Systems: Stop engine light appeared with an alarm sound, lose in power. I had a 2008 Fleetwood that did the same but only to find out the hose came apart. I hook the hose back and secured it down that was the problem. As I said on this 2009 SportsCoach the Turbo was replace in 2010 due to a recall, I was told by previous owner. RV starts find doesn't appear to sound any different other than turbo does not kick in and lose of power. It is my understanding that the rig is in a safe mode to prevent any other damage.