I've never heard of a remote starter that cranks and cranks and cranks. I have only seen ones that have an option of short crank, or long crank. Neither crank more than 7 seconds or so. Only after the cranking it checks for a signal to see of the vehicle is running.
We had a turd of a sunfire, even the long crank mode wouldn't start it sometimes. Then it would just sit there, not crank and crank and crank.
But maybe a very cheap/generic starter would do that. again, get a quality unit as others have stated.