I work on a few fortis units and none of them have the starting scenario you describe, they all start as any other engine does. If you have 10.8 Volts at the starter & the starter slows & then stops turning, sounds like the starter is faulty.
How long does it take for the engine to start? What engine is in the unit-the unit's I service have the GM Vortec 4 cyl. They start in about 3-4 seconds.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.