HI all. Hope someone here can help me. I have a 2005 roadster lt that wants to stall while I'm driving. When I try to restart it nothing happens. It has power as the dash lights up but the starter doesn't engage. After about 20 mins it starts fine. my mechanic replaced the pulse[starter] module but the problem persists. Of course the car works fine by the time its at my mechanics shop. Anyone have a similar problem?