I thought I would ask to see if anyone else has come across this issue. If my 2011 5.0 GT gets below a 1/4 tank on the few guage it can take sever tries to get it to fire up. Sometimes its just a long crank and other times like today we have to crank it 3 times to get it to start. The first couple of times it was completely random but today it has done it twice in a row. The only common factor in all the times it has done it was 1/4 tank. Usually thats when we fill the car up when it starts getting close to a 1/4. I cant get it into a dealer today to see what they say but I called 2 with no luck. Of course they both say bring it in but they have never worked on one yet. The girlfriend has the car and she is at work so hopefully it starts when she leaves. I will put some fuel in it to see if that helps it start, but then I have to run it down tomorrow to see if that causes it again. This is probably the first day it has been driven in the rain so I hope that isnt what causes the issue. If so I know that will never get figured out.