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		I have to agree with Argess, could be the coil, had that happen to my 74 Saab EMS, poured cold water over it, and it fired right up, made into Reno brought a new coil, problem solved. Or it could also be the Ballast Resistor (If your Aurora has one?), had the wire separate after a couple hours driving, then the coiled wire would cool and connect again, Happened in my 440 Dodge, drove me NUTS. Hope you find the Cure, Cheers Tom. 
		
	
		
		
		
		
		
		
		
		
		
	
		
		
	
	
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