I have 2000 grand am that will shut off above 60 mph and not want to start up again for a while I am baffeled anyone have any ideas?

Good LUCK!!! I had a 00 Grand Am GT and ended up having to sue Pontiac because it had some many problems!!! I had some 50-60 pages of repairs!

Some 11 Months later I won the case and they had to take the car back because it was a Lemon!