2007 sierra 1500 classic stalls out

[G-829937]

my gmc 190k runs fine then stalls out. wait two hrs and it starts and runs fine then stalls. no lights wait it starts new battery tight cables 60psi fuel when it stalls please help.

 

[98trck]

fuel tank vent system malfunction?
try leaving the gas cap loose so the tank can vent and see if it makes a difference
of course you may get a code from this

PETE