99 dodge ram

[quote:266042c890="truck6"]I have a 99 dodge ram 2500 quad cab with 30,000 miles 5.9 L. Automatic, My prob is truck started out by just stalling occ. then I did a complete tune-up. Still same thing. Then replaced the fuel pump. Same thing stalling out. So then I replaced the crank shaft sensor. Still same thing. There is no check engine lights coming on and I used a ob2 code reader and no codes appear. When the truck runs for a little bit 15-20 mins depending on out side temp it will just cut off. Then wont start till truck is cooled down for awhile. What do you think it could be???[/quote:266042c890]

HI THERE

so you replaced all them parts !
when truck stall did you check to see whats missing is it fuel is it spark ?
know thats what i would do
run the truck untill it happen then check the spark and if poss. the fuel pressure and flow
and then injector pulse
common the dodge is the relay under the hood
i think they call it ASD

Hi it is the fuel system that shuts down.