Durango overheats and stalls out?

I have a 2004 Dodge Durango 4.7L with 35,000 miles and only replacement part on it is a new thermostat (last summer due to overheating, but no stalling).

So I was driving for about 10 minutes and the temp went a little above whats normal (no a/c on) and the engine sputtered when getting on the gas and then stalled out in traffic. I barely made it home with it sputtering. I let it sit for a hour, checked coolant, oil,connection to everything, etc, nothing found. Started it up and it ran fine untill it went above normal temp, so its only when it gets hot. The fans are spinning but maybe the clutch fan is unefficient? The check engine light is also on. Could it be a fuel filter causing it to run lean and hot, or maybe an EGR valve...but why only when its hot? Any help appreciated!