I own a 2003 Ford Mustang GT w/ a V8 4.6 Liter engine The problem I have is on really hot days (more so then cooler days) when I start it up it'll barely get started then it will stall. I start it up again, give it some gas and then its fine. It runs smooth, the gears switch nice and the previous owner took really good care of it. I thought it was a starter problem, but i ruled that out because it does start once I give it a little gas, and it only happens 10% of the time (really hot days). Otherwise it starts up just fine. Ideas on what it is?