throttle body, also replaced fuel pump, because it was the original pump with 350,000 on it... so I am stumped.. any ideas would be great.... Bear