I just purchased a 2000 Ram 2500 5.9L engine, when it gets hot outside the truck randomly stalls. It's like someone shut off the key while i was driving. Everything seems normal, the check engine light does not go on, it just quits. If i let it sit for a while it will start back up and drive for a while.
Anyone have any ideas how to solve this problem?

 

Well a few to things to check would be, make sure the plug wires are not sitting on the valve covers, check for dist cap and rotor to be in good condition. Clean the IAC. Check and clean the throttle body. This will be a good place to start, I'm sure others will chime in a have a few more ideas. How many miles the truck?

 

That sounds a lot like a coil gone bad. It could possibly be a fuel delivery problem, but it sounds more like a coil to me.

What I'd do is toss a fuel pressure gauge and a spare spark plug and wire into the truck to figure out which it is the instant it dies. And leave very early for all of my afternoon appointments.

 

Truck has 177k miles on it. One other thing i noticed, when it cuts off, i see a message where the odometer is, it says "no rom". Could this be a computer going bad?

 

I have the same problem, still trying to figure it out.

 

sounds like a bad coil.
if its the asd system it will disable power to fuel pump and power to the coil.

you can do a shade tree fuel pressure test by pressing the valve in the test port on fuel rail drivers side. if you have fuel pressure you'll get a 49psi squirt, so cover it with a rag and don't smoke.

you can check for 12volt power to the coil with a volt meter,

you can test for high voltage coil output by grounding a spark plug.